Thread: Best brass?

You are overthinking a lot of this stuff. No need to crimp if it's not a semi auto. Load to mag length but first off make up a dummy round with no powder and primer to confirm that you can chamber a round at mag length (you generally can on most rifles). Keep that dummy round and use it to set your die up in the future.

If you want better accuracy then weight sort your brass and throw out any unusual ones.