The thickness of the semi rim on most factory ammo is a bit on the thin side in my opinion. I make my own brass from .303 or 30-40 with a .060 semi-rim. If the case of factory ammo goes all the way forward when hit by the firing pin, there's .010" headspace. There's a couple ways to keep the round from going all the way forward when struck. Maybe you can find a proper spacer with monofilament line, like they do rimmed .303. Or you could pull the bullets and seat them out into the rifling to hold the case to the rear. I have in the past greased the woefully small Norma cases so they wont grasp the chamber and will fireform back to the bolt face. Gotta remember not to set the shoulder back on those cases. I don't make a lot of 6.5x50, only one of my 38s still has it's original chamber, the others are 6.5x257.
Last edited by madsenshooter; 10-13-2020 at 09:36.
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