  | I need to push a 180g 30cal over 4000fps what are my options |
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07-09-2010, 12:33 PM
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Re: I need to push a 180g 30cal over 4000fps what are my options
Quote:
Originally Posted by LouBoyd
I haven't tried a fast twist 50 BMG but it sounds like a fun project. I've shot 55 grain 224 bullets at over 4250 FPS in sabots from a 10" twist 300 Win Mag. With the larger bore barrel life is much improved.
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What kind of accuracy did you experience with the sabots?
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07-09-2010, 09:48 PM
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Re: I need to push a 180g 30cal over 4000fps what are my options
30 caliber, 180 grain @ 4000 fps, I'll believe it when someone's been able to do it. Enjoyable and interesting read.
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07-09-2010, 09:59 PM
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Re: I need to push a 180g 30cal over 4000fps what are my options
Quote:
Originally Posted by Chas1
30 caliber, 180 grain @ 4000 fps, I'll believe it when someone's been able to do it. Enjoyable and interesting read.
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Careful, I believe you said close to the same thing when I stated that I wanted to run a 130g out of a 6.5X47 lap imp at 3000fps with 45g of powder. And it happened with no trouble. Don't scoff, it can make you look silly.
Steve
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07-09-2010, 10:11 PM
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Re: I need to push a 180g 30cal over 4000fps what are my options
Steve, there was no mocking or ridicule in my post so not to worry about scoffing. Didn't say nor am I saying it can't be done sometime in the future. Just a statement of fact. That when it happens I'll believe it. Hope somebody does it soon. 
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07-09-2010, 10:51 PM
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Re: I need to push a 180g 30cal over 4000fps what are my options
Tell ya Dad to neck down his THERMOS JUG and then buy stock in Kreiger/Border/Douglas barrels!!
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07-09-2010, 11:10 PM
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Re: I need to push a 180g 30cal over 4000fps what are my options
Quote:
Originally Posted by phorwath
What kind of accuracy did you experience with the sabots?
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I was using the 55 grain saboted 300 WM to test the ability of small arms bullets to penetrate armor plate to be used on an experimental armored car. The armor being tested was a 6" x 18" x 1/2" plate of Heflin "Armor Gard". I had no trouble hitting the plate at 25 yards but I did not test it further for accuracy. I doubt it would win any benchrest matches. The little jacketed lead bullet left a hole though the armor by shearing out a 3/8" ragged cylinder of the armor which still had enough energy to be dangerous, but only a trace of the bullet itself penetrated the armor.
Last edited by LouBoyd; 07-09-2010 at 11:23 PM..
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07-09-2010, 11:48 PM
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Platinum Member
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Re: I need to push a 180g 30cal over 4000fps what are my options
Quote:
Originally Posted by LouBoyd
The little jacketed lead bullet left a hole though the armor by shearing out a 3/8" ragged cylinder of the armor which still had enough energy to be dangerous, but only a trace of the bullet itself penetrated the armor.
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Dang! I guess it's true that velocity plays a big role in bullets ability to penetrate steel. More so than bullet weight. I've read and heard over the years that the speed burns/torches through the steel. But I wouldn't have bet on a 55 grain bullet blowing through 1/2" armor resistant steel.
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