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SD, USA
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Posted: 2/23/2016 3:51:54 AM EDT
[#1]
Quote HistoryOriginally Posted By SCPossum1:
Thinking about trying something a little different. I have been talking to 320pf about doing a barrel run and am looking at a 24" barrel in a light contour with the spec II chamber. Looking to pick up some fps for the longer fields around here. My son has almost completely assumed ownership of the first 25/233 we built. I will need to build another if I plan on shooting this year. Anyone else thinking about starting a build? My latest quest centers on turning my old DPMS 308 AR into something more useful in 6.5/.260. I like your idea about a different 25-223 barrel. One idea I've had for quite a while is doing the Mossberg MVP in 25-223. I think that'd be a great deer rifle for walking hunters. |
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TX, USA
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Posted: 2/23/2016 2:59:45 PM EDT
[#2]
I would be interested in starting a build.
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SC, USA
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Posted: 2/24/2016 10:01:05 PM EDT
[#3]
Anyone ever used any nickel teflon coated components? Like an upper, bolt, etc? And if so, what do you think of it?
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Posted: 2/24/2016 10:25:41 PM EDT
[#4]
Quote HistoryOriginally Posted By SCPossum1:
Anyone ever used any nickel teflon coated components? Like an upper, bolt, etc? And if so, what do you think of it? As in NP3 from Robar? I have on a BCG and my friend has it on some pistols. It's super slick, I would use it again on a BCG if nitride options weren't so cheap. |
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Posted: 2/24/2016 10:28:34 PM EDT
[Last Edit: VeritatisUnus]
[#5]
Here's a teaser, I had a successful javelina hunt with the 25 this weekend. Round performed excellent. Will post pics later when I'm not a phone.
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SC, USA
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Posted: 2/24/2016 11:05:23 PM EDT
[#6]
Like this:
http://www.righttobear.com/Nickel-Teflon-Bolt-Cam-Pin-158-MPI-p/nt158.htm |
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Posted: 2/26/2016 12:02:12 AM EDT
[#7]
Quote HistoryOriginally Posted By SCPossum1:
Like this: http://www.righttobear.com/Nickel-Teflon-Bolt-Cam-Pin-158-MPI-p/nt158.htm Nickle Teflon is super slick. You can just use a paper towel to wipe carbon off. Give it a shot. |
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IL, USA
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Posted: 2/26/2016 12:12:44 PM EDT
[#8]
Who's cartridge is this exactly? Who is the single point of contact? I have an opportunity for whomever that is... can you please shoot me an email?
Thanks, |
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SC, USA
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Posted: 2/26/2016 7:23:37 PM EDT
[#9]
320pf is the point of contact. You may have to shoot him a message.
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NY, USA
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Posted: 3/10/2016 12:22:09 AM EDT
[#10]
chewbacca,
I would like to see your javelina hunt pictures. 
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Posted: 4/20/2016 5:07:15 PM EDT
[#11]
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NY, USA
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Posted: 4/21/2016 10:51:34 PM EDT
[#12]
Hi wombat,
NICE! Where did you hit him and did the 80-grain TTSX pass throught 320pf |
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Posted: 4/21/2016 11:24:55 PM EDT
[#13]
I generally hit pigs regardless of size in the neck. After observing and stalking this one I figured he was a good candidate for mounting so I didn't want to damage the cape. I aimed and hit him directly behind the shoulder. He dropped in place - didn't take a single step - and the bullet passed completely through. This 80-grain TTSX load has easily taken two dozen pigs and they are always one-shot-and-drop scenarios. To be fair, however, I very rarely take shots in which I am not completely confident of shot placement.
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NY, USA
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Posted: 4/23/2016 12:25:03 PM EDT
[Last Edit: 320pf]
[#14]
Hi wombat,
I am thinking about getting a couple of boxes of the 80-grain TTSX bullets. I shot some of these a while back and if I remember correctly I was getting about 2800 fps (16-inch barrel) with R7. Am I remembering this correctly. I know that you have a 18-inch barrel; What velocity are you getting for your 80-grain TTSX and 24.0 grains of Reloader 7 load.)? I would like to try Accurate 2200 and Alliant 1200-R and see these powders perform. |
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Posted: 4/23/2016 7:15:33 PM EDT
[#15]
I am getting 2860 fps with this load.
