I should probablt PM Judd on this but here goes.

Disclaimer, I'm sitting here, drinking coffee and just "thinking" I got an itch to scratch. cant ID it but:

On my 6.5 Weatherby.....It has a Borden Timberline action (long) I assume it has a "magnum" boltface. Hart barrel.

If I wanted to re-chamber or re barrel, what calibers would my choices be?

just bored in Frisco

26 Nosler
6.5-300
28 Nosler
7 Rem Mag
7 STW
7-300
300 Win Mag
300 Norma Mag

Some examples.

There's this thing called google.com that will take you to a list of cartridges with the 4 actions there are.

cool, Google it for me, copy and paste, send it to me please

Or you could leave a perfectly good 6.5 Weatherby alone and put the money in your "going to Argentina" hunt fund

You love that rifle...don't change it.

But the WSM's and SAUM's all use a mag bolt face too...in addition to the ones Jason mentioned.

thanks for keeping my schizophrenia under control

Buzz, I built a 7mm/300 Win Mag to shoot the new Berger 195 EOL. It is the most amazing bullet I have ever shot. So something in 7mm to shoot the 195 about 3000 fps would be great. A 28 Nosler or 7mm/300 WM would be good.

Buzz, you need a sidekick or maybe a mini-me to keep you occupied.

Buzz between you and Ron y'all make my head hurt.

I think y'all need a .22, a 12 gauge, a 7mm-08, and a stiff drink.

Chad, had this discussion with Jeremy the other day when driving back from Jason's place.

I don't get the reason for the 7-300. Maybe I'm just tarded, but me and others have had issues with belted cartridges. Specifically after 2 or 3 firings on brass.

I shoot a 7 saum out of a long stiller action with 28 inch bbl. My sedate load is a 180 hybrid or 183 smk at 3000fps. I have run the same bullet to 3200 "accidentally" but with minimal pressure signs.

I assume I could, but have never tried,running a 195 at 3k. And before you say it, yes I know the definition of assume.lol

What does the 7-300 do for me other than make me use a custom whidden die to remove the ring above the belt, use a bunch more powder, and headspace on a belt, over a belt less SA cartridge?

IME, belts are pointless, but they are not a problem, either. Neck size your brass, and when you need to full-length size, don't push the shoulder back. Let them headspace on the shoulder, just like any beltless cartridge.

The WM case has more capacity than the SAUM case so with equal pressures you would have higher velocity potential. You have countered that with a longer barrel.

But I guess I don't see much advantage in the 7mm-WM over the standard 7mmRM. The case capacity isn't much greater. Would be the same as the difference between the 300WM and the 308 Norma Mag, or 30-338.

375 H&H
Then you would have a real rifle.

A 7 Rem Mag struggles to get a 195 gr up to 2850 fps MV. The bullet was loaded in my 7 Rem Mag.

The 7-300 has the case capacity to get the bullet up to speed, over 3000 fps MV.

Why not use 28 Nosler? Go price brass for it.

Custom die? Um, no. Change out the bushing in a 300 Win Mag die, and viola, it's a 7-300 die.

Fireman: Not arguing with you. You have the experience with these cartridges and I don't. But a quick check on the interweb says the 7RM has a case capacity of 84 and the 300WM has 88. All things being equal (which I know they never are) how would a 4 or 5% increase in case capacity provide that much more velocity potential? Or is the 7-300 you refer to, based on the Weatherby case? thanks

I wasnt referring to a custom sizing or seating die, I was referring to the custom collet dies that I had to use to remove the slight ring around the top of the belt on 7mag and 300 mag brass. It is somewhat common among belted cartridges. Here is a link so we are on the same page. http://www.larrywillis.com/ .

The die is in the middle of the page.

I have a 375 H&H