User Panel
User Panel
User Panel
|
Posted: 4/8/2021 1:58:23 PM EDT
[#1]
In my opinion, 55 out of a 1:9 is done at 300. Even then, it better be a big fucking target
|
|
|
|
Posted: 4/8/2021 2:25:23 PM EDT
[#2]
use flat base bullets as they will be the most accurate at 400 and under. I shot a 2 inch group at 400 yards with 55 grain from a 16 inch barrel 1/9 twist.
|
|
|
|
Posted: 4/8/2021 2:25:42 PM EDT
[#3]
Quote HistoryQuoted: In my opinion, 55 out of a 1:9 is done at 300. Even then, it better be a big fucking target Alright... lol -- so for my situation what do you recommend? And how is a 55gr dead at 300 yards? I always heard 1:9 was "standard" for 55gr 99% of my 556 shooting is done in 3 gun under 100 yards, so I never really got into precision logistics |
|
|
|
Posted: 4/8/2021 2:34:41 PM EDT
[#4]
IMHO, there is no reason to go with a 1n9 twist. I have seen way to many different LtWt factory loads shoot great groups in a 1n7 twist. My favorite of all time was the 50gr Fed Tipped varmint, out of any and all 1n7 twist barrels... right around 1 MOA everytime, every rifle, with a competent shooter.
And that load was "by the book" all wrong for the 1n7 barrels... no where near the barrels lands, fast twist rates, bulk loaded. The one thing that did matter, was the quality of the bullet. So I am saying, again, IMHO... the quality of your bullet will matter more then the choice between a 1n9 twist or a 1n7 twist. As for the distance... again a 1n7 twist allows the use of far better ballistic coefficient bullets and that means ( most to me ) less wind drift. I have to ask, what would you consider adequate precision at 500yds ? And the quality of your barrel matters a lot. Given the current prices of quality ammo... a great barrel is a bargain. ( as long as you can find one in stock. ) |
|
|
|
Posted: 4/8/2021 2:37:06 PM EDT
[#5]
Quote HistoryQuoted: Alright... lol -- so for my situation what do you recommend? And how is a 55gr dead at 300 yards? I always heard 1:9 was "standard" for 55gr 99% of my 556 shooting is done in 3 gun under 100 yards, so I never really got into precision logistics I shoot whatever out my 1/9. 55gr past 300 you can’t hardly tell it hit steel. 62gr is better 77gr works also but test your rifle. Some 1/9 will shoot it fine, some won’t. Mines does great with them. |
|
|
|
Posted: 4/8/2021 2:37:28 PM EDT
[#6]
Go 1:8. Not appreciably less accurate but much more capable downrange. Like anything else depends on size of your target. Steel silhouettes at 600 yards have been no issue for M193 clones for me (even with 1:12 twist) If you want to engage 2MOA or less plates load a 77 SMK (or tmk if you find a load your barrel likes) and blast away.
|
|
|
|
Posted: 4/8/2021 2:43:36 PM EDT
[#7]
Guy named Shawn likes to shoot milspec ARs with common ammo out to 1,000 yards. You can find his articles by searching LooseRounds.com
|
|
|
|
Posted: 4/8/2021 2:45:21 PM EDT
[#8]
If youre buying a new barrel there is no reason to buy a 1:9.
If you already had one, Id say try it out and see your results before purchasing new. Check out 9 hole reviews 500 yard challenges on youtube. He uses a couple different variants of ARs and mostly uses 55gr ammo. Im pretty sure most barrels he uses are 1:7 Barrel length also plays a role particularly with slower twist rates. |
|
|
|
Posted: 4/8/2021 2:53:57 PM EDT
[#9]
I’m on the 1:8 train as there’s no real downside. Shoots everything except the ultra long heavy stuff you won’t need.
It all comes down to your requirements. If you’re blasting full size IPSC steel just about anything will work. With a decent optic you could ring it all day. If you’re trying to shoot varmints or shoot little sub MOA groups bulk 55gr obviously isn’t up to it. |
|
|
|
Posted: 4/8/2021 2:54:51 PM EDT
[#10]
I haven't tried 500 with my 1:9 16" barrel and 55gr bullets but I have done 400. It's plenty accurate for dinging plates at that range. Any wind really pushes the bullet but that's part of the fun.