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SC, USA
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Posted: 4/23/2016 8:58:04 PM EDT
[Last Edit: SCPossum1]
[#16]
Nice pig! Those tusks are huge!
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Posted: 5/11/2016 11:13:55 AM EDT
[#17]
Anybody know where I can get a Giraud trimmer case holder blank cut for this caliber?
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IN, USA
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Posted: 5/21/2016 3:29:12 PM EDT
[#18]
27.5 - 29 gr AA 2230 / with 87 gr Speer / CCI 450 / 2.290 COL ... Not real happy w group size... 3000 fps w a 16" barrel & Griffin Recce 7 .... 100 fps more than my max with AA 2200, and no pressure signs...
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IN, USA
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Posted: 8/12/2016 7:36:59 PM EDT
[#19]
I just placed an order from 320pf for a 20" medium-heavy profile barrel in 25-223. He's going to optimize the throat to shoot the 90gr Sierra BK bullets. I plan to start with RL-7 and hope to get 2800+fps as others have with a similar combination. With a high BC bullet, this should be an outstanding combination.
I'll post pictures and test results once I have em ! I read through this whole thread...tired now :) |
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SD, USA
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Posted: 8/13/2016 9:53:23 PM EDT
[#20]
Quote HistoryOriginally Posted By youngda9:
I just placed an order from 320pf for a 20" medium-heavy profile barrel in 25-223. He's going to optimize the throat to shoot the 90gr Sierra BK bullets. I plan to start with RL-7 and hope to get 2800+fps as others have with a similar combination. With a high BC bullet, this should be an outstanding combination. I'll post pictures and test results once I have em ! I read through this whole thread...tired now :) Congrats on your order. You should be able to push 3000 fps, at least with H4198. I haven't used RL-7 yet.
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IN, USA
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Posted: 8/14/2016 5:45:09 PM EDT
[#21]
I don't recall reading 3000fps for a 90gr bullet with H4198. Could you point me to where someone posted those loads? Thanks.
Quote HistoryOriginally Posted By JButlerHickok:
Congrats on your order. You should be able to push 3000 fps, at least with H4198. I haven't used RL-7 yet. Quote HistoryOriginally Posted By JButlerHickok:
Originally Posted By youngda9:
I just placed an order from 320pf for a 20" medium-heavy profile barrel in 25-223. He's going to optimize the throat to shoot the 90gr Sierra BK bullets. I plan to start with RL-7 and hope to get 2800+fps as others have with a similar combination. With a high BC bullet, this should be an outstanding combination. I'll post pictures and test results once I have em ! I read through this whole thread...tired now :) Congrats on your order. You should be able to push 3000 fps, at least with H4198. I haven't used RL-7 yet. |
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USA
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Posted: 8/16/2016 9:28:21 AM EDT
[#22]
In a 20" barrel is the 1/10 twist adequate for the heaver 100g bullets or is 1/9 needed? I am building a 35-45 20" bolt action savage and will be able to load the bullets longer out of the case and might even be able to shoot some of the 117gr. I will primarily be shooting the 80-90gr but don't want to limit my selection. But the faster 1/9 may over spin the 70'gr. I would be happy with the best accuracy with 87gr but want to play around with the 100.
