You'd lose weight by doing that. That's a pretty good size difference.
Best thing to do is just order like from Laser Cast http://www.laser-cast.com/45Cal.html and get the proper dia bullet which the have in 300-gr .452 dia and thru the 31st free shipping.Deadeye said:I want to take advantage of OTB free shipping deal. I want some 300gr. .45Colt bullets, but I don't like their FP cone shaped bullet. They have a 300gr. RNFP .45/70 bullet at .459dia. I'm just wondering if I can resize them to .452dia with out causing problems. Would the lube stay in the groves or would I have to relube them?
Deadeye, it is always best to use bullets that are properly cast for your dia of cartridge. A .458 dia bullet sized down may reduce the lube groove rings hence not having enough lube thereby causing severe leading. In the long run it just is not cost effective and creates more work.Deadeye said:Thanks Montanan, I'll check them out.