theoretical reloading question 351/357 Mag

[TargetRick]

Q for you: could 357 Mag dies be used to reload 351 Winchester? The loading depth would have to be adjusted of course, since cartridges are of different "tallness". But could the dies be made to work?

Bore seems very close, .357 vs. .351

[cole smith]

I use 357/38 special dies to load 351 works fine only issue I have is neck tension but my cases don’t bottom out in the 357 die if that is what you are asking. The issue with neck tension is even without expanding a 0.351-0.352 bullet will drop in. You can solve this a few ways, 1. Load with IMr 4227 and sit the bullet on top of the powder and crimp there, coal may not be perfect but I never had feed issues. 2. Carefully insert into a taper crimp die until the bullets can be pushed in but don’t freely drop. 3. Lee factory crimp die set properly to again allow a bullet to be pushed in but not freely drop.