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Posted: 8/16/2016 10:45:57 AM EDT
[#23]
Quote HistoryOriginally Posted By adam731432:
In a 20" barrel is the 1/10 twist adequate for the heaver 100g bullets or is 1/9 needed? I am building a 35-45 20" bolt action savage and will be able to load the bullets longer out of the case and might even be able to shoot some of the 117gr. I will primarily be shooting the 80-90gr but don't want to limit my selection. But the faster 1/9 may over spin the 70'gr. I would be happy with the best accuracy with 87gr but want to play around with the 100. The 10 wlil handle your 100's. Trust me you are in absolutely no danger of "over spinning" the 70 grainers in a 25X223 Sharps. The velocity isn't even close to a concern wit that twist rate. Greg |
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NY, USA
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Posted: 8/16/2016 11:55:15 AM EDT
[Last Edit: 320pf]
[#24]
Hi Gentlemen;
Just so there is NO CONFUSION; This is a 25-223AR thread NOT a 25x45 Sharps thread (which will NOT chamber in a 25-223AR and may create an unsafe condition). The 25-223AR chamber design is optimized for long ogive high BC bullets given the for the COAL restrictions imposed by the AR15 platform. In addition, the throat and lead has been upgraded ("SPECII" chamber) to maximize the overall velocities achievable for all bullets. Could you please take any further discussion of this some where else Thank you Quote HistoryOriginally Posted By GLShooter:
The 10 wlil handle your 100's. Trust me you are in absolutely no danger of "over spinning" the 70 grainers in a 25X223 Sharps. The velocity isn't even close to a concern wit that twist rate. Greg Quote HistoryOriginally Posted By GLShooter:
Originally Posted By adam731432:
In a 20" barrel is the 1/10 twist adequate for the heaver 100g bullets or is 1/9 needed? I am building a 35-45 20" bolt action savage and will be able to load the bullets longer out of the case and might even be able to shoot some of the 117gr. I will primarily be shooting the 80-90gr but don't want to limit my selection. But the faster 1/9 may over spin the 70'gr. I would be happy with the best accuracy with 87gr but want to play around with the 100. The 10 wlil handle your 100's. Trust me you are in absolutely no danger of "over spinning" the 70 grainers in a 25X223 Sharps. The velocity isn't even close to a concern wit that twist rate. Greg |
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USA
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Posted: 8/16/2016 12:07:38 PM EDT
[Last Edit: adam731432]
[#25]
Yes I know the 25-223 has a 2mm shorter neck to alleviate the neck riding up on the orgive on longer bullets when seated to mag length but in a bolt action I should be able to load the CAOL to about 2.40-2.50 instead of 2.226 and use similar load data and obviously common twist rates. I am not afraid of 70gr coming apart with 1/9 twist bust spinning the bullet more than needed is not optimum for accuracy. It has even been said that a bullet is most accurate when just stabalised and not over spun so I am trying to find the sweet middle spot for the 87gr as i probably wont shoot 100's as much.
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NY, USA
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Posted: 8/16/2016 12:21:58 PM EDT
[#26]
Hi Adam,
General questions about 25 cal bullets, barrels twist rates, and velocities are welcome. The 1:10 twist barrels are pretty much optimum for the 25 cal bullets that you are interested in shooting in a 223/5.56 NATO based wildcat. They are also much easier to come by. If you want to get more specific, there are several bullet spin-rate calculators that can help answer your question. |
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Posted: 8/16/2016 2:52:35 PM EDT
[#27]
Wow, I haven't been on here in a long time, but I am glad this thread is hanging on.
320, can you roughly estimate using your ballistic calculator velocities from a 12.5 barrel using 2.3 coal 26.0 AA2200 90gr GK and 25.0 AA2200 100 PH? Gracias. |
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NY, USA
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Posted: 8/16/2016 9:14:57 PM EDT
[#28]
Hi Chewbacca,
Here you go. From a 12.5 in. barrel the 100 gn Sierra Pro Hunters should be good for about 2400-2550 fps. Whilst the Sierra 90gn GK should be good for around 2600 to 2700. If I remember correctly, I built two 12.5 barrels for Altair. Maybe he will step in here and tell us how the 12.5 in. barrels worked for him. Hey chewbacca, if it is not too much of a bother could you post pictures from your javelina hunt? Thanks, 320pf Quote HistoryOriginally Posted By chewbacca:
Wow, I haven't been on here in a long time, but I am glad this thread is hanging on. 320, can you roughly estimate using your ballistic calculator velocities from a 12.5 barrel using 2.3 coal 26.0 AA2200 90gr GK and 25.0 AA2200 100 PH? Gracias. |
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Posted: 8/16/2016 10:19:08 PM EDT
[#29]
Thanks. It's a pain in the ass since i used a disposable camera. I'll think of something.
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IN, USA
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Posted: 8/19/2016 5:08:32 PM EDT
[#30]
I think this is the round the military should be using instead of the 5.56. You can get the same trajectory as a 60gr Ballistic Tip with a 90 grin Blitzking in 25 caliber. And it delivers a lot more energy at all ranges with a 50% heavier and a larger diameter bullet. This means it is a lot more effectivity out of the same case. What's not to love.