It's not gonna win you a marksmanship competition but you'll be fine. |
|
|
|
Posted: 4/8/2021 2:58:22 PM EDT
[#11]
All I used from 0-600 was 55 when I was shooting competitions. Mind you we only did 600 man sizes targets but it reached them fine.
300-400 was easy sauce. No need for heavier bullets. Rifle was a 20 incher. |
|
|
|
Posted: 4/8/2021 4:05:11 PM EDT
[#12]
75/77gr is your best bet for distance, not just for it's ballistic properties but also because it shows up much better on impacting steel.
Having said that, 55gr Wolf Gold did just fine for me out of my 16" 1:7. In general I'd say it's easier to run lighter ammo through a faster twist than it is to run heavier ammo through a slower twist with the AR. A 1:8 or 1:7 should handle your 55gr without complaint, I wouldn't bet 100% on a 1:9 or 1:12 handling 75/77gr as well.   
|
|
|
|
Posted: 4/8/2021 4:43:30 PM EDT
[#13]
Quote HistoryQuoted: 75/77gr is your best bet for distance, not just for it's ballistic properties but also because it shows up much better on impacting steel. Having said that, 55gr Wolf Gold did just fine for me out of my 16" 1:7. In general I'd say it's easier to run lighter ammo through a faster twist than it is to run heavier ammo through a slower twist with the AR. A 1:8 or 1:7 should handle your 55gr without complaint, I wouldn't bet 100% on a 1:9 or 1:12 handling 75/77gr as well. https://i.imgur.com/hJVEnZ1.jpg https://i.imgur.com/pHdVtuF.jpg https://i.imgur.com/B4CMAeT.jpg Damn, that’s a cool range. I wish there was something like that in my area. |
|
|
|
Posted: 4/8/2021 6:05:42 PM EDT
[#14]
Quote HistoryQuoted: IMHO, there is no reason to go with a 1n9 twist. I have seen way to many different LtWt factory loads shoot great groups in a 1n7 twist. My favorite of all time was the 50gr Fed Tipped varmint, out of any and all 1n7 twist barrels... right around 1 MOA everytime, every rifle, with a competent shooter. And that load was "by the book" all wrong for the 1n7 barrels... no where near the barrels lands, fast twist rates, bulk loaded. The one thing that did matter, was the quality of the bullet. So I am saying, again, IMHO... the quality of your bullet will matter more then the choice between a 1n9 twist or a 1n7 twist. Yup. As you stated, it's the quality of the bullet that matters. The 50 grain Federal load used the Hornady 50 grain V-MAX bullet, a quality bullet. Hand-loads topped with the 50 grain V-MAX have produced 3/4 MOA groups from my Lothar Walther barreled AR-15 with a 1:8" twist.   As for 55 grain bullets, again, it's the quality of the bullet that matters. The 50-shot composite group pictured below was fired from my 20" Noveske barrel with a 1:7" twist using the Sierra 55 grain BlitzKing, a quality bullet.  ... |
|
|
|
Posted: 4/8/2021 6:22:47 PM EDT
[#15]
Quote HistoryQuoted: Yup. As you stated, it's the quality of the bullet that matters. The 50 grain Federal load used the Hornady 50 grain V-MAX bullet, a quality bullet. Hand-loads topped with the 50 grain V-MAX have produced 3/4 MOA groups from my Lothar Walther barreled AR-15 with a 1:8" twist. https://www.ar15.com/media/mediaFiles/28568/lothar_walther_control_group_50_grain_ho-1897521.jpg https://www.ar15.com/media/mediaFiles/28568/50_grain_vmax_versus_75_grain_amax_01-1897520.jpg As for 55 grain bullets, again, it's the quality of the bullet that matters. The 50-shot composite group pictured below was fired from my 20" Noveske barrel with a 1:7" twist using the Sierra 55 grain BlitzKing, a quality bullet. https://www.ar15.com/media/mediaFiles/28568/noveske_20_inch_barrel_50_shot_composite-1897685.jpg ... A flat base bullet will do even better like the Hornady 53 grain. When i am having a decent day with 60 grain flat base I shoot 1/4 inch groups at 100. |
