300BlkTalk

All things 300 AAC BLACKOUT
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PostPosted: Thu Dec 06, 2018 10:59 pm 
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Silent But Deadly
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Joined: Mon Apr 22, 2013 2:01 pm
Posts: 6835
Location: Moonshine Country
Rusty Shackelford wrote:
Glad to see you here Rusty.


Thanks for the tip, it worked like a charm.

Now, since the OP and I are both using short barrels, it seams to me the light weight bullets will give higher velocity to start with or, will the heavier 125/135 gr bullets start a little slower and have more retained energy down range at say 100-150 yards?
R.[/quote]
This is the rub Rusty,
As Bang answered your question, I will as well by saying "Yes". The heavier bullet will have more retained energy, question is, will it have enough velocity to open up? The 150 Gold Dot has exceeded the goal of what most Blackout shooters wanted in a heavier projectile concerning hunting. It opens at lower speeds, around 1300 fps give or take 50 fps. It's hard to reach the velocity needed in a short barrel to reach that 150 yard mark and not be a bit marginal. I haven't ran the numbers on JBM because Speer's published BC is BS. Dellet has a much more realistic number than can be computed. Look up the 150 gr Speer GD thread and he has it there. Since you are new to 300 Blk but not to reloading, don't be scared of 296/110, just respect it. Watch your brass for pressure signs and get the best velos you can get from it. For the 150 GD I use 1680. I can give you a bit should you want to try it with that bullet.

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