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300 Blackout Master Thread (Page 67 of 77)
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Link Posted: 12/28/2020 11:38:19 PM EDT
[#1]
Link Posted: 12/29/2020 12:56:33 AM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By MG66:
I'm having some trouble with my 168gr BTHP loads.  Hopefully someone can point me in the right direction.

I made up 5 rounds of each charge weight of Lil Gun: 14.0, 14.3, 14.6, 14.9, 15.2.  All of the rounds chambered and shot when using the charging handle for the first round, but NONE of them picked up the next round from the magazine and chambered.  Not once, not any powder weight.

Other details: 16 inch barrel, don't know details of the gas system, COL 2.1", CCI SR primers, a variety of brass.  I'm using Magpul 300 BLK mags.

I also shot some Remington 155gr factory ammo which worked perfectly.  My 125 gr Nosler Ballistic Tips also work and cycle fine with 19.0 gr Lil Gun under them.

What's happening?  It seems something fundamental, which it probably is, but I'm stumped.

Thanks for your advice and enlightenment.

Are you using ordinary 5.56 magazines?
View Quote

Link Posted: 12/29/2020 12:59:32 AM EDT
[#3]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Er_Mah_Gerd:

I would just like to distance myself from anything that could cause an issue when I’m dicking with other things like not seating bullets to “published” length (.250” at bump) creeps me out.

I’m not chasing speed but would like a tad hotter round for deer. Plinking as cheap on powder as possible

The Barnes tac-tx is what I plan on using. But I think I can load that to published depth as it was “made” to work in gas guns?
Thanks for the help
View Quote



Easiest way to judge whether you're getting near the maximum is two things.

If you have a mondo gouge in your case-rim from the extractor, your load is hot.

If the gun is throwing brass forward, your load is probably hot.
Link Posted: 12/29/2020 11:09:50 AM EDT
[#4]
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Originally Posted By W_E_G:

View Quote View All Quotes
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By W_E_G:
Originally Posted By MG66:
I'm having some trouble with my 168gr BTHP loads.  Hopefully someone can point me in the right direction.

I made up 5 rounds of each charge weight of Lil Gun: 14.0, 14.3, 14.6, 14.9, 15.2.  All of the rounds chambered and shot when using the charging handle for the first round, but NONE of them picked up the next round from the magazine and chambered.  Not once, not any powder weight.

Other details: 16 inch barrel, don't know details of the gas system, COL 2.1", CCI SR primers, a variety of brass.  I'm using Magpul 300 BLK mags.

I also shot some Remington 155gr factory ammo which worked perfectly.  My 125 gr Nosler Ballistic Tips also work and cycle fine with 19.0 gr Lil Gun under them.

What's happening?  It seems something fundamental, which it probably is, but I'm stumped.

Thanks for your advice and enlightenment.

Are you using ordinary 5.56 magazines?




No.  I'm using 300BLK Magpul mags.

The COL was 2.20" (not 2.1 as stated above).  Putting the .250" mark at the bump on the mag lowers COL to 2.15.  I"m not sure if that's necessary for 300BLK mags or not.

I'll try some at that COL.  Also, the factory ammo was 147 (also incorrectly remembered/stated in my OP).

Link Posted: 12/29/2020 11:17:21 AM EDT
[#5]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By MG66:I'm having some trouble with my 168gr BTHP loads.  Hopefully someone can point me in the right direction.

I made up 5 rounds of each charge weight of Lil Gun: 14.0, 14.3, 14.6, 14.9, 15.2.  All of the rounds chambered and shot when using the charging handle for the first round, but NONE of them picked up the next round from the magazine and chambered.  Not once, not any powder weight.

Other details: 16 inch barrel, don't know details of the gas system, COL 2.1", CCI SR primers, a variety of brass.  I'm using Magpul 300 BLK mags.

I also shot some Remington 155gr factory ammo which worked perfectly.  My 125 gr Nosler Ballistic Tips also work and cycle fine with 19.0 gr Lil Gun under them.

What's happening?  It seems something fundamental, which it probably is, but I'm stumped.