|
|
|
Posted: 4/8/2021 6:32:25 PM EDT
[#16]
Being an F Class FTR competitor, with .223,
This is something a actually know about. 1st, use the longest barrel you can. Not as much for accuracy as for a complete powder burn 2nd, you need no less than 69gr bullets. And good ones at that. Light bullets will not retain enough energy to go 600yds. They drop like a rock! I got quite a surprise when I began measuring & weighing bullets. The worst of the lot was Sierra Match King. Length to Ogive varried up to .005", weight carried by 4 grains! Pure junk. The best? Berger VLD with Nosler Custom Comp close behind. Those 2 are very consistent in construction, but different designs. VLD just worked better in my Schilen barrel. Nosler was 69gr, Berger was 70gr. 3rd, no less than 1/8 twist. 1/7 is better in the wind. Mine is 1/7, 70gr bullet at 3000fps. It bucks the wind as best any .223 can. I tried 80gr & 90gr bullets as well, but in MY rifle, the 70's work the best. I know this info means you must hand load. If you can't, just buy the heaviest bullet you can. Again, a 20" 1/7 barrel will stabilize up to 90gr, but will shoot the 55's ok. |
|
|
|
Posted: 4/8/2021 6:38:33 PM EDT
[#17]
Of course you can. But if the wind blows, well.....
|
|
|
|
Posted: 4/8/2021 6:39:41 PM EDT
[#18]
Quote HistoryQuoted: When i am having a decent day with 60 grain flat base I shoot 1/4 inch groups at 100. Yes, at 100. So what? OP is asking about 500 and beyond I soot 1/2 moa at 600...all day. 70gr, 1/7, 3000 fps. |
|
|
|
Posted: 4/8/2021 7:42:35 PM EDT
[#19]
Quote HistoryQuoted: I’m on the 1:8 train as there’s no real downside. Shoots everything except the ultra long heavy stuff you won’t need. It all comes down to your requirements. If you’re blasting full size IPSC steel just about anything will work. With a decent optic you could ring it all day. If you’re trying to shoot varmints or shoot little sub MOA groups bulk 55gr obviously isn’t up to it. Agree. 1/8 if you can find one. It gives you the best of all worlds except the really long bullets. If you want to move up to 69-75 grain bullets you can with little adjustment. kwg |
|
|
|
Posted: 4/8/2021 9:12:56 PM EDT
[#20]
Try 69 grain Sierra Match Kings. They stabilize in 1/9 and drift less than 55/62.
|
|
|
|
Posted: 4/9/2021 7:14:48 AM EDT
[#21]
I've done 500 yards with 60gr Vmax from a 16" bbl with good results.
They don't hit real hard and the a light breeze will push them around. |
|
|
|
Posted: 4/9/2021 7:36:47 AM EDT
[#22]
Quote HistoryQuoted: Yes, at 100. So what? OP is asking about 500 and beyond I soot 1/2 moa at 600...all day. 70gr, 1/7, 3000 fps. Quote HistoryQuoted: Quoted: When i am having a decent day with 60 grain flat base I shoot 1/4 inch groups at 100. Yes, at 100. So what? OP is asking about 500 and beyond I soot 1/2 moa at 600...all day. 70gr, 1/7, 3000 fps. In my first post in this thread I had mentioned that I have shot a 2 inch group at 400 yards with 55 grain flat base Hornady amax bullets. And by the way it was in a 15 mph crosswind.  I also shoot a 88 grain hornady bullet from my 6.5 twist F class gun at 1000 yards but the OP asked about 1/9 twist from 200-300 yards and to answer his question it is perfect for 55 grain and lighter bullets. |
|
|
|
Posted: 4/9/2021 8:11:39 AM EDT
[#23]
At this point, I don't understand 1/9, 1/8 or 1/7 provide more.
