I have enough 30 caliber 150 and 170 grain bullets. I shoot them in my 30-30's and 30-40's. I think if you have almost any manufacturer's bullets, the manufacturer will list the recommended velocity for the bullet. Generally, I've had good luck with RN bullets. I have some 220 grain Partitions that shoot under 1 MOA in my 300 Weatherby. I had some 180 RN bullets that a 742, which I had, preferred. I shot a buck at about 10 feet with that bullet in 1971 in Missouri, don't think wind drift was a problem. I had a 280 that preferred heavy flat nose SPEER bullets, I think SPEER called them mag-tips.