I can't wait to get my barrel. I have the rest of the upper parts to put it together. |
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SC, USA
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Posted: 8/20/2016 11:54:03 PM EDT
[#31]
Big Thank You out to 320pf! Another one is put together in the safe. Will post some pics when I get some glass. It looks kind of naked right now.
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NY, USA
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Posted: 8/21/2016 10:45:50 AM EDT
[Last Edit: 320pf]
[#32]
Hi SCPossum1,
Your are welcome. You could share some of the details like length profile etc... 
Quote HistoryOriginally Posted By SCPossum1:
Big Thank You out to 320pf! Another one is put together in the safe. Will post some pics when I get some glass. It looks kind of naked right now. |
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IN, USA
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Posted: 9/6/2016 5:37:33 PM EDT
[Last Edit: youngda9]
[#33]
I first wanted the 25-223 with the intention of shooting the awesome 90gr Sierra BK bullets with a 0.345BC. But wIth the magazine limitation of about 2.260", the boat-tail of the 90gr blitzking is going to take up a lot of powder space. I'm thinking that the 87gr Speer HotCore would be a better idea for a heavy bullet, since it'll have more forward weight (no long plastic tip), and a flat base. Yet it still has a .300BC. The blitzking has a .345BC. I think this will be the better bullet due to the ability to use more powder.
Boiler room is the major limitation of the .223 cartridge when going to heavier bullets. I shoot 60gr bullets in .223 regularly, so I really prefer to leapfrog the 75gr offerings in 25 caliber for the most part. Below are some bullet comparisions. The Hornady 75gr 0.290BC bullet length=0.867 Speer 87 HotCor 0.300BC bullet length = 0.832 Sierra 90 BK = 0.345BC bullet length= 1.062 The Speer is a full 0.23" shorter than the 90BK...that's almost a full bullet diameter, and with a 0.300 BC...that is the winner in my book. For Varmint loads the Speer TNT has a .310BC and is 0.916" in length...0.146" shorter than the BK. I'm going to seat my rounds to 2.310" as well. I just stumbled onto the below mags that will allow for the longer length, perfect for more fps !!! Another reason that I bought those mags is that I’m really scared to accidentally load a 25-223 round into a .223 rifle and pull the trigger. This way my 25 has dedicated and unique looking mags that are just for that one rifle. Hopefully this will help prevent any accidents. http://www.ammosc.com/223-stainless-steel-10-rd-magazine/ Shown below are the 75gr Hornady, 87gr Speer SP, and the Sierra 90gr BK bullets all loaded to 2.310". Can't wait for my barrel ! 
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SC, USA
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Posted: 10/2/2016 8:57:39 PM EDT
[#34]
Finally a cool snap. Took the new build out and had some success. 24" lightweight barrel with a Nickel Teflon upper and BCG. AA2200 and 100gr Hornadys. Very accurate!
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NY, USA
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Posted: 10/2/2016 10:06:40 PM EDT
[#35]
Hi SCPossum1,
Nice deer. Can you tell us about where you hit the deer and do you have any more photos? How fast are you able to push the 100 gn Hornaday's out of a 24" barrel? |
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Posted: 10/3/2016 7:45:50 PM EDT
[#37]
Nice.