I shoot regularly out to 300 with a 10.3, 12.5, 16 5.56 SBRs and rifle. I reload, and sometimes would grab 55gr FMJ-BT from Hornady. I use red dots, a TA33 ACOG (3x) and a PST Gen 2 1-6x. Obviously the variable gives me significantly more precision, but I've actually been relatively impressed with repeatability just using a bipod on all 3 rifles. Certainly not match level precision, but better than I expected consistency, even out my the girlfriends mk18-ish build with a red dot. Having said that, wind tends to be the second biggest factor in my experience, as the #2 on the list of accuracy issues right behind the moron on the trigger.  My primary 223 bullet is the Hornady 75gr BTHP, but I'm way more into Grendel at this point, the 16" barely gets trigger time anymore. |
|
|
|
Posted: 4/9/2021 8:23:38 AM EDT
[#24]
1/9 was and is what many makers put in complete guns that they sell.
1/8 is normally a home built option 1/7 is the .mil standard so milspec type Colts, BCM, FN guns come with that. Nephew just got a M&P 15. 1/9 |
|
|
|
Posted: 4/9/2021 8:48:56 AM EDT
[#25]
1:8 is probably the most universal twist rate. It will handle pretty much anything.
1:9 will handle up to around 69gr (and sometimes up to 77gr). It's kinda of the sweet spot for 62gr if that's the highest you're going |
|
|
|
Posted: 4/9/2021 8:59:07 AM EDT
[#26]
A good bullet through a good barrel will be ACCURATE at all distances until the bullet goes subsonic.
Appropriate twist-rate for weight of bullet is necessary. I exclude cheap 55-grain FMJ from any definition of “good bullet.” Good bullets are expensive for a reason. |
|
|
|
Posted: 4/9/2021 9:00:56 AM EDT
[#27]
Quote HistoryQuoted: In my first post in this thread I had mentioned that I have shot a 2 inch group at 400 yards with 55 grain flat base Hornady amax bullets. And by the way it was in a 15 mph crosswind. Not trying to be an ass, but 1/2 moa at 400 from a 55gr bullet in 15mph crosswind? Gonna have to throw the BS flag on that. |
|
|
|
Posted: 4/9/2021 9:06:28 AM EDT
[#28]
This is a good bullet.
It will be accurate from a good barrel easily to 500 yards. A HEAVIER bullet of similar quality will have a better BALLISTIC COEFFICIENT. A bullet with a higher ballistic coefficient will be less-affected by wind. But a heavier bullet is not inherently “more accurate.”  Attached File |
|
|
|
Posted: 4/9/2021 9:11:59 AM EDT
[#29]
If you shoot HORNADY 75’s, be aware that the copper jacket on the Hornady is 0.003” thinner than Sierra.
So long as you keep velocity below 2700 FPS, with the Hornady, the jacket will probably stay intact. Push them faster, and jacket integrity starts to become uncertain. We blew up a LOT of H75’s running them too fast out of various guns. If you are pushing heavy bullets hard, Sierra is the go-to. |
|
|
|
Posted: 4/9/2021 9:14:14 AM EDT
[#30]
A high-quality 55 should be plenty accurate to 500 yards from a 1:9 barrel.
