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Joined: Mar 2006
Posts: 51
Campfire Greenhorn
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OP
Campfire Greenhorn
Joined: Mar 2006
Posts: 51 |
I bought a 336er a while back that had the forearm replaced with a thinner one. It does not fit correctly and moves front to back about a10th of an inch and the finish doesn't match the butstock. Is there a way to make the forearm fit if I was to refinish both to match, or should I buy a new set that matches?
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Joined: Apr 2013
Posts: 4,906
Campfire Tracker
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Campfire Tracker
Joined: Apr 2013
Posts: 4,906 |
I've seen several lever guns that use forend caps with a shim between the wood and receiver. Also have seen bedding compound used to fill the gap. If you use a shim, make sure it's waterproof.
Charter Member Ancient order of the 1895 Winchester
"It's an insecure and petite man who demands all others like what he likes and dislike what he dislikes." szihn
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Joined: Aug 2012
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Campfire Regular
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Campfire Regular
Joined: Aug 2012
Posts: 2,420 |
Cardboard/cardstock shims at first to find out just where and how big and thick they should be.
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Joined: Jul 2009
Posts: 2,868
Campfire Regular
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Campfire Regular
Joined: Jul 2009
Posts: 2,868 |
Brass shims cut from brass shim stock, or even shims cut from a soda-pop can work well and neither will ever rust or deteriorate. If you cut them small enough, and place them properly, they wont be visible.
shimming against the barrel can cause some accuracy issues if too much pressure is created.
Dave
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Joined: Apr 2013
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Campfire Tracker
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Campfire Tracker
Joined: Apr 2013
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My father slightly shortened the forearm on his M64 Winchester because, as he put it, it would shoot a foot higher in wet weather. The wood would swell and change the POI. I still have it and after being kept out of bad weather for many years the forend moves back and forth about 1/16".
Charter Member Ancient order of the 1895 Winchester
"It's an insecure and petite man who demands all others like what he likes and dislike what he dislikes." szihn
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Joined: May 2005
Posts: 1,864
Campfire Regular
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Campfire Regular
Joined: May 2005
Posts: 1,864 |
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Everyone wants to take any movement out of the forearm. I go the other way and sand or trim my forearm down as needed to get 1/16 to 1/8 inch of play (looseness) in my forearms. It makes for better accuracy....some of the reasons are listed above, stock swell in bad weather, pressure on barrel, etc.
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Joined: Jun 2002
Posts: 11,930
Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2002
Posts: 11,930 |
Would a tight forend be a source of cracking as well?
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Joined: Jan 2007
Posts: 8,761
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2007
Posts: 8,761 |
I bought a 336er a while back that had the forearm replaced with a thinner one. It does not fit correctly and moves front to back about a10th of an inch and the finish doesn't match the butstock. Is there a way to make the forearm fit if I was to refinish both to match, or should I buy a new set that matches? My Marlin forearms move that much since I have "Free Floated" them and they shoot right at an inch. The forearm movement can be annoying but the accuracy never is.
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Joined: May 2010
Posts: 1,423
Campfire Regular
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Campfire Regular
Joined: May 2010
Posts: 1,423 |
Great info on this in Mic MacPherson’s book about Accurizing Rifles.
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Joined: Dec 2010
Posts: 19,158
Campfire Ranger
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Campfire Ranger
Joined: Dec 2010
Posts: 19,158 |
The forearms on my Marlin and Winchester lever guns are bedded to both the barrels and receivers to eliminate all play. They are also well sealed inside and out and on the ends with spar polurethane. They shoot exceptionally well {under an inch for 3 shots at 100 yards.} don't swell or change point of impact in the rain or string shots when the barrels get warm. The notion that forearms need to be loose for good accuracy and to not string shots is complete bullshyt and I've experimented a bunch with these things.
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Joined: Oct 2006
Posts: 352
Campfire Member
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Campfire Member
Joined: Oct 2006
Posts: 352 |
The attachment point that goes into the dovetail cut on the bottom of the barrel had most likely bent. My '76 1894 44 mag is this way, it's a stamped steel part and recoil had bent it, I cold bent it back, but after a dozen or less hot rods it bends again, and loosens up. I'm eventually going to replace it with a newer version that is machined out of a solid chunk of steel, but I'm affraid it may start shearing screws off.
Roughly half the people you meet are below average intelligence.
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Joined: Oct 2002
Posts: 13,292
Campfire Outfitter
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Campfire Outfitter
Joined: Oct 2002
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I make mine a bit loose and seal the heck out of em.
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Joined: Apr 2010
Posts: 8,096
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2010
Posts: 8,096 |
The attachment point that goes into the dovetail cut on the bottom of the barrel had most likely bent. My '76 1894 44 mag is this way, it's a stamped steel part and recoil had bent it, I cold bent it back, but after a dozen or less hot rods it bends again, and loosens up. I'm eventually going to replace it with a newer version that is machined out of a solid chunk of steel, but I'm affraid it may start shearing screws off. Get the screws in straight and snug and you’ll have no need to worry about shearing them. I’ve built north of 100 Marlins in 50AK and never had one shear a screw from recoil. Good idea replacing the tenon though, the sheet metal ones were a joke.
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Joined: Apr 2010
Posts: 8,096
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2010
Posts: 8,096 |
And I bed mine with MarineTex and make sure they’re sealed, not sure I could abide a forend rattling back and forth an 8th of an inch. Probably drive me nuts.
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Joined: Jan 2018
Posts: 981
Campfire Regular
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Campfire Regular
Joined: Jan 2018
Posts: 981 |
I would make a pad out of silicone .
Last edited by Rooterpig; 03/12/18.
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