Thanks, Unclenick!! I will look into faster powders.
In the meantime, should I seat the bullet deeper (it honestly can't be seated more than 5mm/1/4") in the case, or up the powder charge?
I may as well use the powder I have and find a good charge for it in the mean time
What I'm dreading now is opening up 160 cases with a bullet puller!!
When the right to effective self-defence is denied, that right to self-defence which remains is essentially symbolic.
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Any idea that relies on murder for its survival in intrinsically weak.