|
|
|
|
Posted: 4/9/2021 9:33:06 AM EDT
[#31]
Quote HistoryQuoted: Not trying to be an ass, but 1/2 moa at 400 from a 55gr bullet in 15mph crosswind? Gonna have to throw the BS flag on that. Quote HistoryQuoted: Quoted: In my first post in this thread I had mentioned that I have shot a 2 inch group at 400 yards with 55 grain flat base Hornady amax bullets. And by the way it was in a 15 mph crosswind. Not trying to be an ass, but 1/2 moa at 400 from a 55gr bullet in 15mph crosswind? Gonna have to throw the BS flag on that.  Attached Filestill have the target. can only shoot steel now at that range so no more targets . Also as mentioned by someone before it is very hard to hear or see steel swing past 300 or so with 55 grain bullets. |
|
|
|
Posted: 4/9/2021 10:05:05 AM EDT
[#32]
Quote HistoryQuoted: Being an F Class FTR competitor, with .223, This is something a actually know about. 1st, use the longest barrel you can. Not as much for accuracy as for a complete powder burn 2nd, you need no less than 69gr bullets. And good ones at that. Light bullets will not retain enough energy to go 600yds. They drop like a rock! I got quite a surprise when I began measuring & weighing bullets. The worst of the lot was Sierra Match King. Length to Ogive varried up to .005", weight carried by 4 grains! Pure junk. The best? Berger VLD with Nosler Custom Comp close behind. Those 2 are very consistent in construction, but different designs. VLD just worked better in my Schilen barrel. Nosler was 69gr, Berger was 70gr. 3rd, no less than 1/8 twist. 1/7 is better in the wind. Mine is 1/7, 70gr bullet at 3000fps. It bucks the wind as best any .223 can. I tried 80gr & 90gr bullets as well, but in MY rifle, the 70's work the best. I know this info means you must hand load. If you can't, just buy the heaviest bullet you can. Again, a 20" 1/7 barrel will stabilize up to 90gr, but will shoot the 55's ok. I handload for uspsa but dont load anything other than 9mm on a LnL -- I assume I will have to get into it for 223, I've just never wanted to deal with it (not seems to be the time considering this ammo shortage is the real deal) I assume I will get hooked quick and will end up reloading, I was just trying to get away with maybe 400 yard shots with bulk ammo for now before deciding on getting serious or not -- F class is actually what I have my eye on with our new range going in thats finally within 20 minutes of me |
|
|
|
Posted: 4/9/2021 10:13:12 AM EDT
[#33]
Ok, thanks for the answers, but maybe I should reword it into 2 questions... (not that it matters but probably 18-20" barrel)
- If I plan on shooting bulk 55gr ammo 300 yards what twist should I get? - and if I plan on shooting heavier ~70ish grain what twist would I get? What I was really hoping for was something that would still be accurate with bulk 55gr at 250 yards (by accurate I just mean maybe 3 or so moa which is the size of the steel there) but still be "ideal" with heavier bullets at 400-500. I'm terrible at wording my posts, I'm usually sitting at my desk and something pops in my head and I post it, then read it later and am like wtf
|
|
|
|
Posted: 4/9/2021 10:16:32 AM EDT
[#34]
Quote HistoryQuoted: Ok, thanks for the answers, but maybe I should reword it into 2 questions... (not that it matters but probably 18-20" barrel) - If I plan on shooting bulk 55gr ammo 300 yards what twist should I get? - and if I plan on shooting heavier ~70ish grain what twist would I get? What I was really hoping for was something that would still be accurate with bulk 55gr at 250 yards (by accurate I just mean maybe 3 or so moa which is the size of the steel there) but still be "ideal" with heavier bullets at 400-500. I'm terrible at wording my posts, I'm usually sitting at my desk and something pops in my head and I post it, then read it later and am like wtf 1:8 or 1:7 |
|
|
|
Posted: 4/9/2021 10:33:36 AM EDT
[#35]
I cheat. I used BH 75 and 77 grs rounds out of my bushy varmiter upper when I was shooting at the steel targets at the 600-700 yrds back home.