Thanks for your advice and enlightenment.
View Quote

Your charge weight are within the 13.9-15.3 range (Hodgdon), but your COAL is a bit low. They recommend 2.23” for that bullet.
Link Posted: 12/29/2020 11:43:15 AM EDT
[Last Edit: MG66] [#6]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By NeverBlue:

Your charge weight are within the 13.9-15.3 range (Hodgdon), but your COAL is a bit low. They recommend 2.23” for that bullet.
View Quote View All Quotes
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By NeverBlue:
Originally Posted By MG66:I'm having some trouble with my 168gr BTHP loads.  Hopefully someone can point me in the right direction.

I made up 5 rounds of each charge weight of Lil Gun: 14.0, 14.3, 14.6, 14.9, 15.2.  All of the rounds chambered and shot when using the charging handle for the first round, but NONE of them picked up the next round from the magazine and chambered.  Not once, not any powder weight.

Other details: 16 inch barrel, don't know details of the gas system, COL 2.1", CCI SR primers, a variety of brass.  I'm using Magpul 300 BLK mags.

I also shot some Remington 155gr factory ammo which worked perfectly.  My 125 gr Nosler Ballistic Tips also work and cycle fine with 19.0 gr Lil Gun under them.

What's happening?  It seems something fundamental, which it probably is, but I'm stumped.

Thanks for your advice and enlightenment.

Your charge weight are within the 13.9-15.3 range (Hodgdon), but your COAL is a bit low. They recommend 2.23” for that bullet.



I saw that.  I also saw Sierra lists COL as 2.18", so I kinda split the difference.  Dunno.

I'll try some at the COL that puts the magic diameter at the magic spot, and some at 2.23" and see what happens.  I still struggle to believe that's the issue, but I'm obviously missing something and this could be it.  The rounds stayed in the 300BLK Magpul mag like they were set in cement.

Link Posted: 12/29/2020 6:37:07 PM EDT
[#7]
@MG66

Have you tried a different bolt carrier and bolt?

Is your bolt moving at all on firing?

Did you install your own gas block?

Is the gas turned off?

Is the gas block misaligned?
Link Posted: 1/2/2021 1:01:54 PM EDT
[#8]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By W_E_G:
@MG66

Have you tried a different bolt carrier and bolt?

Is your bolt moving at all on firing?

Did you install your own gas block?

Is the gas turned off?

Is the gas block misaligned?
View Quote



Update -

If I am measuring the gas system correctly (I was surprised how little this is demonstrated online; I guess it's assumed everyone knows), I have a carbine length gas tube.

I loaded up some more rounds with 14.9gr Lil Gun from a new container (key point), set at 2.23" COL, and all rounds fed.  The bolt did not lock back after the last round, but that was the only issue.


Thanks for the input and advice, all.


Link Posted: 1/9/2021 4:30:14 PM EDT
[#9]
Are my reloads weak?

Using Speer 125gr TNT, IMR4227, 2.1" OAL.

Noveske 8.3" barrel

16.8gr, 1685FPS
17.1gr, 1730ish
17.6gr, 1780ish

Just to compare, I brought an old box of Hornady 110gr.
2235FPS!

Was feeling pretty good about my reloads. All loads locked the bolt back on an empty mag in both the Noveske and Sig Rattler on the low gas setting. Then I compared to the Hornady and it was much higher than I thought it would be.

Bump em up? Good enough?

Link Posted: 1/9/2021 7:41:35 PM EDT
[#10]
For those that are using a mini chop saw and a jig to convert 223, which jig is considered the better unit? Looking around I see some 3D printed jigs now, along with the aluminum style. With the price and availability of 300 BLK, I think I need to start converting brass.

Thanks.
Link Posted: 1/9/2021 9:11:38 PM EDT
[#11]
I’ve been loading for and shooting my AR in 300 BLK the last few weeks, including varmint hunting last night. My son and I took my AR in .223 to the range today and shot a few rounds. I was amazed how much more blast and noise it had compared to the 300 BLK. I much prefer the .300 BLK for potential home defense and short range hunting.
Link Posted: 1/9/2021 9:31:35 PM EDT
[Last Edit: Er_Mah_Gerd] [#12]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By coltc:
Are my reloads weak?

Using Speer 125gr TNT, IMR4227, 2.1" OAL.

Noveske 8.3" barrel

16.8gr, 1685FPS
17.1gr, 1730ish
17.6gr, 1780ish

Just to compare, I brought an old box of Hornady 110gr.
2235FPS!

Was feeling pretty good about my reloads. All loads locked the bolt back on an empty mag in both the Noveske and Sig Rattler on the low gas setting. Then I compared to the Hornady and it was much higher than I thought it would be.

