I just picked up a very nice condition pre-Marlin NEF .30-30 with very sharp conventional rifling. I have a wide range of molds that will work starting with the 115 grain .32-20 boolit and going through 220 grainers. I'm wondering if any of you have a suggestion as to what boolit diameter might be best for this fine little rifle. I have a Skinner aperture sight ordered and plan to use it as a trail walking rifle this fall. GF