Thread: Improving 45-70 ammo with a mandrel

I know it seems like im spitting hairs but i struggled to find anyone online who was managing to make consistantly small groups (less than 1MOA) with this cal. I reckon it can be done but not easily. The recoil is by far the hardest factor that ive experienced.

Im not using a Lee factory crimp die which i know would do a better crimp. Not ruling it out but i'll cross that bridge when get im convinced that i have to crimp
What i struggled with was that the canelure depression on the most bullets is set too far fwd, forcing you to seat too far back if you want to crimp properly.

Im .01" off the lands at the moment which is getting good results with jacketed 300gn HP.
Taper crimping on the regular bearing surface either didnt do much, or all or a sudden it munted the bullet.