JES Rifle Reboring comes through again! - Graybeard Outdoors
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post #1 of 17 (permalink) Old 12-11-2018, 08:29 AM Thread Starter
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Default JES Rifle Reboring comes through again!

I have sent 10 rifles to Jes over the last decade to be rebored to something else. I have done everything from 308 to 338 Federal all the way up to 375 WSSM. Never have I been disappointed.

My last project was based on the fact that in Iowa, like many states we can now hunt deer with straight walled cartridges in rifles. I sent JES a Marlin 336RC to be rebored to 375 Winchester. I put a Leupold 1/X4X20 shotgun scope on the old girl and loaded up some ammo. I used AA1680 in increments from 36 grains up to 42 grains and topped it off with a 200 grain Sierra. 42 grains fills the 375 brass pretty full and is compressed but there were no pressure signs. The 42 grain load also produced 6 shots into 1.45 inches at 100 yards. I am tickled pink. My factory 375 Marlin with it's Micro-grove rifling won't shoot that tight. However it is pristine so is a safe queen for the most part.

Props to JES for once again putting a smile on this old mans face!

Oh by the way 2610 FPS out of that 3 groove rifling!
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post #2 of 17 (permalink) Old 12-11-2018, 09:26 AM
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What twist was the barrel rebored to? Thank you.
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post #3 of 17 (permalink) Old 12-11-2018, 11:30 AM Thread Starter
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1 in 12.5 is what I get when I measure it with a tight patch on the end of a dowel.
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post #4 of 17 (permalink) Old 12-11-2018, 12:24 PM
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Gpa,

1. What exactly did this cost please?

2. Did this rifle start out as a .30-30 or a .35 Rem?

Thx,

Mannyrock
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post #5 of 17 (permalink) Old 12-11-2018, 12:36 PM Thread Starter
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It started off as a 30-30! I sent a money order along with the gun for $225 and that covered return shipping.

www.35caliber.com You can see other options as well.

As a side note 375 Winchester brass are hard to find. JES set mine up with a few thousandths longer chamber so that I have the option of using 38-55 brass. The folk at Starline brass say that their 38-55 brass resized to 375 Win are plenty strong enough for even my hot loads. I use a lot of resized 30-30 brass too.....mostly for cast bullets.
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post #6 of 17 (permalink) Old 12-12-2018, 09:16 AM
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Nothing like a project with a successful outcome! Great idea about making the chamber long enough to handle .38/55 brass.

A bit off topic, but I could never understand why the bore diameter of the .38/55 wasn't standardized long ago?? I think that may have been one of the biggest reasons Winchester came out with the .375 Win - just to have a lever action .375 (.38/55) with a standard bore diameter.

The .375 Win deserves to be more popular than it is.
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post #7 of 17 (permalink) Old 02-13-2019, 03:46 PM
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I agree the 375 is a fine cartridge for hunting bigger big game. I owned one while I was living in Alaska. But here in the southlands a 30-30 works for all my needs now. And I’ve retired from reloading. Gave all my reloading stuff to my SIL. Told him he’s now the family reloader.

Byron

Christian by choice, American by the grace of God.

NRA LIFE, Trump for 2020
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post #8 of 17 (permalink) Old 02-16-2019, 07:14 AM
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If someone wanted to send a rifle to JES, who exactly and where are they located?
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post #9 of 17 (permalink) Old 02-16-2019, 05:14 PM
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Quote:
Originally Posted by Hudge View Post
If someone wanted to send a rifle to JES, who exactly and where are they located?
www.35caliber.com

Thanks, Dinny

I reload and shoot 348 Win, 358 Win, 6.5 Creedmoor, 6.5 Grendel, 30-06 Springfield, 300 BLK, 44 Mag, 357 Maximum, 9mm, 45 ACP, 45 Colt, 225 Win and 35 Rem
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post #10 of 17 (permalink) Old 02-17-2019, 01:53 AM
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Quote:
Originally Posted by dinny View Post
www.35caliber.com

Thanks, Dinny

THANKS! Now I have to find a rifle I want and send it to him to bore it out to 9.3x62! I've got some time though, I am stuck in Afghanistan until August.
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