38-55 Rebore

5shooter
Posts: 19
Joined: Tue Dec 02, 2008 1:24 pm

38-55 Rebore

Postby 5shooter » Fri Jan 08, 2010 1:44 pm

I have wanted a 38-55 lever gun for years, but have never purchased one because of the goofy bore, neck, and throat sizes. I have been thinking about pulling the barrel on a Marlin 336 and having it rebored to .375 and purchasing a reamer or throater from Dave Manson. If this works out the reamer would pay for itself because I know of several people that would like a good 38-55. Do you see any problems or have any suggestions such as neck size, throat size, throat length, etc. for this project?

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mtngun
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Re: 38-55 Rebore

Postby mtngun » Fri Jan 08, 2010 4:42 pm

Sounds like a good idea if you have the funds. In theory, the 38-55 or 375 should be an ideal cast bullet hunting cartridge -- if only we didn't have to struggle with the goofy dimensions.

Dave Manson does good work. I've also been pleased with http://www.pacifictoolandgauge.com

My only suggestion for the reamer design is to make sure you design it yourself. Don't leave it up to someone else assuming that they understand cast bullets, because usually they don't understand cast bullets.

456eec
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Joined: Thu Jan 28, 2010 3:54 am

Re: 38-55 Rebore

Postby 456eec » Thu Jan 28, 2010 4:04 am

You could look for a Winchester commemmorative either Chief Crazy Horse, Legendary Frontiersman or Oliver F. Winchester or a Winchester Mod 94 Legacy. All are chambered in .38-55 and have .375" barrels. There must be plenty around. I live in Australia and have a Chief Crazy horse and know guys with both of the other Commemmoratives locally. My rifle shoots very accurately with both Lee .379-250 and Lyman .375449 both of which are gas check designs. Both throw bullets at around .380" with lead + 2% Tin and I size to .378". I'm sure this would be much cheaper than having one built.
Marlin did list the 336 Cowboy in .38-55 a few years ago so there must be some of them around too.

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mtngun
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Re: 38-55 Rebore

Postby mtngun » Thu Jan 28, 2010 8:25 am

I think 5shooter was hoping to have a gun built with proper chamber and barrel dimensions. 38-55's are not hard to come by, but the factory dimensions are a joke.

Your 38-55's may shoot well according to your standards, but we hear lots of horror stories, too. Barrels of .379" or even 0.381" groove diameter are not unheard of. A bullet sized to fit the barrel doesn't necessarily chamber due to a tight chamber neck. If it does chamber, it has to leap across an oversize throat before it reaches the rifling.

Life would be simpler with a 0.375" barrel and a sane throat.

456eec
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Joined: Thu Jan 28, 2010 3:54 am

Re: 38-55 Rebore

Postby 456eec » Fri Jan 29, 2010 4:21 am

While I can't talk about modern Winchesters in general, my barrel slugs at .375 and is very accurate with Hornady 220gn jacketed. .380" cast bullets will be tight to chamber but .378 chamber smoothly. As far as standards of accuracy, my best group with factory buckhorn sights is 16mm at 50metres with about 30mm being the average. It shoots straighter than any other lever action I own.
I do hear what your saying though as I have read a lot about some of the older 38-55 lever actions.

Tazman1602
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Joined: Wed Nov 10, 2010 1:07 pm

Re: 38-55 Rebore

Postby Tazman1602 » Wed Nov 10, 2010 2:14 pm

Anyone wanting to have a 38-55 may want to take a look at JES Rifle Reboring:

http://www.35caliber.com/

There's a couple of guys over on cast boolits forum who recommend him highly..............and the price is right if you've got an old 30-30 laying around.

Art


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