Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge.
Moderators: gds, bakerjw, renegade
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bangbangping
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by bangbangping » Thu Dec 13, 2018 12:34 am
rebel wrote:Super beta prostrate powder?...............

Got any load data for it with a 227 gr. M/88 bullet?

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bangbangping
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by bangbangping » Fri Dec 28, 2018 12:25 am

This might not look like much, but I'd wager it's the best 100 yard sub group anyone's ever shot with 303 British bullets and Data Powder 68.
rebel, any idea how to post it over there?
My grueling load workup

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180 grain .311 Pro Hunter sized to .309.
2 @ 9 grains DP68: 660 fps
2 @ 10 grains: 743 fps
2 @ 11 grains: 804 fps
2 @ 12 grains: 882 fps
(QuickLoad way underestimated these...I was expecting to be super @ 12. Each two-shot string was 2-4 inches...not promising.)
Ran home and loaded 8 each at 13.5 and 14 grains but didn't have time to set up the chrono again. Shot two @ 13.5, didn't look like they'd group, so moved to the 14 which were loud so I assume they went super. Adjusted the scope, shot one of the 13.5's that looked okay, then five on the card.
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rebel
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by rebel » Fri Dec 28, 2018 10:26 am
bangbangping wrote:
This might not look like much, but I'd wager it's the best 100 yard sub group anyone's ever shot with 303 British bullets and Data Powder 68.
rebel, any idea how to post it over there?
My grueling load workup

:
180 grain .311 Pro Hunter sized to .309.
2 @ 9 grains DP68: 660 fps
2 @ 10 grains: 743 fps
2 @ 11 grains: 804 fps
2 @ 12 grains: 882 fps
(QuickLoad way underestimated these...I was expecting to be super @ 12. Each two-shot string was 2-4 inches...not promising.)
Ran home and loaded 8 each at 13.5 and 14 grains but didn't have time to set up the chrono again. Shot two @ 13.5, didn't look like they'd group, so moved to the 14 which were loud so I assume they went super. Adjusted the scope, shot one of the 13.5's that looked okay, then five on the card.
Enter Slack from the site or from the link I provided. You can post pics and make comments there to Mr Revolver guys thread. To publish you need to contact LOB ( Forum Boss) and get on the authors list. Nice shooting BTW. edit - where is shot number 5?
You can't beat the mountain, pilgrim. Mountains got its own way.
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bangbangping
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by bangbangping » Fri Dec 28, 2018 10:30 am
rebel wrote:where is shot number 5?
Hard to see but it's in the lower left of the spade.
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rebel
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by rebel » Fri Dec 28, 2018 10:40 am
got it!!!
You can't beat the mountain, pilgrim. Mountains got its own way.