i used 320 grit to remove most metal then 600 to smooth. i wanted to remove .002 but with polishing ended up at .0025. but worked ok might have needed the extra .0005. not real sure 1000 grit is going to do much.Make sure to use at least 1000 grit paper so you dont go too far too fast.
Thanks guys. I figured the die body wasn't too hard. Bret4207, I have a 6" Taurus model 76 in .32 long (kinda a rare bird, poor man's K32). I've tried .313 and .314 commercial cast with traditional lube, moly, and HiTek, (haven't started casting yet, but entering that brave new world next week I hope) but got leading at the forcing cone and first 1/2" of the lands (only, nothing past that). Assuming gas cutting. Finally pin gaged my cylinder throats and they are .316+......A heavy slathering of LLA helped tremendously, but was very messy in the dies. Slugged the bore at .312 .313. So I'm thinking I'm gonna try sizing the cast to fit the throats. I'm hoping this Lee TL314-90 swc drops large, as many have stated. And plan to dive into powder coating to increase diameter and resize to .316 if necessary. I already have thin walled Lapua cases, an oversized NOE expander plug, and successfully opened up my carbide case sizing die from .330 to .333 using a diamond hone. I hope I'm on the right track with my plans.
Light oil like automatic transmission fluid or even 3in1 or mineral oil works fine to keep the paper from clogging instantly.Do you provide any lubrication while cutting and polishing? Water, oil?
Nice! I love the 32 Long and lucked into a K32 Smith some years back. Very fun gun! Sounds like you're on the right path Undersized commercial cast bullets, probably way harder than needed, sound like a sure fire way to get leading. The #1 rule in this game is "FIT is King!" Everything else follows fit.Thanks guys. I figured the die body wasn't too hard. Bret4207, I have a 6" Taurus model 76 in .32 long (kinda a rare bird, poor man's K32). I've tried .313 and .314 commercial cast with traditional lube, moly, and HiTek, (haven't started casting yet, but entering that brave new world next week I hope) but got leading at the forcing cone and first 1/2" of the lands (only, nothing past that). Assuming gas cutting. Finally pin gaged my cylinder throats and they are .316+......A heavy slathering of LLA helped tremendously, but was very messy in the dies. Slugged the bore at .312 .313. So I'm thinking I'm gonna try sizing the cast to fit the throats. I'm hoping this Lee TL314-90 swc drops large, as many have stated. And plan to dive into powder coating to increase diameter and resize to .316 if necessary. I already have thin walled Lapua cases, an oversized NOE expander plug, and successfully opened up my carbide case sizing die from .330 to .333 using a diamond hone. I hope I'm on the right track with my plans.