Darl S I am using Krag brass. Some use 303 but it is a bit short. The 30-40 krag after being blown out just needs a short trim back to 2.2" and your ready to load and shoot. I've annealed about thirty or so in preparation for loading and fire forming. I'm going to try opening up the case by firing them in a 410. I just ordered some expanding buttons from NOE in 32, 35, 38, 41 just in case the 410 doesn't work out.

Huvius, The usual diameter for the Maynard 40-60 is .417. What most are shooting today is not really the Maynard cartridge since most all except those who are shooting original rifles are shooting .408 bullets, so what they are really shooting today with the chambers and bores is a lengthen 40 Krag. I'm waiting to hear from JES Boring, I've written to see if they offer this chambering and if so what dimensions they are using. I'm looking for a cast pointed bullet of around 300 grains that is similar to PJ's "money" design, but without having to go to a custom mold. I'm not planning to shoot paper with this round. My plan is to run an alloy of 25-1 up to 30-1 over black. Short range 150 yrd average shots of Arizona Elk, deer and pig. The rebore donor rifle is a Handy rifle currently chambered in 30-30. Hopefully this will be a simple rebore and then load development.