JES rebore question

[pahermit]

JES will rebore a winchester 94 30-30 to 38-55 or 375.What is the difference between the two ?

[Hickory]

Not a whole lot.
They are basically the same cartridge, but, the 375 operates at higher pressure and velocities and will kick more.
The 38-55 in modern rifle like the Marlins can be loaded at higher pressure and velocities, but, not as high as the 375.

My choice when I had my Marlin rebored, was the 38-55.
I'd consider the 38-55 a better choice in your 94.

[Shawlerbrook]

Also 38 55 brass seems to be a little more available.

[GhostHawk]

I think he would also do .35-30-30 which will be my choice once I get around to packing my WWII era Win 94 up for shipping.

Lets you use existing .30-30 brass, fire form, then reload.
Dies are however probably more expensive.

[Texas by God]

Winchester is silly sometimes. They produce a Very High pressure loading of the 38-55; reduce the bullet diameter to .375" build beefed up Win 94s to handle it. One problem- the .375 will fit and fire in the 38-55! Luckily; hopefully the old generous .379" 38-55 barrels will hold that pressure?
My JES rebore is .375" 3 groove 38-55 and I love it.

[1Hawkeye]

Yes he will just call Jesse and tell him what you want. He's a pleasure to work with all he needs is your barreled action and a bank money order for 250. Jesse does great work with a fast turnaround time my rolling block was gone 3 weeks from when I left it at the post office to when it was back home. I bet.38-55 is his most popular rebore.

[SvenLindquist]

JES has done 3 fore me and #4 just was logged in there. Ruger No. 1 from 30-06 to 35 Whelen.

Concur that 38-55 is the way to go.

Hint: if you don't want big "Xs" stamped over the old chamber designation, file it off, polish the area to match the existing finish, and all you'll see is the new 38-55 designation.

[pietro]

.

Yep, Jes will do the rebore, as it's a fairly common conversion, with no other work required.

I used to fire .38-55's in my 1978 .375 BigBore94 (with Kentucky elevation) as a mid-range loading for close work on Whitetails.

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[pahermit]

I understand the difference between the 38-55 and the 375.What I am asking is what does JES do differently when he rebores the rifle 375 verses 38-55.I had 3 38-55 rebores done by JES recently,but if I ask him to rebore my rifle to 375 how would that be different from my 38-55's?

[1Hawkeye]

The chamber dimensions are the only difference.

[725]

As I understand it, to get the benefit out of a .375 Win, you really have to crank up the cartridge. Although the chamber dimensions may be slight, they are important. Like most here, I'm a .38-55 fan.

[ReloaderFred]

If you get the .375 Winchester rebore like I did, you can download it to .38-55 specifications, but you can't upload the .38-55 to .375 Winchester specifications. I chose the .375 Winchester rebore for my Marlin 336C, simply because I wanted the option of being able to lot it hot, or not.

Starline is now making .375 Winchester brass, but I have a full factory case of original Winchester brass, so I haven't had the need to try the Starline.

https://www.starlinebrass.com/brass-cases/375-Win/

Hope this helps.

Fred

[cwtebay]

I think he would also do .35-30-30 which will be my choice once I get around to packing my WWII era Win 94 up for shipping.

Lets you use existing .30-30 brass, fire form, then reload.
Dies are however probably more expensive.

I don't know if this is "proper" but I reload for my 35-30 with 35 Remington dies of the neck sizing variety. I took some time messing with it to get it right, but <$30 for the Lee set versus $175 +/- for the correct dies drove me to give it a try. Seems to function just fine once the cases are formed.

Sent from my Pixel 3 XL using Tapatalk

[FergusonTO35]

Buffalo Bore had an article on their site awhile back explaining that their .38-55 +P load is safe to fire in any .375 WCF or smokeless powder proofed .38-55. Also, they could not find any problems using the brass from both cartridges (but not load data!) interchangeably other than the .38-55 brass was usually more accurate due to placing the boolit closer to the rifling.

I currently have a beater 94 in layaway jail. Has some rust in the bore, so it may be heading to JES after I try it out.

[Texas by God]

I don't know if this is "proper" but I reload for my 35-30 with 35 Remington dies of the neck sizing variety. I took some time messing with it to get it right, but <$30 for the Lee set versus $175 +/- for the correct dies drove me to give it a try. Seems to function just fine once the cases are formed.





Sent from my Pixel 3 XL using Tapatalk

I have wondered how that WOULDN'T work before and I'm glad it works for you. Thanks for sharing.

[AnthonyB]

Very timely question for me. I recently (recently? That was 8 months ago!) bought a JES rebored 375 Win marked 336 Marlin from a gentleman here but have not yet got a roundtoit on ammo. I ordered the long 38-55 (2.125) brass from Starline and it chambers with no problem, so I think I am set for loading but have not slugged the barrel. What size does the group suggest for a 375 marked JES barrel?
Tony

[FergusonTO35]

Here's the article from Buffalo Bore on the topic:

https://www.buffalobore.com/index.ph...uct_list&c=175

[Texas by God]

Jessie sent a hand written note with load data and the suggestion to use .375" jacketed or .376-.377" cast in my 38-55. I tried as-cast .380" and they would not chamber. I made a .375" sizer from a .17 Remington fl die and a member here made a .377" die for me that works the best. The only boolit I use is the Lee379255F. Life is good. I'd be out shooting it now but grandson is napping and it's too cold out for this old reptile.

[pietro]

What I am asking is what does JES do differently when he rebores the rifle 375 verses 38-55.

I had 3 38-55 rebores done by JES recently,but if I ask him to rebore my rifle to 375 how would that be different from my 38-55's?

Since you're a good customer of his, why not ask him & report what you find out ? .


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[FergusonTO35]

Does JES remove the barrel from the rifle to do the job, or does it remain attached? Reason I ask is, my beater 94 has the typical front sight pointing at 1 o'clock like most cheap 94's do. If he was removing the barrel anyway, it would be no special trick to index it correctly afterward.