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SD, USA
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Posted: 10/3/2016 11:00:39 PM EDT
[#38]
Quote HistoryOriginally Posted By youngda9:
I think this is the round the military should be using instead of the 5.56. You can get the same trajectory as a 60gr Ballistic Tip with a 90 grin Blitzking in 25 caliber. And it delivers a lot more energy at all ranges with a 50% heavier and a larger diameter bullet. This means it is a lot more effectivity out of the same case. What's not to love. I can't wait to get my barrel. I have the rest of the upper parts to put it together. I agree and have become a real believer in the .257 bore + .223 case for performance way beyond expectations. My hunting days kind of got braked with a long term injury. I was thinking of loaning the upper along with ammo to a responsible person(s) to use it on game. My biggest concern would be losing my nice Lapua cases like on a helicopter hunt for hogs. |
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NY, USA
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Posted: 10/5/2016 10:44:19 PM EDT
[Last Edit: 320pf]
[#39]
Quote HistoryOriginally Posted By SCPossum1:
I am running at about 2700fps on this load. Quote HistoryOriginally Posted By SCPossum1:
I am running at about 2700fps on this load. The ballistics models (using the original chamber spec) indicated that the 24-inch barrel would push a 100 gn bullet to 2700 fps. Are you using the same loads that you are using in your 16.5-inch barrel? With the new chamber spec, you should get as much as another 50-60 fps. This would require reworking up your loads. I do not remember if your 16-inch barrel has the new chamber spec or the old one. Originally Posted By SCPossum1:Same performance on game as the 16" barrel. The bullet goes in about 2" and starts a wound cavity running aprox 6" long and 3-4" wide and then tapers back off for a quarter size exit. For these size deer it is a perfect combination of speed and weight. The 100 gn Hornady performance is very similar to the ballistic gel tests that Altair did a while back in this thread on the 100gr SGK. Notice that the muzzle velocity of his test was 2500 fps and was shot at close range. I also think that the Hornady 100 gn bullets are tougher than the Sierra 100 GK. What was the range of your shot on this deer? Is it possible that the impact velocity was similar? Originally Posted By Altair:
MV=2500 fps Neck Length = 1" Cavity = 1" to 11" Max cavity = 5.75" @ 4.75" of penetration Penetration = 13" gel +2 water jugs (~25") Retained Weight = 65.6gr (65.6%) Recovered Diameter = Max .617", Min .589", Avg .603" It is great when all the modeling and testing are validated by real world performance. |
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SC, USA
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Posted: 10/7/2016 5:38:55 PM EDT
[#40]
I am using a different load. I am shooting right at 2700 fps with the 100 gr bullet. The deer was 125 yards away and the estimated velocity at that range was 2461 fps.
I haven't done a lot of testing with new loads due to working out the gas system. But the accuracy is outstanding. Might be the increase in magnification from the scope, but the barrel is extremely accurate. The original loads in this chamber shoot at a lower velocity than the original chamber. Might be due to the extended throat? I do not have great ballistic expertise. I just observe and comment.
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Posted: 10/11/2016 10:56:35 PM EDT
[#41]
Here is the entry and exit of the javelina. About 120 yard shot with the 90gr GK, 2.30, 25.2 AA2200, 2950 at muzzle. The pig actually rolled over when hit. Total bang-flop. |
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IN, USA
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Posted: 10/12/2016 5:08:42 PM EDT
[Last Edit: youngda9]
[#42]
2950 at the muzzle with that really long 90gr GK (which takes up a lot of powder room). That is fast. What is your barrel length?
Congrats on your hunting success. Data that someone posted from earlier in the thread shows the following. This is why I'm surprised by your velocity with a 10g lighter and longer bullet. 100gr Sierra ProHunters AA2200 (16-inch 1:10 barrel) Load g––- velocity fps 22.0––––––-2260 22.5––––––-2310 23.0––––––-2380 23.5––––––-2440 24.0––––––-2520 24.5––––––-2610* *MAX OR SLIGHTLY OVER MAX LOAD |
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NY, USA
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Posted: 10/13/2016 10:32:03 PM EDT
[Last Edit: 320pf]
[#43]
Hi youngda9,
Chewbacca is using the Sierra 90gn GameKing. The bullet length is about 0.89”. Here are the BC's that Sierra lists for the 90 gn GK bullet BC: 0.250 @ 2800 fps and above 0.260 between 2800 and 2000 fps 0.267 between 2000 and 1400 fps 0.255 @ 1400 fps and below The Sierra 90gn BlitzKing bullet is 1.066” in length. Here are the BC's that Sierra lists for the 90 gn BK bullet BC: 0.388 @ 3100 fps and above 0.375 between 2900 and 3100 fps 0.345 between 2400 and 2900 fps 0.330 @ 2400 fps and below Chewbacca can give you all the specifics of his rifle mags, load data etc.... |
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Posted: 10/13/2016 10:53:41 PM EDT
[Last Edit: VeritatisUnus]
[#44]
Quote HistoryOriginally Posted By youngda9:
2950 at the muzzle with that really long 90gr GK (which takes up a lot of powder room). That is fast. What is your barrel length? Congrats on your hunting success. Data that someone posted from earlier in the thread shows the following. This is why I'm surprised by your velocity with a 10g lighter and longer bullet. 100gr Sierra ProHunters AA2200 (16-inch 1:10 barrel) Load g––- velocity fps 22.0––––––-2260 22.5––––––-2310 23.0––––––-2380 23.5––––––-2440 24.0––––––-2520 24.5––––––-2610* *MAX OR SLIGHTLY OVER MAX LOAD No the GameKing is really short. You're thinking of the Blitzking. Trust me, I have both. The GK is a HP with a fat meplat making it short. Also that is old school data. Load to 2.3+ in an ASC mag, Spec 2 chamber, mag primer, I have pushed the 90 GK with 26.0 (+) and have broke 3k. There is a pic of that way back in the thread. 20" barrel, low mass system with adj gas. Don't use any of my data unless your have my specs. It would be dangerous in the gen 1 chamber. The 90 GK at 2.3x would get stuck in the lands with the original chamber and that is what led to 320pf and I doing a longer throat for the Spec 2. |
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ID, USA
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Posted: 10/14/2016 10:33:00 PM EDT
[#45]
Question, may have been already asked: can a spec 1 barrel be opened up to spec 2? I have one from a couple years ago. What would be the cost? Right now I am running the 87 gr. Speer HP TNT with 24.5 gr 2200 at about 2700 fps. Higher and accuracy suffers. Also, I played with a few ACS mags and something about the feed geometry led to the bullets getting thrown out of concentricity in the case necks, so I gave the mags away. Thanks for any info.
