Hello all - I just purchased a new-to-me Marlin 336 in .30-30. The serial number puts it as a 1979 manufacture.
After I did a thorough detail cleaning on it, I cycled a round all the way through from load port to ejection to check the action. After ejection, I noticed that the brass casing had some significant length-wise gouges running down the case. I'm concerned that these are deep enough to weaken the case walls, especially over multiple loads.
After some brief experimentation and close inspection of the loading port, it appears that the lip of the load port on the receiver isn't smooth and is gouging the brass in at least two places. In one place, there's a significant notch (in the pic of the receiver, it's the right yellow square). In the other place, I can't tell what's causing it. Pushing the cartridge in slowly, I can actually cause a ribbon of brass to peel away.
Any thoughts on how to fix this? Can I hit it with some sort of dremel head to smooth it out? I hate to take tools to the receiver willy-nilly. Or is this a gunsmith-class repair?
After I did a thorough detail cleaning on it, I cycled a round all the way through from load port to ejection to check the action. After ejection, I noticed that the brass casing had some significant length-wise gouges running down the case. I'm concerned that these are deep enough to weaken the case walls, especially over multiple loads.
After some brief experimentation and close inspection of the loading port, it appears that the lip of the load port on the receiver isn't smooth and is gouging the brass in at least two places. In one place, there's a significant notch (in the pic of the receiver, it's the right yellow square). In the other place, I can't tell what's causing it. Pushing the cartridge in slowly, I can actually cause a ribbon of brass to peel away.
Any thoughts on how to fix this? Can I hit it with some sort of dremel head to smooth it out? I hate to take tools to the receiver willy-nilly. Or is this a gunsmith-class repair?