[Pioneer2]

I have read different accounts for trimming brass 24ga some say 2" others a little shorter? Which is correct or will it vary gun to gun re: chamber cut? I noticed the Dominion round is shorter than the paper rolled round and the Kynoch. Will the 3 groove shoot conicals or better with .600 ball? I'll be shortening brass with a small plumbing pipe cutter and appropriately sized hardwood or aluminum dowel inserted in the case. Then chamfer the neck inside and out. Annealed 10 seconds with a blow torch with brass in a cordless drill socket to hold it without burning your hands then each dumped to cool.