T/C Contender "wildcat?" barrel

[Whbrown]

Greetings, My Dad shot competition as a member of the IHMSA for many years until his passing in 2023. I inherited his Thompson Center Contender that came with a variety of barrels. One of the barrels, I presumed was a 7-30 Waters that he shot competition with however, it appears I was mistaken. Though the barrel chambers his reloaded 30-30 cartridge necked down to 7mm, it will not accept a factory 7-30 Waters. It appears the shoulder is shorter and neck longer than a 7-30. Would anyone have an idea what this barrel may be chambered for?

The barrel is stamped Super 14 7mm TCU.

Thank you for your time and input.

[i26963]

It’s probably a 7 Int-R.
Lots of 7TCU barrels were rechambered to this Elgin Gates cartridge.does it look like this

[i26963]

Here is a link to a short discussion on the cartridge
Hope this helps
Melvin
https://www.ihmsa.org/forum/viewtopic.p ... med#p23413

[Whbrown]

Yes, it looks exactly like that. Thank you so very much.

[gemihur]

A beautiful bullet!
The 7mm family of rounds in the contender offer great performance
Don Bowers did a lot for the shooting sports
https://bellmtcs.com/donbowerlongrangehandguncourse
I've got a 21" Bbl in 7mmJDJ#2 same as 7 Super Bower.
Shoots incredibly well!