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#13906275 - 06/17/19 38-55 brass length?  
Joined: Sep 2010
Posts: 1,357
J23 Offline
Campfire Regular
J23  Offline
Campfire Regular

Joined: Sep 2010
Posts: 1,357
I'm fixing to send one of my Winchester 94's (26" Canadian Centennial) out to JES to have it rebored to 38-55, 3 groove.

Any idea what chamber reamer he uses? I was gonna order some brass from Starline, but wasnt sure which length to get.

300 BP

#13906310 - 06/17/19 Re: 38-55 brass length? [Re: J23]  
Joined: Dec 2017
Posts: 73
frank500 Offline
Member
frank500  Offline
Member

Joined: Dec 2017
Posts: 73
Wyoming
My rebore uses 2.080 length. And had to run a reamer so rounds would chamber. I fire lapped it also because a pin gauge would not go through. Don’t remember the size but after ten lap loads it dropped through. I ordered the five groove, shoots pretty good now. Nice cartridge in my old model 64. No action work was needed for flawless function

#13907545 - 06/17/19 Re: 38-55 brass length? [Re: J23]  
Joined: Feb 2003
Posts: 2,686
Ole_270 Offline
Campfire Guide
Ole_270  Offline
Campfire Guide

Joined: Feb 2003
Posts: 2,686
Ks
My 3 groove JES rebored Marlin 20" does great with Starline 2.082 length brass and bullets sized to .377. I started out with the Lee 38-250 mold, but later switched to an Accurate 38-250B four cavity, ordered as a plain base. Both have been really easy to get accuracy from.
I use 3 main loads, all with the same bullet at 10-12 Bhn.
10 grains Unique or Universal for a light plinker/practice load at about 1225 fps.
21 grains 4198 for a nice deer load at roughly 1400 fps
32 gr 3031 for 1600 fps and a substantial "whop" when it hits at typical woods ranges. This one I use powder coated bullets to help identify it as the heavy load. The others are pan lubed with Wind's Wonder Wax (50% bees wax, 40% Crisco, 10% Vaseline)
Wish all my projects had turned out as easy and successful as this one.

Last edited by Ole_270; 06/17/19.

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