Weatherby Mark V (Germany) 7mm WBY Mag - 7mm REM Mag Fired Through It - "Won't Shoot Strait" - Weird Obstruction?

[asd9055]

This picture shows the markings on an Early Weatherby 7mm "Weatheby" magnum. They dod not have to worry about RM, as it was not created yet.

 

[Ole' Laughing Bear]

I bought this barrel off of eBay for a vanguard. Threads are for a MK V.

Oh man! What would you be willing to part with it for, money wise? I'm absolutely interested.

 

[Ole' Laughing Bear]

This picture shows the markings on an Early Weatherby 7mm "Weatheby" magnum. They dod not have to worry about RM, as it was not created yet.

View attachment 381011

I was wondering about this when I photographed the barrel stamp on this rifle. Very cool little, historical tid-bit. This project has been a huge learning opportunity.

 

[asd9055]

I was wondering about this when I photographed the barrel stamp on this rifle. Very cool little, historical tid-bit. This project has been a huge learning opportunity.

When you have time, can you show a picuter of the receiver/bolt on the right hand side?
Also, from the serial number, I can tell you the approximate year it was made

 

[hunter0528]

Epoxy is already in there (post # 27)

I saw, but for future reference.

 

[Ole' Laughing Bear]

When you have time, can you show a picuter of the receiver/bolt on the right hand side?
Also, from the serial number, I can tell you the approximate year it was made

Absolutely. I'll post a photo tonight when I get home. The serial number is P26823. Thank you!

 

[asd9055]

Absolutely. I'll post a photo tonight when I get home. The serial number is P26823. Thank you!

From the serial number, your rifle was manufactured in W. Germany in 1967. You are also in luck, because by then they addressed safety and trigger issue. The only other thing you would need to know in case you do not change the barrel, is the barrel twist, The early ones were 12 twist. I am not sure when they went to faster. But you can watch a video from Midway how to measure it. Again, this is only if you do not change barrel. If you get the barrel from @19Wyoming it would be good to know the twist so you can know your bullet limitations.

 

[BigDon]

Good Morning Smiths and Enthusiasts alike,

I'm hoping to garner a little insight from you guys about a Mark V that was given to a pal of mine after the previous owner "gave up" on it.

Firstly, let me state that I am not a gunsmith. I am a hobbyist. I hunt and shoot long(ish) range regularly but, by no means do I claim to be an expert in this arena. The little bit I do know has gotten me by, in regards to repairing and modifying my rifles so, naturally my friends and inner-circle sometimes recruit my efforts in helping them with their rifles as well.

In my present situation, I have a Weatherby Mark V (Germany) which is chambered in 7mm WBY Mag. The previous owner claims to have accidently fired 7mm REM Mag through it. He wasn't clear on how many times he did this and he didn't really supply any details about the experience overall. He did conclude however that, since then, he hasn't been able to get this rifle to "shoot strait," even with factory ammunition. He decided to give up on the rifle and handed it down to a mutual friend - through our church. Our mutual friend is a close one to me and, I am hoping to get him into hunting this Fall so, the news that he acquired this rifle as a gift was welcomed.

I have the rifle broke down to the action and barrel now. I haven't noticed any obvious issues on any exterior components so, I placed the action in my vise and began cleaning the bore. Upon doing so, I noticed something peculiar about the cartridge chamber. (At least, it seems peculiar to me), because I don't recall ever seeing anything like it before, on any other rifle. That said, I don't own any Weatherbys so, I can't accurately judge.

Anywhoser, there seems to be a "sleeve" of some type in the cartridge bore. My first thoughts directed me to a memory of an old SKS I once owned. The previous owner fired a brass cased 7.62mm through it and it ripped the head case off, leaving the brass body stuck in the cartridge bore.

The fix was fairly easy but, before I started pushing two-part molding epoxy into this rifle, I wanted to reach out and make sure I'm correct in assuming this brass lining inside the barrel throat isn't something proprietary to Weatherby rifles. Have any of you seen this? I can't honestly say I can think of a good reason for a manufacturer to utilize a wear sleeve in a chamber so, I'm suspicious of the object but, I am not an engineer, or a gunsmith or, an owner of any Weatherby rifles so, I don't want to make any assumptions.

Based on what I'm seeing however, my theory is that the 7mm REM Mag case might have been a "hot" load or for some other reason might have produced excessive pressure. When it was fired, it split the case right at the bore start and the remaining section "swelled" to form inside the chamber. Due to the 7mm REM Mag cartridge dimension being slightly larger in diameter than the 7mm WBY Mag (.5127" VS .5117), the 7mm WBY Mag cartridge was able to fit inside the stuck case and be fired.

Am I grasping at straws here?

Any help ya'll can provide is greatly appreciated. I have attached a few semi-detailed photos to this post.

Thank you again and, happy shooting.

The shooter's name isn't Ron, is it. If so, I was there when he did it - sight-in day for the Lander One Shot Antelope hunt. He didn't know there was a difference between Wthrby Mag and REM Mag. Ammo was straight out of the box, not hot, not a hand load. Happened in 2005. He was on my team.

 

[jbo829]

Well i appreciate the learning curve of the early German models I have a varmintmaster in 22-250 mine was made in 1969 and it blows my mind if the gun was made in 1967 why they wouldn't specify which chambering it was

 

[asd9055]

Well i appreciate the learning curve of the early German models I have a varmintmaster in 22-250 mine was made in 1969 and it blows my mind if the gun was made in 1967 why they wouldn't specify which chambering it was

They did designate the caliber. Rember, 7mm RM was not introduced until 1962, and not many around. Weatherby did not offer Non-Weatherby Magnum rifles in MK V untill a long long time later.
So if you had an early Weatherby, and just 270 Magnum for example, that was a 270 WBY magnum.

 

[19Wyoming]

Oh man! What would you be willing to part with it for, money wise? I'm absolutely interested.

Yes I would. Send me a PM.

 

[WinMag4me]

A can of computer duster turned upside down will do the same thing and is a little easier to aim.

A can of a/c Freon turned upside down will shrink the h*** out of most metals
But be careful it will have the same effect on you

 

[asd9055]

A can of a/c Freon turned upside down will shrink the h*** out of most metals
But be careful it will have the same effect on you

Just asking, will it cause the epoxy to come off? that's the first priority

 

[xsn10s]

Just asking, will it cause the epoxy to come off? that's the first priority

I'm wondering if duckman's idea with computer air upside down sprayed on the epoxy with shrink it do to the cold and then wack the barrel with a rubber mallet will shock the epoxy free. Or put a patch on a rod and jag to center the cleaning rod and wack it against the epoxy.