Re: Berger Bullets
Ruger has two contours for the #1. The regular and the Varmint. The varmint uses a two piece base, not the quarter rib. Barrel contour is controlled by two parts, where it screws into the action and the foreend hanger. You can measure the barrel at the action and then measure the gap between the foreend hanger and the diameter at the hangar and get a good idea of the profile you need. Or you can just get a varmint profile.
Any unusual profile will require the machining of a blank base by your gunsmith. This is the issue I am researching at the moment. There are blank bases out there but it is unclear to me how to deal with the heat issue. If you go with the two peice base then the scope takes the stress. My thoughts are to go with the one piece base and just not heat up the barrel. I am going to go with a weaver style base and have it machined so it extends back over the top of the action without contact with the action. I hope to have it machined to 20MOA also. Probabaly cost me an arm and a leg.
As far as machining a slot in the base, I view that as deiberately letting there be play in the front of the base. I would rather torque the metal and let it fight for stress and strain and hope the scope base wins.
All of this trouble is for a gun and a caliber that I have very little use for at the moment. I just happen to be fond of the gun and want it rebuilt.
The Smokin Fur Rifle Club