Need advice on loading lead bullets for the 91/30

[SKS50]

Have you ever had leading probs in barrel after using the lead bullets?

Not in any of my rifles I shoot cast lead plain base and gas check designs in them all an in some low velocity plinker loads where the gas check isn't needed I just leave it off completely. Those are mainly shot in the old Sav. 30-30 pump gun using 7.0 grs. of Red Dot. But I just recently picked up another mold that throws a Lee .314" tumble lube 90 gr. SWC drops at .315" with pure lead that I shoot sized to .314" in my Mosin and SKS and size it down to .311" for all my 30 cal. US rifles.3.0 to 3.5 grs. of Alliant Bullseye provides the power to get that little bullet just over 1K fps. darn accurate as well and shoots under 2" at 50 yds in all the rifle I use it in.

The only real leading issued I have is in a new Taurus 357 mag. revolver I bought a couple years ago the forcing cone is a little rough an likes to strip a little lead with plain base bullet but with a gas check design it's not a problem,the little bit of leading I do get is easily removed. It will work itself out after I put enough rds. through it and smooth that out.

Was just looking through some of my cast bullet load manuals and they have a Saeco 180 gr. #2 alloy cast bullet similar to the 170 gr. you have,the starting load in the Lyman Cast Bullet manual #4 using the 180 gr. bullet is 20.0 grs. of IMR-4198 @1600+ fps. you will most likely get that and a little better using the 170 and that's plenty of velocity for paper punching,small game or varmints or Med size deer.

The LazerCast bullet is way harder than #2 alloy and want expand but the flat nose portion of the bullet will do the work and create a decent wound channel.