The 1/9 does work for a wide range of bullet weights. It may or may not like some rounds out there. That's where you have fun shooting and find what that upper likes or dislikes. |
|
|
|
Posted: 4/9/2021 11:40:26 AM EDT
[#36]
Quoted: Ok, thanks for the answers, but maybe I should reword it into 2 questions... (not that it matters but probably 18-20" barrel) - If I plan on shooting bulk 55gr ammo 300 yards what twist should I get? - and if I plan on shooting heavier ~70ish grain what twist would I get? What I was really hoping for was something that would still be accurate with bulk 55gr at 250 yards (by accurate I just mean maybe 3 or so moa which is the size of the steel there) but still be "ideal" with heavier bullets at 400-500. I'm terrible at wording my posts, I'm usually sitting at my desk and something pops in my head and I post it, then read it later and am like wtf Any good 1:7 or 1:8 will do what you want. My standard answer is WOA because I know so many people personally that have had great luck with them. Just pick the length and weight you want https://www.whiteoakarmament.com/223-5-56-predator-1-8-twist-with-gas-manifold-875-16.html |
|
|
|
Posted: 4/9/2021 2:15:46 PM EDT
[#37]
Quote HistoryQuoted: Of course you can. But if the wind blows, well..... That is definitely an issue on small targets past 300 or so. The 75s and 77s will have half the wind drift. I stake a 6" steel flapper out at 250-300 yards pretty regularly and don't really have a problem hitting it with high quality factory 55gr ball or handloads - using irons or dots. You can't just rip off magazines at it, but it's not hard. All out of 1:7 or 1:8. There are very few reasons not to get 1:8 or 1:7 for anything 55gr and up. |
|
|
|
Posted: 4/9/2021 2:50:52 PM EDT
[#38]
You can stabilize and shoot 52, 53, and 55s very well out of 1:7 and 1:8 barrels.
I’ve shot bunches of little knots with these bullet weights in faster twist barrels. |
|
|
|
Posted: 4/9/2021 4:08:56 PM EDT
[#39]
Either 1/7 or 1/8 will do well from 55gr and up. Probably won't shoot the dinky 45gr stuff well though.
I just prefer 1/7 as I know I can (and have) shoot up to 90gr with it. My Schilen barrel just prefers the 70gr Berger VLD. The 80gr VLD did ok too but the 90gr was impossible to get a load for. |
|
|
|
Posted: 4/9/2021 4:15:15 PM EDT
[#40]
Quote HistoryQuoted: https://www.ar15.com/media/mediaFiles/140637/P1010001_JPG-1898288.JPG still have the target. can only shoot steel now at that range so no more targets . Also as mentioned by someone before it is very hard to hear or see steel swing past 300 or so with 55 grain bullets. The A Max is a good bullet. I used that bullet for groundhogs out to 400. I can see that group being possible, but in a 15mph crosswind? Naw. So why does the pic only show half the target? Somethings fishy. |
|
|
|
Posted: 4/9/2021 5:56:59 PM EDT
[#41]
OMG you guys are a tough crowd it was a very steady consistant wind. I also made five 2s in a round of golf
 Attached Fileonce when I was 16. are we going to doubt that also.  powder BTW is 24 grains of H 322. Do we need a pic of the HBAR RRA gun also?  Attached Filehere is pic of 75 BTHP grain load at 600 yards with 18 inch AR 15. 25 grains Varget and a 14x scope |
|
|
|
Posted: 4/9/2021 6:13:21 PM EDT
[#42]
Quote HistoryQuoted: Not trying to be an ass, but 1/2 moa at 400 from a 55gr bullet in 15mph crosswind? Gonna have to throw the BS flag on that. Quote HistoryQuoted: Quoted: In my first post in this thread I had mentioned that I have shot a 2 inch group at 400 yards with 55 grain flat base Hornady amax bullets. And by the way it was in a 15 mph crosswind. Not trying to be an ass, but 1/2 moa at 400 from a 55gr bullet in 15mph crosswind? Gonna have to throw the BS flag on that. |
|
|
|
Posted: 4/9/2021 6:23:20 PM EDT
[#43]
it was a good day indeed, shortly after that day the range converted to all steel gongs so hard to tell what groups are now with all the hits on targets. I now usually just shoot my 3 gun rig with 1-4 x scope and practice my holds with that gun. Very hard to hit gongs at 400 with 55 grain and 4x scope and total luck at 500 with that load and scope. That is with bulk 55 grain FMJ blasting bullets, and as pointed out before can barely even tell the gongs are moving at 400 with the 55 grain bullets.