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NY, USA
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Posted: 10/14/2016 10:38:03 PM EDT
[#46]
Hi rdc_bones,
Yes you can upgrade your barrel to "Spec II" standard. I will send a PM to you. |
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IN, USA
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Posted: 10/22/2016 9:24:33 AM EDT
[#47]
I was able to get 3100fps with the 75gr V-Max, measured at 12 feet, out of my 20" using 26.0gr of RL7. I haven't gone to a higher charge, yet.
I was only able to get to just over 2800fps with the 87gr HotCore bullet with RL-7...I'm not very happy about that one. The soft nose bullets get buggered up on the feed-ramp, which I'm sure will affect accuracy. This is an issue with any AR, IMO. So I'm switching my focus to the V-Max bullet. I haven't tried for an accuracy load with either at this time, just did some accuracy loads in order to find out where I'd like to try for accuracy first. |
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SC, USA
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Posted: 10/22/2016 11:48:36 PM EDT
[#48]
It was a good evening in the stand with the 24" rifle. We shot two deer this evening and both dropped on the spot. The load is again the 100gr Hornady SP running around 2675-2700 fps over AA2200. The range was 100yds and 150 yds. Now that the gas system is optimized and reliably picking up the nxt round, we will be trying to stretch this round out in the next few weeks. We were going to try shooting some long distances tonight, but the deer kept coming closer and closer. These two were roughly 140lb deer. No pics tonight as the lights at the shed were knocked out by Hurrican Mathew and haven't got a chance to fix them yet. I was doing all I could do to skin two deer in the dark with flashlights.
The barrel is a 24" lightweight profile with a Spec II chamber. Very accurate with everything I have fed it so far. It is a little long, but for the treestand it is perfect. We have the 16" for when a compact rifle is needed. I will be testing Chewbacca's 90gr GK load over the next few weeks as well. Tried to do it today, but had to clear roads in order to get through to some of the mangled treestands. |
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Posted: 10/23/2016 12:36:43 PM EDT
[#49]
Originally Posted By 320pf:
Hi rdc_bones, Yes you can upgrade your barrel to "Spec II" standard. I will send a PM to you. OK what's the "Spec II" standard (I have an early barrel, as a matter of fact it's the OP's old barrel) Can you tell I haven't been back to this thread in a while? 
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NY, USA
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Posted: 10/23/2016 1:12:18 PM EDT
[#50]
Hi Et2ss,
So you have the twin to my original 16.5" barrel. How has it been working out? I would like to know what your application is, deer, varmints, etc...? The new "Spec. II" chamber has a longer throat/lead. This allows you to seat bullets out to a C.O.L of 2.31". This allows you to take advantage mags like the stainless steel ASC . The also helps with bullets that have a short ogives like the 90 gn. GameKing, 117 gn Hornady Round Nose, and 100 gn Speer BT, and Sierra 100 gn GameKings, etc. Yes, the older chambers can be easily updated to the newer Spec. The new chamber Spec. seems to give an additional 50+ fps to this round. 320pf |
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