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Hi Marks655,
last year I started the project of making my own 45/70. After I found a bare action of a Siamese Mauser on line, with the help of a two members of this forum, they got me a .458 barrel retread and rechamber and the rest is history.
I made some cartridges using two boolits that I cast from wheel w. water cool, a 350grain gas checks, over IMR 3031 at extimate starting speed of 2000fps , the other a 405grain plain also over IMR 3031 at extimate starting speed of 1300 fps. RP case and WLR primers for both. I say extimate fps since for one reason or one other I did not manage to go and test them out at the range yet. By end june all accuracy and speed test should be completed and if you want I will keep you inform by then.
Regards
________
roberto
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