Well,here's the deal. I have a short action m700 mountain rifle here that I could use. It's a 243,so there is a bit of bolt work to be done. My smith is fine with it all. Sako extractor and all. Unfortunately, the short action is limited as to where the longer bullets can be seated. I'm tempted to use the mountain. It's my all time favorite rifle. Bedded in a gen 1 Remington Ti stock she is a sweetie. The other donor rifle is an SPS stainless 300 Ultra mag. Another nice rifle that I have bedded in a BDL walnut stock. I have developed a neck problem of late,and the big girl is bothering me after a bench session. I've no use for muzzle brakes. I've spent too many matches a bench over from the big guns with brakes on them. Not a good deal. I'm just curious if anyone here has built a short mag on a long action for ease of seating the VLDs and such.