Well I have 243, 30-30, .270,25-06 handi. also have a rem wingmaster 12 guage, 243 bolt, 17hmr,.270 bolt and an in-line. This is my dilema. I have an extra receiver. Should I get a 20 guage slug barrel. My area in shotgun only for does from thanksgiving till end january but I use my bow,or in-line. I was thinking a 357 and make it a maxi but I have the 30-30 which is close to that. My last choice was a .204 since i dont have a small center fire but do have a 17hmr to use for the little critters. Any suggestions.