bpcrshooter
Well-Known Member
So most 45-70's are in the .450-.458 dimensions, some do come bigger like yours. The copper bullets are hard enough to grab the rifling and not strip or get gas cutting. Therefore you need a custom mold to make the correct dia bullet needed for accuracy in lead bullets. There are a few very good mold makers out there, Buffalo Arms, has LOTS of different designs and if you find one that you like but not the dia you need just call and have them change it to what you need. Brooks trubore bullet molds is another very good mold, he as well can make you a mold to what size you need. Just give either a call and they will set you up. Then there is the lubersizer, RCBS, Lyman, Lee, Magma, will all work, I like the RCBS. Then the dies to go along with the sizer, lube and if you so choose, gas checks. Its an investment but if you shoot a lot it will pay for its self pretty quick these days!!
Are you getting really bad leading? lube has a lot to do with accuracy in lead bullets as well. If you are getting leading you accuracy will drop off very quickly. My recommendation would be to "slug" your barrel and find the true size then call one of the mold maker I wrote about with those numbers.
As for lube, "Felix lube" has been my go to lube for a few years and it has worked in all 4 of my 45-70's, 10mm, 44mas, 41mag, 32-40, 38-55, 40-82, 40-70, 44-70, 40-65, 45-90, 45-100. it takes a bit to make but it works very well.
Matt
Are you getting really bad leading? lube has a lot to do with accuracy in lead bullets as well. If you are getting leading you accuracy will drop off very quickly. My recommendation would be to "slug" your barrel and find the true size then call one of the mold maker I wrote about with those numbers.
As for lube, "Felix lube" has been my go to lube for a few years and it has worked in all 4 of my 45-70's, 10mm, 44mas, 41mag, 32-40, 38-55, 40-82, 40-70, 44-70, 40-65, 45-90, 45-100. it takes a bit to make but it works very well.
Matt