Home Forums Reloading Varmint Rifles 50 gr GMX in the 223

I originally posted this question in the big game reloading section - probably should have posted it here. Does any one have data for the 223 using win 748 or AA 2230 with the 50 gr GMX? I will start with barnes 53 gr data if i have to - I understand the GMX is "harder" and has its own load info. thanks!

I use AA2230 for my Barnes 55g TTSX. (Note: I use Hexagonal Boron Nitride (HBN) coated bullets.)
And I'm able to get them the same speed/load data as 55g Cup and core bullets, with no major over pressure signs=ejector marks or swipes. But with pretty flat primers=nothing too scary.

I use PMC brass, and WIN SR primers. Bullet seated and medium crimped with LFCD to the second groove = No grooves/cannelures exposed = Mag Length for AR.

Compressed Load.

Use them in 3 bolt guns and AR gas gun. Brass is reloadable and primer pockets still good.

Be safe work up slowly!

YMMV