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Post by crippledeagle on May 11, 2012 20:46:53 GMT -8
I got an email today from Missouri Bullet Company who is starting to make up bullets intended to be loaded in 300 AAC Blackout rounds. Has anyone used a similar bullet? Will Blackhole's rifling stabilize a lead bullet? These bullets are 245 grain bullets and long. Missouri Bullet Company puts out very high quality bullets and is swamped most times with orders. I've never has a single problem with any of their product so I imagine the 300 Blackout bullet will be a good one.
Sounds as if this will be a cheaper alternative to buying heavy copper coated bullets for sub sonic loads.
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Post by ballardw on May 11, 2012 22:18:32 GMT -8
I would be careful about putting any bare lead bullet through a barrel with a gas port due to possibility of getting lead in the gas system.
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Post by sten668 on May 3, 2013 8:00:42 GMT -8
I shoot cast bullets in my AR with no problem. I have not shot them in a BHW barrel, so don't know how they would work in the poly rifling.
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Post by mefunkymxw on Sept 24, 2013 3:50:38 GMT -8
i was wondering the same thing regarding exsessive pressure and polygonal rifling. I know that glock recommends against use of lead bullets in their factory barrels, and given the fact that you can load 300 blk up to 55 kpsi i thought it might cause some issues.
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Post by GLSHOOTER on Sept 24, 2013 6:24:23 GMT -8
i was wondering the same thing regarding exsessive pressure and polygonal rifling. I know that glock recommends against use of lead bullets in their factory barrels, and given the fact that you can load 300 blk up to 55 kpsi i thought it might cause some issues. Glock rifling is not the same as the BHW true poly rifling. Glocks will build up lead raising pressure. I seriously doubt that it would build in one of these. I will chat with Carl about it. Glocks blow up because of pure and simple laziness. Pressure has nothing to do with it. Velocity, barrel smoothness and bullet hardness are the big factors. We shoot BHW chamberings higher than this routinely. The 204, 20 Practical, 6X68, 6.8 all run that high. Subsonic is fun but without an adjustable gas block that many refuse to buy the Jeckle and Hyde issue arises. Greg |
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djmfl
Senior Member
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Post by djmfl on Sept 24, 2013 13:31:48 GMT -8
I never saw the need for an adjustable gas block until Greg insisted that I allow George, AT BTE, be allowed to separate me from some of my hard earned cash. I have them on both of my 264lbc builds now and they are truly worth every penny. Shooting subsonic rounds is fun but without an adjustable gas block it could be challenging instead of enjoyable. I agree with Greg on that one!
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Post by GLSHOOTER on Sept 24, 2013 15:39:09 GMT -8
The word is you can shoot lead but make darn sure you clean it frequently as in around 100 rounds. If you do post up some results as I am interested from an academic stand point. I like to go fast and lead is not that avenue for me.  Greg |
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Post by mefunkymxw on Sept 25, 2013 6:52:18 GMT -8
i was wondering the same thing regarding exsessive pressure and polygonal rifling. I know that glock recommends against use of lead bullets in their factory barrels, and given the fact that you can load 300 blk up to 55 kpsi i thought it might cause some issues. Glock rifling is not the same as the BHW true poly rifling. Glocks will build up lead raising pressure. I seriously doubt that it would build in one of these. I will chat with Carl about it. Glocks blow up because of pure and simple laziness. Pressure has nothing to do with it. Velocity, barrel smoothness and bullet hardness are the big factors. We shoot BHW chamberings higher than this routinely. The 204, 20 Practical, 6X68, 6.8 all run that high. Subsonic is fun but without an adjustable gas block that many refuse to buy the Jeckle and Hyde issue arises. Greg i wouldnt be worried about the barrels themselves, i would be more concerned with the effect of overpressure on the case (blown primers, etc). |
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Post by GLSHOOTER on Sept 25, 2013 8:33:15 GMT -8
Not going to happen unless you fail in the maintenance area. Glocks blow because of lead buildup and poor case support. I know that they have beefed up the 40 case in manufacturing thanks to the KABOOM factor.