 That gun is Wylde 1/8 twist but dosen't matter with the bulk bullets.The 191 with 7x at 600 yards is probably a better target with 14x scope and variable wind. |
|
|
|
Posted: 4/9/2021 7:41:25 PM EDT
[#44]
At your elevation close to sea level you will likely be better served by a 1:8. At 3000’ altitude I’ve hit 4 MOA steel consistently at 550 yds out of a 16” 1:9 with good 55 grain loads. But that’s zero wind, high contrast target, and available hold over visual reference points or adjusting clicks on irons or red dot. It’s a little easier with magnification and a hold over reticle. All this assumes a solid position, good trigger, and a spotter. 400 yds is palpably easier than 500+ particularly with any wind. In wind the advice to go with 69-77 grain bullets will help. A 1:8 should stabilize those fine out of an 18”. Even suppressed and using amplified muffs it’s hard to hear hits on steel past 500. A spotter behind you with a good magnified optic to spot trace will save a lot of wasted shots. A spotter who can make wind calls for you really makes a big difference.
|
|
|
|
Posted: 4/9/2021 11:09:17 PM EDT
[#45]
Yes, you can, with good handloads and a good barrel. Any of those twists will suffice but 1:7 with good ammo wil get you there for sure.
|
|
|
|
Posted: 4/9/2021 11:44:38 PM EDT
[#46]
Quoted: We have a new deep range and I was going to pick up a 18" upper to have some longer range fun but still plan on shooting bulk 55gr most of the time (steel inside 200-300 yards) I know 1:7 and 1:8 with heavier bullets are going to get me the best long range results, but I could still shoot 62gr I think with 1:9 Should I stick with a 1:9 or go to a 1:8? Will 1:8 be that much less accurate at 250 yards? With 1:8 (from what I understand) I could jump up to ~70gr if I ended up getting into longer range  Rock River Ar 15 practical accuracy tested at 567 yards w/ Black Hills 5.56 77 gr tmk 1-9 twist 567 yards w/Black Hills 77 gr. TMK- 5 shots. https://youtu.be/rQW2EBJhHS0 |
|
|
|
Posted: 4/10/2021 1:38:07 AM EDT
[#47]
Quote HistoryQuoted:  https://www.youtube.com/watch?v=rQW2EBJhHS01-9 twist 567 yards w/Black Hills 77 gr. TMK- 5 shots. https://youtu.be/rQW2EBJhHS0 |
|
|
|
Posted: 4/10/2021 7:32:31 AM EDT
[#48]
Quote HistoryQuoted: OMG you guys are a tough crowd it was a very steady consistant wind. I also made five 2s in a round of golfhttps://www.ar15.com/media/mediaFiles/140637/P1010002_JPG-1898758.JPG once when I was 16. are we going to doubt that also. powder BTW is 24 grains of H 322. Do we need a pic of the HBAR RRA gun also?https://www.ar15.com/media/mediaFiles/140637/191-7x_png-1898762.JPG Never seen a consistent 15 crosswind, but if that's your story I'll concede good shooting. My load was 25.4 Varget, 70gr Berger VLD. BTW, shooting birdie on a par 3 ain't that impressive ?? here is pic of 75 BTHP grain load at 600 yards with 18 inch AR 15. 25 grains Varget and a 14x scope |
|
|
|
Posted: 4/10/2021 7:55:57 AM EDT
[#49]
Quote HistoryQuoted: birded 4 par threes and an eagle on the 9th hole par 4. Shot 31 on the front nine with 4 twos and 40 on the back nine. regulation golf course not a bullshit par three. BTW I am a retired golf pro and now shoot at least three times a week every week and two matches a month. Hence all the shooting experience
|
|
|
|
Posted: 4/10/2021 8:10:16 AM EDT
[#50]
Quote HistoryQuoted: Ok, thanks for the answers, but maybe I should reword it into 2 questions... (not that it matters but probably 18-20" barrel) - If I plan on shooting bulk 55gr ammo 300 yards what twist should I get? - and if I plan on shooting heavier ~70ish grain what twist would I get? What I was really hoping for was something that would still be accurate with bulk 55gr at 250 yards (by accurate I just mean maybe 3 or so moa which is the size of the steel there) but still be "ideal" with heavier bullets at 400-500. I'm terrible at wording my posts, I'm usually sitting at my desk and something pops in my head and I post it, then read it later and am like wtf In order of best choice for an AR15. 1/7 1/8 1/9 1/12 1/14 |
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
