Thanks guys.
Its a .223, so I don't have to modify the bolt stop, it already comes back far enough. Just needing to get them in the mag.
I can get 58.5mm in the mag, but I have tried a few at 62mm coal and I'm getting a lot better results. I've got a 75g amax @ 2900fps shooting 17mm groups, which I'm happy with
Just as a side note, the difference between the 58.5mm and the 62mm loads was 180fps faster and a tighter group, with the same powder charge.![]()
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