Bump em up? Good enough?

View Quote

I think it depends on what you are looking for. I am looking for cheap plinking ammo (yeah, right these days) so I want to use as little powder per round that still functions. Maybe it will cut down on brass trimming too?

If you are looking to clone factory ammo, bump them up. (Safely)

Just cheap plinking, leave or lower depending.

Just accuracy, load to that velocity.

But I am fairly new to this so...
Link Posted: 1/9/2021 10:03:12 PM EDT
[Last Edit: dryflash3] [#13]
I found 4 300blk barrels in a moving box today. Look like BCM chrome lined and a couple ballistic advantage. Complete with adjustable gas blocks and gas tubes. Only problem is that I don't remember ever ordering them or why I might have them. <removed> no trades allowed in forum posts. Probably not your intention, if you were thinking out loud. dryflash3
Link Posted: 1/11/2021 4:19:39 AM EDT
[Last Edit: VegasSaint] [#14]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By W_E_G:
I only use CFEBLK with 150's to load subs.

This load works in my 8.5" Palmetto upper just dandy.

https://www.AR15.Com/media/mediaFiles/105614/150_subsonic_jpg-1743772.JPG
View Quote


Loaded 20 of these and shot them today. Got some interesting results. Three or four were at 830fps and the rest around 1100fps. Loaded with mixed headstamp, S&B Primers on a Dillon 550. Might need to adjust my powder measure as I can't see mixed headstamps giving me that much variance? Upper was also 8.5" for reference.
Link Posted: 1/13/2021 5:28:03 PM EDT
[#15]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By VegasSaint:


Loaded 20 of these and shot them today. Got some interesting results. Three or four were at 830fps and the rest around 1100fps. Loaded with mixed headstamp, S&B Primers on a Dillon 550. Might need to adjust my powder measure as I can't see mixed headstamps giving me that much variance? Upper was also 8.5" for reference.
View Quote



How many rounds total fired over the chronograph?

What kind of chronograph?

Different case capacity wouldn't account for that difference by any stretch.
Link Posted: 1/14/2021 4:46:36 AM EDT
[#16]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By W_E_G:



How many rounds total fired over the chronograph? 20 rounds

What kind of chronograph? Pro Chrono Digital

Different case capacity wouldn't account for that difference by any stretch.
View Quote



In the quote. The only thing that makes sense is a light drop from the Dillon powder measure.
Link Posted: 1/14/2021 9:37:51 AM EDT
[#17]
How close was chronograph to muzzle?
Link Posted: 1/15/2021 2:58:48 AM EDT
[#18]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By W_E_G:
How close was chronograph to muzzle?
View Quote


About 10 feet, my usual distance.
Link Posted: 1/15/2021 3:21:50 AM EDT
[#19]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By VegasSaint:


About 10 feet, my usual distance.
View Quote


You need to move it back. You could be measuring the exhaust blast.
Link Posted: 1/15/2021 4:57:24 AM EDT
[#20]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Recoil737:


You need to move it back. You could be measuring the exhaust blast.
View Quote


Can't say I have had that problem before but I'm loading some more tomorrow so I'll try again at 15 feet.
Link Posted: 1/18/2021 3:51:05 AM EDT
[#21]
So update; moved the chrono back to 15 feet with the same results. Interesting part is my Dillon powder measure did need adjustment as the bar wasn't going all the way in flush like it is supposed to at the top of the stroke. Next move is to hand measure the powder to eliminate the chrono being the issue. No matter the lower speeds, the rounds cycle nicely.
Link Posted: 2/4/2021 12:55:52 AM EDT
[#22]
Finally shot my first subsonic reloads. Using CFE BLK (this powder really gets affected by static and is a real pain in the ass to clean up) and 194 gr Lehigh.

Has anybody tried a seating depth of 2.26 with subs? I tried it today and it seemed fine. 12 gr got me about 1075 fps. Going to load up a ladder and see what it likes. This is out of a 6.5" barrel.
Link Posted: 2/4/2021 1:12:53 AM EDT
[#23]
Link Posted: 2/4/2021 7:05:27 AM EDT
[#24]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By dryflash3:
Static is not the powders fault.

https://i.imgur.com/xKVA7wml.jpg

Either of these will kill the static in your PM hopper.
View Quote
Tried the sheets, didn't work too well inside the autotrickler.
Link Posted: 2/4/2021 2:34:21 PM EDT
[#25]
Link Posted: 2/4/2021 4:53:50 PM EDT
[#26]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By dryflash3:
Then get some graphite, it's always 100% effective.

