Update 458 win mag sight on and bedded

DGY

DGY

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So today I lapped the sight to marsh the barrel, no wonder it didn’t stay on, it was touching about 5-10% of the surfaces now they are 95% at least!
I mounted it with JB weld 5020psi epoxy after cleaning with acetone and roughing up both surfaces!
I also bedded the action to the stock with the help of WhyNot(Ted Wagner)
Tomorrow all should be ready for clean up and I will let the rifle sit for a few days before trying it out! I need to make some reloads for it cause I won’t pay $250 for 20 rounds!!
Anyway hope it turns out good!IMG_1111.jpegIMG_1113.jpegIMG_1114.jpeg
 
Potashminer said:
I assume that you used the JB Weld to bed the rifle in the stock? If so, what did you use for release agent?
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I used jb weld on my 500 Jeffery P14 build. I used "Kellys" mink oil for the releaser..I had it for my fancy shoes (alligator) for times I need to dress up and the Internet said it would work and I did.
 
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Well all went well… but the front sight is was ready to fall off so I peeled it off with out any effort at all and did the same treatment as the rear one! IMG_1119.jpegIMG_1121.jpegIMG_1122.jpegIMG_1123.jpegIMG_1124.jpeg
 
First range session with the 458 and 500gn bullets going 2150 with starting load of 71gn of H335! rifle shoots well, but the front sight came off after a few shots 🙄😞 so I’m assuming the rear sight will also come off at some point! The reload data say up to 75.5gn of H335… I’m not recoil shy at all but the pain from the bench is no fun!!
 
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If you want to take one more crack at the epoxy route, try Devcon. It's almost twice as strong as JB. Way more expensive, too.
Weigh out the components, warm them before mixing, mix way longer than they tell you to, add some heat to the assembly as it cures. Do all those things and it just might hold on for you.

Maybe.
 
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I am interested in this because I have a similar project on the go - trying to fasten on a front sight to a rifle barrel - I was up on the Devcon website - there must be at least 30 or more products that they make - all start with the word "Devcon" - which one, in particular, do you recommend to try?
 
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I believe the OP is in Yukon, so another consideration re: this fix is how durable it'll be not only under recoil, but also under recoil in cold/freezing conditions.

An adhesive is surely worth an attempt, or two, as it's reversible and less likely to cause damage to the existing blueing. Granted the OP has a rifle barrel, but I have a cautionary tale about solder (in particular silver) from a recent experience --- I bought a second hand Ruger Red Label 28ga from a dealer, and upon receipt, noticed the top barrel was floating loose from the bottom barrel via separation from a mounting block near the muzzle. Ruger's service department confirmed it had originally been silver soldered. I returned the shotgun to the dealer and they sent it to their gunsmith for repair --- I was later told that the gunsmith's attempt resolder the block had warped the choke threads and rendered the shotgun (a beautiful one!) a write off.

Thanks for the update OP --- hopefully your next attempt will hold better.
 
^^^ That's shoddy workmanship, not the fault of the solder. Silver solder would be the way to fix it, but that would mean a bluing job.

I've been following this thread with some interest, because I have a beautifully blued barrel band front sight that needs installing, and I'd kind of like to do it without polishing and rebluing that sight. I had my fingers crossed for the JB weld solution, now it doesn't look so promising.
 
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High-temp silver solder is a bit of a scary beast when it comes to gun work. I've done it several times, with no mishaps to date, but sweating all the way.
Low-temp solder is not in the same category. Downright peaceful, no oxy-fuel torch or anything.
The Devcon I've used is the kit number 10110.
 
9.3mauser said:
^^^ That's shoddy workmanship, not the fault of the solder. Silver solder would be the way to fix it, but that would mean a bluing job.

I've been following this thread with some interest, because I have a beautifully blued barrel band front sight that needs installing, and I'd kind of like to do it without polishing and rebluing that sight. I had my fingers crossed for the JB weld solution, now it doesn't look so promising.
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I will try again tomorrow, but this time I will put more “structure” to the surface of both the barrel and the sight, something I did for the rear sight and not as much for tye front sight, I will report back but not before I leave for hunting!
 
Watching this thread with interest. My thought is to use epoxy to fix bbl. sights to a Cooey 12ga single shot for turkey hunting
 
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SuperCub said:
Watching this thread with interest. My thought is to use epoxy to fix bbl. sights to a Cooey 12ga single shot for turkey hunting
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I’m reloading some 350gn Speer hot-cor bullet tonight and hoping to go to the range tomorrow or next week… stay tuned
 
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