Primer pocket uniforming question

[Classicvette63]

Don, my theory is that every little bit helps. I'm past the point of making reloads, I'm making handcrafted ammunition. Not only for the accuracy dividends but the pride of doing a good job.

How much can it add up? My Winchester 43 in .218 with ammo that has had the flash hole deburred, cases weighed and using a Lee collet crimp shoots 5 shot, 100yd groups of .580". That was the first load I tried. It won't do that with factory ammo or plain old reloads. Maybe with a little tinkering I'll get it under 1/2". Besides, you really only have to do the primer pocket once.