Most folks have dryer sheets laying around, so good for first try.

You have to go find and buy the graphite. Google to find.
View Quote
https://www.amazon.com/Fasco-Epoxies-Graphite-Powder-Quart/dp/B076H7QVHF/ref=mp_s_a_1_4?dchild=1&keywords=graphite&qid=1612471855&sr=8-4

Something like this?
Link Posted: 2/4/2021 4:55:56 PM EDT
[#27]
Link Posted: 2/4/2021 5:54:48 PM EDT
[#28]
Discussion ForumsJump to Quoted PostQuote History

No, that's a paste...you want dry graphite powder and shake it around inside the powder measure.  I've never had issues with running dryer sheets thru the tube but OP might be in a more static environment.
Link Posted: 2/5/2021 12:33:44 AM EDT
[#29]
Link Posted: 2/5/2021 10:00:06 AM EDT
[#30]
Going to start focusing on reloading large quantities of 300 blk with everything going on. Considering cast bullets for sub loads. Can you shoot cast through an non serviceable suppressor? I think I read somewhere you can if coated. Does anybody have any insight on if that is true and what bullet molds work well? Also how to coat them.
Link Posted: 2/5/2021 12:26:08 PM EDT
[#31]
If you shoot cast lead through a suppressor, you will fill the suppressor with lead.

Think about how you want to deal with that.
Link Posted: 2/5/2021 2:08:31 PM EDT
[#32]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By W_E_G:
If you shoot cast lead through a suppressor, you will fill the suppressor with lead.

Think about how you want to deal with that.
View Quote

Obviously I don't want to do that. That's why I asked that specific question.
Link Posted: 2/5/2021 8:07:36 PM EDT
[Last Edit: Muricha] [#33]
No personal experience but it was my understanding if using the proper hardness material with a gas check and powder coating was suppressor friendly.

Again, just a he said she said cousins uncle kind of thing.
Interested to hear from a pro.
???
Link Posted: 2/12/2021 8:42:11 PM EDT
[Last Edit: ALASKANFIRE] [#34]
Anyone know of a good compilation of bolt action/single shot not semi auto loads? I knew most of the available info would be for AR's but I thought by now there would be a little more data out there. The new Hodgdon and Nosler manual don't differentiate so I usually assume it's a semi load. My thought being there have to be a few powders out there which are noticeably quieter but maybe won't work in AR's but maybe that's wrong too. There's a thread on 300 black talk that I have been digging through but I am still looking.

I've been on a mission to finally make a list of what I have on hand so I can continue to look for stuff when it is less crazy. Hopefully the S&B subs I bought shoot well in my Howa because I have 1000 of them. I was seriously considering trying to offload half of it to buy components but unless it doesn't work well I think the new plan is to keep all the ammo and buy more components.
Link Posted: 2/12/2021 9:11:16 PM EDT
[#35]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By UndrGrndPrdcts:
Going to start focusing on reloading large quantities of 300 blk with everything going on. Considering cast bullets for sub loads. Can you shoot cast through an non serviceable suppressor? I think I read somewhere you can if coated. Does anybody have any insight on if that is true and what bullet molds work well? Also how to coat them.
View Quote

Coat it with powder coat and keep them moving subsonic, you should be ok.
Link Posted: 2/13/2021 9:32:25 AM EDT
[#36]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ALASKANFIRE:
Anyone know of a good compilation of bolt action/single shot not semi auto loads? I knew most of the available info would be for AR's but I thought by now there would be a little more data out there. The new Hodgdon and Nosler manual don't differentiate so I usually assume it's a semi load. My thought being there have to be a few powders out there which are noticeably quieter but maybe won't work in AR's but maybe that's wrong too. There's a thread on 300 black talk that I have been digging through but I am still looking.

