Thread: .300 Blackout help

Originally Posted by shooternz

The 300 BLK case is very small I worked up from 2.5 Grs 700X to 3.1 grs at 50M 5 shot groups were going under 1"
sound was ok without ear defenders
Got too busy and the weather turned to shit will have another crack at it when the weather improves and the orders stop
coming in.

@shooternz, I read some very interesting trial results for a range of different powders vs group sizes for subs. 700x produced the smallest group out of an extensive range of powders at one charge weight, but then produced the worst groups of all powders if the charge went up or down a 10th of a grain, 1/2" turns into 12" group. I would not use it myself because it may cause baldness.

Originally Posted by Moa Hunter

@shooternz, I read some very interesting trial results for a range of different powders vs group sizes for subs. 700x produced the smallest group out of an extensive range of powders at one charge weight, but then produced the worst groups of all powders if the charge went up or down a 10th of a grain, 1/2" turns into 12" group. I would not use it myself because it may cause baldness.

Too late on the baldness, I have quite a lot of 700X and it is easy to find, the few loads I have tried so far are accurate enough to use in place of a .22RF that I don't have
which was why I got the Blackout put together, Just need to get a bullet mould that doesn't need Gas Checks and will save $0.10 a shot,
I see a new Blackout round has been released the 8.6 great for those with an AR10 lying around.