The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Guns, Politics, Gunsmithing & Reloading Gunsmithing how deep is unsafe on 98 Mauser receiver ?Go | New | Find | Notify | Tools | Reply | |
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| One of Us |
I just picked up a VZ24 that looked to be in pretty good shape. However, when I took off the weaver scope mounts out of curiosity, I found that the two holes on the front mount, although placed correctly, are awfully deep. They don't penetrate into the threads or through into the chamber, but they look awfully close and look to be around .140 deep or so...... this gun is a 30-06. I am not a gunsmith, I just like to play around with restocking, etc. The headspace is good, the gun was rebarreled with what looks like a barrel off an old JC Higgins. I know nothing of the history. Is this thing a bomb waiting to go off, or ok to shoot? I would really appreciate the comments from you folks who know this stuff. I like a bargain, but I figure blowing off my hand or face is not much of a bargain. thanks Rick DRSS | ||
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Don't worry the barrel itself will hold the pressurr. | |||
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Can you post a picture of the receiver? If not, where exactly are the holes drilled? You say they are correctly placed, but do you actually know where they are supposed to be drilled? The rear front base hole should ideally be placed just in front of the locking lug abutment, not drilled into it, or into the face of the lug seat. Your description of the depth of the hole and that it did not go through leads me to believe it is drilled into the lug. The steel in the web area is relatively thin and it is generally thru-drilled. I'm not convinced that this is a safety issue, but some speculate it could result in setback over time due to reduced support behind the upper bolt lug. | |||
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Commonly, when Mauser 98 actions are drilled and tapped for scope base, all four holes will completely penetrate the areas drilled. This is normal and has no adverse effect on strength. The most common mistake I see on these is when the holes in the front ring are too far to the rear, with the rear hole either splitting the surface of the bolt seat or in the center of the upper lug. Although not correct I've never seen this cause a problem either. John Farner If you haven't, please join the NRA! | |||
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This was covered in another thread recently. I always drill completely through to get maximum hold. Apparently so do others. The .14 depth is less than what I use as a target for any 6-48. Even with a bottomig tap, it is hard to get enough grip to hold with less. Shallower is OK for sights but scopes are heavy and need a good grip. I would have to go check, but unless I am mistaken, the Wheeler jig I often use positions the rear hole over the lug, and there is no choice. A lot of mounts are essentially as long as the ring on the front and give you no choice. I really don't see how drilling a small screw hole in the lug could be any issue, unless drilled right into th face. I doubt if any rifle has ever been designed with that tight a tolerance. Besides, that area is in compression when fired. For comparison, calculate the thickness of barrel metal left over the throat area when drilling 0.14" deep holes for sight mounts, and remember that the barrel is in tension when fired. | |||
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Thanks so much guys.Great information. Rick DRSS | |||
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The Wheeler jig positions the holes so that the rear front hole is placed ahead of the lug seat face. Most other jigs of that type do the same.  Aut vincere aut mori | |||
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My Forster jig, and my own ingenuity, have allowed me to drill the holes in almost any location needed. One size does not necessarily fit all, but I'm not aware of any jig that doesn't allow proper positioning of the holes if the operator is OK (grin). And FWIW I always drill all the way through the front ring. Regards, Joe __________________________ You can lead a human to logic but you can't make him think. NRA Life since 1976. God bless America! | |||
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through the receiver isn't likely a big deal.. through the barrel is a problem #dumptrump opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
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Truer words were never spoken. Aut vincere aut mori | |||
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I had a customer bring in a Swedeish Mauser ay had been drilled right through into the chamber. He claimed he'd had the rifle for years, shot it hundreds of times and never had a problem with it. He honestly was as surprised as I was to see the hole in the chamber. John Farner If you haven't, please join the NRA! | |||
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You'd of thought you'd get some brass flowing and extraction issues. | |||
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This reminds me of something that happened to my dad years ago. He came home from the flea market years ago, and showed me a 22 rifle he had got in trade. The front sight was missing, and the mount hole was drilled through to the bore. The guy told him it shot great. I asked what he had traded for it. His reply was "A Seiko watch". I thought, oh man, he's been cheated! I pointed the hole out to him. His reply was, "I know, but it's OK. The Seiko was a fake." | |||
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