I've been on a mission to finally make a list of what I have on hand so I can continue to look for stuff when it is less crazy. Hopefully the S&B subs I bought shoot well in my Howa because I have 1000 of them. I was seriously considering trying to offload half of it to buy components but unless it doesn't work well I think the new plan is to keep all the ammo and buy more components.
View Quote

Earlier in this thread someone listed a trailboss cat sneeze load for bolt guns.  I think it was 6 grains.  With sub loads you start higher and work down hopefully stopping before a squib.  Thats all there is to it.  I shoot 10.3 grains cfe black and it cycles my ar pistol and is super quiet in my handi rifle as well.
Link Posted: 2/13/2021 3:26:02 PM EDT
[#37]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By chucku:

Earlier in this thread someone listed a trailboss cat sneeze load for bolt guns.  I think it was 6 grains.  With sub loads you start higher and work down hopefully stopping before a squib.  Thats all there is to it.  I shoot 10.3 grains cfe black and it cycles my ar pistol and is super quiet in my handi rifle as well.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By chucku:
Originally Posted By ALASKANFIRE:
Anyone know of a good compilation of bolt action/single shot not semi auto loads? I knew most of the available info would be for AR's but I thought by now there would be a little more data out there. The new Hodgdon and Nosler manual don't differentiate so I usually assume it's a semi load. My thought being there have to be a few powders out there which are noticeably quieter but maybe won't work in AR's but maybe that's wrong too. There's a thread on 300 black talk that I have been digging through but I am still looking.

I've been on a mission to finally make a list of what I have on hand so I can continue to look for stuff when it is less crazy. Hopefully the S&B subs I bought shoot well in my Howa because I have 1000 of them. I was seriously considering trying to offload half of it to buy components but unless it doesn't work well I think the new plan is to keep all the ammo and buy more components.

Earlier in this thread someone listed a trailboss cat sneeze load for bolt guns.  I think it was 6 grains.  With sub loads you start higher and work down hopefully stopping before a squib.  Thats all there is to it.  I shoot 10.3 grains cfe black and it cycles my ar pistol and is super quiet in my handi rifle as well.

I should have specified heavy bullets as well. I actually have some trailboss but most of the loads I've seen are for light bullets because it fills up the case. I have some 125's but I wanted to load them in 308 for plinking loads.
Link Posted: 2/13/2021 10:41:59 PM EDT
[#38]
I run 220 g with the CFE listed. 10.3 g.  I load 147g M80 as subs with about the same charge.  They are quiet both semi and single.  I didnt bother to try even reduced loads as this load is quiet!!!  Im running them thru a trash panda which does a great job with .300 blk,  I havent tried lighter bullets for subs.
Link Posted: 2/13/2021 11:02:27 PM EDT
[#39]
Link Posted: 2/14/2021 9:08:27 AM EDT
[#40]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By W_E_G:
I've been working on a SUB-SONIC load for the M80 bullet.

I really like the CFE/BLK powder for 200-grain subsonics. Truly the ideal powder for the 200-grain bullets because of loading density.

Anyhow, I decided to pull a load out of my ass (with the help of Quickload) to try to come up with a "plinking" load for the M80 bullets.
I shot several rounds of my made-up load yesterday over the chronograph.
Loading density is less than ideal (~76%). But everything functioned just fine in the 8" Palmetto upper.
Velocity was lower than I had hoped, but I didn't miss it by too much. I'd prefer velocity to be around 1050 fps.
I did not shoot for accuracy. I can only vouch that the load shoots minute-of-not-hitting-the-chronograph.
I think I'll try 14.0 grains next time.
View Quote
This is really interesting to me as my plinking 300 BO load is:
  • 150g Lee 312-155 2R cast bullet. Gas checked and powder coated
  • 14.8g of Lil Gun. Note: this is down near the starting charge for a 150g bullet. As I went up in charge, accuracy got progressively worse.
  • Yields about 1,825 FPS and great accuracy out of a 1:7 bbl.
Questions:
  • I've never strayed out of published loads. This is roughly 4g below start. Is there any concerns with detonation or other issues?
  • Have you had a chance to test this for accuracy?
I have been thinking of getting a 200ish grain mold for subs, but haven't been able to land on one. If I can make a sub load with this powder, that will simplify things.

thx


Link Posted: 2/14/2021 9:16:21 AM EDT
[#41]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By UndrGrndPrdcts:
Going to start focusing on reloading large quantities of 300 blk with everything going on. Considering cast bullets for sub loads. Can you shoot cast through an non serviceable suppressor? I think I read somewhere you can if coated. Does anybody have any insight on if that is true and what bullet molds work well? Also how to coat them.
View Quote
I have a non-servicable 9mm can rated for sub-guns. It's not a pistol can. Shoot it on my 8.5" and 16" 9mm uppers all the time. Have thousands and thousands of rounds through it of home case powder coated bullets.

