Quote:
Originally Posted by Tim Anderson
Just use the 22-250 reloading data for same weight bullet and cut back a few grains.. Or just compare another load using a different powder and compare it to what the 22-250 has listed in a manual..
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That's a pretty bold statement. Just because you are launching the same weight bullets the volume for a 20 cal. and a 22 cal barrel in the same length are going to be completely different. I would imagine a load designed for a 22-250 would have a much greater velocity and a much higher pressure on the 20 cal. Maybe so much higher as to be a catastrophic in the 20 cal.