I just purchased a Ruger # 3 in 375 Win. I am going to have it restocked with some metal work. I am thinking about having rechambered in 375 JDJ. Has anyone got any experiance with either of these?

The Win can't compare to the The 375 JDJ. I am rebarreling a handi rifle to one at the moment. You cannot find any RIFLE ballistic data for the 375 JDJ anywhere just handgun data.

Hell the pistol data for the 375JDJ out performs the rifle data for the 375 Win. Just imagine what the JDJ will do in a rifle barrel.

If your number 3 is in good condition, you will be destroying a rifle that does have collector value. Not important to some, but for the very minimal gain in performance I would leave it alone.

quote:

very minimal gain in performance

You're kidding right?

220gr JSP 31.5 gr H4198 2,220 fps CCI LR guest
20" Barrel, ’94 BB Winchester.
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The 375 JDJ will do that out of a 14" pistol barrel!

What do you think it will do out of a 22 or 24" barrel?

Well if you want max performance without breaking your shoulder forgo the 375JDJ and do the 378GNR. 260gr @ 2350fps in a 12" Encore barrel. A 405 Winchester parent case necked down to .375 and available Hornady dies, loaded ammo and properly headstamped reasonbly priced brass made by Hornady from CPE in Arizona. Whats not to like? I would not worry about rechambering that rifle one bit either. reedercustomguns.com

Go with the JDJ as it uses 444 brass, which is easier to get. I wanted to go historic, so I use the 38-56 (use 45-70 brass), for the same powder capacity as the JDJ. I use the same loads in both those and my Contender. In my Peabody and Marlin (custom 95), that is.

444 brass is easier to get than 405 Winchester? How so? 375 JDJ brass ain't no easier to get than 378GNR either. All are EASY to get. Besides, 405 is a lot more historic/traditional than 444 is. TR said so. BTW, I am not poo pooing JDJ's creations as I have one of his custom built 6.5 JDJ contenders that I love.

Local shops carry 444 brass routinely, not so much 405. True, all are easy to get, but I was worse casing it that someone may not know that. I agree, 405 is far more historic. I have 2 95s in it.

Humbarger: Rifle data I got from JDJ:
225 Horn Var 54.3 carbine: 2518
270 Horn RN RE15 52.0 carbine 2338 Pistol 2128
270 Horn RN Var 52.0 carbine 2532 Pistol 2134
330 Swift RE15 47.9 carbine 2226 Pistol 2092
T/C Factory Barrels. Barrel length not specified

quote:

Originally posted by D Humbarger:

quote:

very minimal gain in performance

You're kidding right?

220gr JSP 31.5 gr H4198 2,220 fps CCI LR guest
20" Barrel, ’94 BB Winchester.
======================================

The 375 JDJ will do that out of a 14" pistol barrel!

What do you think it will do out of a 22 or 24" barrel?

well first of all, the #3 barrel is not 22 or 24 inches. I have not bothered to pull mine from the safe to measure it, but I'm guessing 20 inches. So, I would think you would gain about 200fps velocity. That's not taking into account by the way that you are shooting the 375 winchester in a falling block now, not a lever gun limited to 40,000 psi. My guess is that you could indeed make up the difference in velocity by working up "ruger #1" loads in 375 winchester for your number 3. Take a look at what you can do with the 45/70 in a ruger #1 vs a lever action and tell me if you think otherwise? I stand by my little to no gain statement if you are handloading.

buckeye, the exact same thing could be stated for the 375JDJ and 378GNR as those loads listed are for use in TC Encore actions, which are a not nearly as strong as a falling block action so are loaded accordingly. The 378 GNR will nearly equal the 375 H&H bbl length for bbl length. I know as I have compared them. No way your going to do that with a 375 winchester.