Ruger No1
I don't have 220 Swift experience but have played some with No1. If you can't seem to get it to shoot as you think it should and everything else checks out, don't overlook the forearm hanger. Some of them apply uneven pressure on the barrel that affects it's vibrations and therefore accuracy. There is a forearm modification that allows you to tune the barrel/forearm pressure but that involves gunsmithing. There is even a commercial after market forearm hanger replacement one can buy. Mine drove me nuts before I figured out that it wasn't the load but the hanger. Do a search on Ruger no 1 for info.
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