good read i never really thought about flexing my action i just put a 30" shilen bull on my model 12 lrpv action should'nt be a problen with it being a large shank and single shot action. but ya'll got me thinking about my mod.12 small shank action i just put a mcgowen 223 barrel on kinda glad i kept it at 26" varmint instead of another 30" bull.