It may seem counter intuitive, but often a hard cast bullet will lead more readily than a soft one. It's all about fit. I routinely shoot very soft 180 and 190 grain .30's as my hunting loads in .30-30's and .303 Savages, bhn 10-11 (over 28gr. 3031, so they aren't to be sneezed at), with great accuracy and zero leading.
My initial response about pushing these store-bought lead bullets to 1500 fps was based on their being plain based. You get to that point and it starts to not matter if they are hard or soft but rather the fact they don't have a gas check. As ever, there are exceptions but these are are good rules of thumb.
Last edited by gnoahhh; 10/31/16.
