Re: Winchester actions ?
Yes, Winchester did build a Model 70 action sized for the WSSMs', it is about a half inch shorter than the short/WSM sized action. The 22-250/308 short action is not the same as the WSSM action. The WSSM action cannot accomodate a WSM cartridge. The 22-250/308 short action could be rebarreled to a WSM, I suppose, but there would be other issues to address, such as boltface, and magazine box and follower. I would be tempted to say, just sell the one you have and get one chambered to a WSM, if that's what you want. And, yes Model 70 triggers are easily adjustable.