Shoot the lead. Do your due diligence and have fun. After all why would a BHW barrel have more issues than a Shilen or an Obermyer? They are subject to the laws of physics just like the rest. They are special in performance but nuts and bolts reality is they are all cod.
Greg
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Post by mefunkymxw on Sept 26, 2013 11:33:53 GMT -8
Not going to happen unless you fail in the maintenance area. Glocks blow because of lead buildup and poor case support. I know that they have beefed up the 40 case in manufacturing thanks to the KABOOM factor. Shoot the lead. Do your due diligence and have fun. After all why would a BHW barrel have more issues than a Shilen or an Obermyer? They are subject to the laws of physics just like the rest. They are special in performance but nuts and bolts reality is they are all cod. Greg the case support thing was resolved with Gen 2 glocks years ago... i think every caliber's chamber is now fully supported since gen 3. lead buildup could still be an issue though.
went with a YHM traditional rifled 300blk barrel... it was in stock. |
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Post by GLSHOOTER on Sept 26, 2013 13:57:24 GMT -8
Not going to happen unless you fail in the maintenance area. Glocks blow because of lead buildup and poor case support. I know that they have beefed up the 40 case in manufacturing thanks to the KABOOM factor. Shoot the lead. Do your due diligence and have fun. After all why would a BHW barrel have more issues than a Shilen or an Obermyer? They are subject to the laws of physics just like the rest. They are special in performance but nuts and bolts reality is they are all cod. Greg the case support thing was resolved with Gen 2 glocks years ago... i think every caliber's chamber is now fully supported since gen 3. lead buildup could still be an issue though.
went with a YHM traditional rifled 300blk barrel... it was in stock.Guess which ones the tax payers bought for me to shoot? LOL Let us know how that puppy does with some lead. It will be educational for all of us. Did you call BHW direct about a barrel?? Carl mentioned the other day that he had quite a few 300 BO's chambered up in the shop. I don't know if those were finished or just rifled and chambered. Greg |
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Post by dolphins on Jul 6, 2014 20:06:29 GMT -8
Folks,
Any range reports on the heavy Lead bullets in the BHW barrel?
I'm especially interested in whether the 8.5 twist was able to stabilize the 245 gr. bullet -> thats might heavy for that twist.
Any reports on other heavy lead bullets? (ie. 200-225grainers)
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Deleted
Deleted Member
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Post by Deleted on Jul 7, 2014 5:17:25 GMT -8
I know of a few people shooting lead bullets using a Black Hole barrel. They are having good success with them. I am not sure of the weight. IIRC they were 220 grains.
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Post by wfa on Mar 12, 2015 13:32:28 GMT -8
Still waiting for my BHW 300 BLK barrel (Shot Show discount  , 18" barrel), so I have been working on some subsonic loads with the MBC 245gr lead bullet. I don't own a suppressor so my goal was "as quiet as a 22LR standard velocity". I've tried A1680 with limited success, but I found something better. IMR4198 is the answer in my two current 300 BLK rifles. Anywhere between 9.8 to 10.0 gr seems to work just fine. The 9.8gr numbers for a 10 round string: HI 1024 fps, LO 979 fps, AVG 1000 fps, ES 45 fps, SD 16. The weather hasn't cooperated enough to chronograph the 9.9 or 10.0 loads, but they don't "crack", at least not at 58F. Accuracy at 25 yards (my range is a swamp after all the rain/snow/ice - yes, in Alabama) was under 1" with a gusting 5-15mph cross wind. Bell the mouths lightly with a Lyman "M" die, no crimp, COAL 2.12. |
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, 18" barrel), so I have been working on some subsonic loads with the MBC 245gr lead bullet. I don't own a suppressor so my goal was "as quiet as a 22LR standard velocity". I've tried A1680 with limited success, but I found something better.