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I carry commercial ammo but my FLG builds his own. Once fired WCC brass, tumble cleaned but not otherwise prepped and loaded per usual on a D550 with a Sierra 185 gr JHP. I do not know his current powder charge but it is adjusted by chronograph to as close to 1050 fps as possible. That is faster than the 950 of the Remington in my LW Commander and not so fast as to completely fragment the bullet in water like Cor Bon will.
He follows up by canneluring the brass at the base of the bullet to keep it from setting back against the feed ramp. He used to use a roll tool but now has a modified Lee factory crimp die of my design and his make to do it in one stroke.
He follows up by canneluring the brass at the base of the bullet to keep it from setting back against the feed ramp. He used to use a roll tool but now has a modified Lee factory crimp die of my design and his make to do it in one stroke.