I have an m1 that the lower band keeps cracking along the pin hole,iv replaced it three times and after abit of shooting it cracks again. Has anyone else had this issue?
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Lower band repeatedly breaking??
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I’m not sure of the make of the lower bands they came from numerich gun parts,the first two I used a role pin,this last one I tried a solid pin. The fit was very tight and looked good each time until shooting about 50 rounds through it,under recoil it begins to crack and bend. The rifle has a aluminum beded stock perhaps it’s not tight enough in stock so there’s excess pressure where the band contacts the stock?
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Is the band fitting tightly against the locating shoulder on the barrel? Is the band loose? If loose, peen the barrel lightly with a prick-punch where the band sits. You want a tight fit of the band on the barrel. If it has to be lightly driven into place, so much the better. A loose lower band is also not conducive to good accuracy. You want about .032 (1/32") clearance between the front of the receiver and rear hand guard, and about the same fore-and-aft clearance of the front hand guard to the rear ring of the gas cylinder
Jon
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The hole for the pin looks elongated. I'm wondering if the stock fit is wrong, and the band is actually taking the recoil of the barrel and action. Maybe consider building up the recoil shoulders in the buttstock to stop this. You could get some metal shims and put those over the shoulders first to see how much "gap" you have, and if that fixes the problem. Need to make them slightly thicker than the elongation damage to the band.The thief may possess something he stole, but he does not own it.
The owner has a right to take his property back from the thief.
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Good call on that one Smokey. To the OP-- there should be about 1/32" clearance between the front of the stock ferrule and the face of the lower band. When properly set up, the stock ferrule should impart slight DOWNWARD pressure on the lower band but no forward pressure. Show us a pic with the butt stock in place.
Jon
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Took another look at the first pictures, the hole is being elongated in a manner I would expect if the band is being hammered forward towards the muzzle. This would happen if it were being slammed against the front ferrule, with the weight of everything but the buttstock doing the hammering. Do you have another buttstock that might fit properly?The thief may possess something he stole, but he does not own it.
The owner has a right to take his property back from the thief.
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I do not but plan to get a set from Dupage trading. It was intended for a match rifle. It’s been rebarreled and aluminum beded before I bought it. It’s just odd that whoever beded it didn’t understand where the recoil is supposed to impart on the stock. Definitely turned me off to beded m1s the accuracy was good for about 50 shots each time I replaced the band but degraded quickly after that.i don’t think it really needs a beded stock
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