uscra112
01-26-2013, 12:54 PM
Needed a rod guide for a Savage 340 which I'm getting into shape for next range day. The fancy commercial ones I've bought for anything up to $20 don't fit that gun at all. What to do? I let my inner redneck loose on the problem, and in almost no time the solution was in hand.
Turns out that the 7.5x55 Swiss case is a nice friction fit inside a length of 1/2" PVC potable-water pipe, (the beige stuff, not the white stuff). The 1/2 inch PVC is in turn the right O.D. to make a good fit in the boltway of the Savage, (and the K-31, and my P17, und, und, und).
Milled a slot in the pipe. Bored the base of the brass out in the lathe. Assembled with a drop of Crazy Glue. Viola! Works to perfection. Cost so close to zero that it's not worth calculating.
The .30 caliber neck fits nicely into the mouth of a .222/.223 chamber. There's enough friction in the boltway that the thing stays in place with no fiddling. (The diameter is such that it depresses the sear a bit. In the P17 and the K-31 the magazine follower pressure holds it in place.)
The Swiss case has a bigger base diameter than the universal .470" of .30-06/.308 and variants, so for those a wrap of tape and maybe some epoxy would improve the fit.
Turns out that the 7.5x55 Swiss case is a nice friction fit inside a length of 1/2" PVC potable-water pipe, (the beige stuff, not the white stuff). The 1/2 inch PVC is in turn the right O.D. to make a good fit in the boltway of the Savage, (and the K-31, and my P17, und, und, und).
Milled a slot in the pipe. Bored the base of the brass out in the lathe. Assembled with a drop of Crazy Glue. Viola! Works to perfection. Cost so close to zero that it's not worth calculating.
The .30 caliber neck fits nicely into the mouth of a .222/.223 chamber. There's enough friction in the boltway that the thing stays in place with no fiddling. (The diameter is such that it depresses the sear a bit. In the P17 and the K-31 the magazine follower pressure holds it in place.)
The Swiss case has a bigger base diameter than the universal .470" of .30-06/.308 and variants, so for those a wrap of tape and maybe some epoxy would improve the fit.