Never any issues.

Does build up with carbon from time to time so I just throw it in the sonic tank.
Link Posted: 2/14/2021 10:28:31 AM EDT
[#42]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Landshark9025:
This is really interesting to me as my plinking 300 BO load is:
  • 150g Lee 312-155 2R cast bullet. Gas checked and powder coated
  • 14.8g of Lil Gun. Note: this is down near the starting charge for a 150g bullet. As I went up in charge, accuracy got progressively worse.
  • Yields about 1,825 FPS and great accuracy out of a 1:7 bbl.
Questions:
  • I've never strayed out of published loads. This is roughly 4g below start. Is there any concerns with detonation or other issues?
  • Have you had a chance to test this for accuracy?
I have been thinking of getting a 200ish grain mold for subs, but haven't been able to land on one. If I can make a sub load with this powder, that will simplify things.

thx


View Quote


I personally have no concerns about detonation.

Seriously, where have we heard of “detonation” with rifle loads using 70%+ loading density?

No, I have not tested the specific load for accuracy.

I HAVE Shot a lot of slow bullets. When you go that slow, you will get significant variation in velocity. I’m talking 200 FPS variation. So, don’t go so slow that you stick a bullet in the barrel. And be cognizant that significant variation in velocity will limit the distance you can correctly predict trajectory.
Link Posted: 2/14/2021 3:15:53 PM EDT
[#43]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By W_E_G:


I personally have no concerns about detonation.

Seriously, where have we heard of "detonation" with rifle loads using 70%+ loading density?
I've not. However, I've also shied away from any non-published loads.

No, I have not tested the specific load for accuracy.
OK. I MIGHT give this a try just to see if it has potential. If I end up not being able to keep it on a 6" plate at 100 yards, I'm not real interested.

I HAVE Shot a lot of slow bullets. When you go that slow, you will get significant variation in velocity. I'm talking 200 FPS variation. So, don't go so slow that you stick a bullet in the barrel. And be cognizant that significant variation in velocity will limit the distance you can correctly predict trajectory.
Yeah, if one is coming out at 950 and the next is coming out at 750, I'd imagine that'll make a significant drop at 100. Based on the calculators on Hornady's site, a 50 yard zero with a muzzle velocity of 750 and 950 yields a difference of 6" at 100 yards. This is sounding less and less like a good idea.
View Quote
Thx for the input.
Link Posted: 2/27/2021 8:51:29 PM EDT
[#44]
For those that convert brass using the Harbor Freight mini saw, is there a better a replacement blade than the ones HF sell?

Thanks.
Link Posted: 3/9/2021 3:42:00 AM EDT
[#45]
I have some 240gr Gallant FP coated projectiles I want to load up. I haven’t been able to find much data out there, so thought I would ask here.

My starting load in mind is 10gr SW Blackout

Also have lil’gun and h110 on hand as well.

Thank you!
Link Posted: 3/9/2021 3:50:08 AM EDT
[#46]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Dogue:

No, that's a paste...you want dry graphite powder and shake it around inside the powder measure.  I've never had issues with running dryer sheets thru the tube but OP might be in a more static environment.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Dogue:

No, that's a paste...you want dry graphite powder and shake it around inside the powder measure.  I've never had issues with running dryer sheets thru the tube but OP might be in a more static environment.

If someone wants a bunch of it or just want to look locally, graphite powder is usually available at farm supply stores. It's used as a seed lubricant when planting.
Link Posted: 3/9/2021 10:40:57 AM EDT
[#47]
I got a cutoff wheel and put that on. Had to remove the guard to start with since it is larger though.
Link Posted: 3/20/2021 12:04:40 PM EDT
[#48]
For the .25 OGive trick for seating bullets for the mag.  Can a 223/556 go/no chamber case gauge be a way to cheat on this?
Link Posted: 3/20/2021 2:55:51 PM EDT
[#49]
Link Posted: 3/20/2021 3:08:59 PM EDT
[Last Edit: LuxorDeathbed] [#50]
I needed a 223/556 chamber checker anyways and bought from midway.  See how well it works out.  Berrys bullets 220 gr at 2.300 OAL that gavintoobe uses bind up in AR mags.  Plastic and steel.  Need to try Berrys recommended length of 2.150
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300 Blackout Master Thread (Page 67 of 77)
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