I recently acquired a couple of very nice .357 barrels that measure .800 OD. I thought this would make a nice, light 357 Mag rifle without a lot of time consuming lathe work (one .030 pass on an 18 inch blank takes 25 minutes).
The stubs I made require a barrel at least .875 OD to thread so a threaded connection was out. The ID of the non threaded part of the stub is .815. .015 clearance is not ideal but I thought I'd try a glued in barrel. There is very little force trying to push the barrel out of the stub so I bead blasted the barrel and stub and glued the two together with JB Weld. After drying for two days, I fit the stub to an SB2 receiver and chambered it.
Yesterday I got a chance to test it. My son and I put 50 rounds through it with no signs of the joint loosening. A tree had fallen on our 100 yard target board and destroyed it so we could only test at 50. Accuracy was better than I expected with 5 shot groups ranging from 5/8th inch to 1 3/4. 5 of the groups were between 3/4 and 1 1/8.
You might notice from the picture, I only used one scope ring to hold the scope. Two wouldn't fit with that scope and scope mount without slotting the mount. Another reason I was surprised at the accuracy.
I'm not sure how a glued in barrel would work with a bottle neck cartridge or with anything hot enough to require an SB2 receiver but it seemed to hold just fine for 357 Mag at least. Time and more rounds will tell.
treeslayer, the end of the scope is even with the end of the hammer spur. Eye relief looks to be about 3 inches. It is a no name 4X that I had laying around, likely bought years ago in a 3 for $25 deal. Even more reason for me to be surprised at the groups we got. Thats all I could find to put together for testing. Been making too many barrels and running out of scopes.
I'd be interested in one like that in .32 H&R Mag/.32sw long.
As to your one ring solution, well if it works it ain't broke. At least not yet.
But I think I'd find some more rails with more slots. Gives you more options.
Interests wide and widely varying.
Happily married 18 years. Retired on SS with lots of time to spend.
Started with .223 Ultra Bull barrel. Added .357 Talo barrel. Added an action and stock set bought here, 7.62x39 barrel. Then bought complete guns .444 Marlin and .300 Blackout. Leaving me at 4 complete rifles plus a barrel. Plus a 9mm stub job bought here, and I have been finding and buying H&R shotguns at our local pawn shop where they seem to go cheap.
Thanks Ghosth. I made a 32 Mag using a blank meant for 7.62 by 39 but the twist rate is a little fast for lighter bullets and lead and it took all day to get the 1.25 OD blanks down to size.
The one ring solution was to put something on the barrel "right this minute" that I could aim with. I could have milled an additional slot but didn't want to bother. Since it worked so well and likely won't get any rough use I'll just leave it as is until there is a problem. The test was to see if a barrel with that small amount of glue area would hold, the accuracy was a pleasant surprise.
Cost to make one would vary with the price and diameter of the barrel blank.
Very neat! You might put the barrel in the freezer for a couple of days and see if the joint holds. If it does you're golden. You'll never get it hot enough for JBW to fail unless you lay it in a fire!