Definately.
Since gas checks aren't available, use shot buffer over the powder, enough to get compression, and LBT lubricant on your bullets.
If the bore isn't rough it will shoot beautifully with no leading. If it won't shoot to your expectations, a small amount of lapping using the LBT bore lap kit will fix it. If the bore looks cloudy, it is rust bumps, which ruin cast bullet accuracy, even with gas checked bullets but especially with plain base. but the 'cloudy' look brushs off quickly with the lapping process.
Another option is paper patch. I can set you up with smooth sided bullets for conventional paper patching, if you are familiar enough with the process to be comfortable with it. If you have never done it, my glue on patch method is so easy I can do it myself! Just cut strips of computor label and wrap it on. Dampen the patches with melted LBT lube, just enough to give a light blue color to the paper, and the bullets will stand far more pressure than your gun can, with precision accuracy and an always shiney barrel, even with very soft alloy, if expansion is wanted.
