If you enjoy loading straight wall cases, bottle necks "shouldn't" be a problem. IF the gun IS NOT a semi auto, neck sizing will give you a custom fit case, & longer time between case trimming. A quick inspection & clean/lube (VERY LIGHT) of dies prior to use, keeps things running smooth for me. I too use a LIGHT spritz of H one shot, on the clean brass prior to sizing & so far (since 1980) stuck cases are almost non existent. My Winchester mdl 94 BB is a favorite, YES cases & flat nosed 220 gr bullets are harder to find (220 gr Hornady flat point interlocks) & more expensive, but once you have the brass you are good to go. Cast boolits would be a serious consideration for the 375.