so i have been doing alot of research the past month or so on rifles for predator/varmint hunting. i plan on purchasing within the next 2 weeks. my question what are the pros and cons for heavy and regular barrels? i was set on a 700 sps varmint with the heavy barrel but when i went to go look at one it was very heavy opposed to the 700 sps. i plan on doing mostly coyote hunting which will entail alot of walking from spot to spot. also if i get a 22-250 cal will the heavy barrel be better or not matter? pros and cons please. thanks.