Lookin in my gun safe, I found there ist nothing in 6mm. As the minimum for big game in Germany is 6,5mm (.260) the 6mm only can be used for Fox and roe dear and other predatores.

But there is a "must have" feeling inside.
So I look for calibers in 6mm and finaly found

1. 240 Wby.
2. 244 H&H
3. 6x62 frère

All the three are hard to find.

No. 1 + 2 are belted, the frère is available in a rimmed version with same balistics too.
(Thinking about a Blaser K95)

What would you prefere?

Thanks

Burkhard

I am only familiar with the 240 weatherby. I have one, a custom on a Rem 700 action, Shlien barrel, Mc millan stock. Have used for antelope and coyotes, very successfully. I like the cartridge a lot. Brass is expensive, and not found every where. Not sure what else to tell you.

we in the USA have two of the finest 6mm cartridges you can get your hands on. One is the .243 Win and the other is basically your 7 X 57 necked down to 3mm.....we call it the 6mm Remington.

The .240 Weatherby is a ballistic clone of the 6mm-06, and thus the 6mm Freres as well, all all are uncommon. I have a .240 Weatherby that I love to shoot, but have not blooded it yet, something on my to do list. If you have that super 6mm itch, go ahead and find a Weatherby, you will like it!

LLS

Either the 240Weatherby or any of the various renditions of a 6mm on a necked down 30-06 case are past the "diminishing returns" point.... they are faster than a 6mm Rem, but that extra speed comes at a great price
in accurate barrel life. Like the "advantage" of the 257Wby over the 25-06.

BTW, even though the 240wby is "belted" it is a smaller belted cartridge than other weatherby cartridges and it actually fits on a standard (8x57/30-06/7.62Nato) Bolt face.
and there are forming dies that will allow you to form cases from "common" brass.

Now while the 240wby is CLOSE to a 6mm-06
in terms of case capacity it's not that close...
And there are slightly "extreem" versions of the 6mm-06... Like the 240Gibbs...

It should be noted that the 240Gibbs is the "poster child" for the phenomena known as "Secondary Explosion Effect".

AD

I've come to like my 6mm Rems a lot. Very easy to load for, factory components are easy to come by and not expensive, and best of all it just plain shoots. If I needed more, I'd opt for the 6mm-06 or 240 weatherby.

Why not get a 6.5x68?

The 6mm AI is about as far as you can extend the 6mm bore and get a reliable throat life...

I remember a couple of years ago, I was over in Bend OR at the Nosler Shooter's Pro Shop, when this guy came in with a Weatherby chambered in 240 Weatherby...

He had bought it the previous week and had managed to go out and shoot it hot and heavy at sage rats over the weekend...

Now he was back in the store because its accuracy was out the window.. having with him a target that had a nice 12 inch group at 100 yds..

The shop guy looked at it, and said the throat was totally washed out of it already...IN ONE weekend!

After the guy left the store pissed off when he was told the rifle had to be rebarreled, he was just going to send it back to Weatherby, but was all pissed off at the Nosler Shop Staff, stating that they had sold him a bum rifle...

The counter guy was telling me this was some sort of local yoyo that had evidently hit the lottery for a pretty good payoff... so he traded in the John Deere, for a Porsche... and was really gaining a reputation for doing stupid things like this rifle escapade....

The gunsmith was saying you could even see where the barrel had heated up enough to burn the wood of the stock....

That aside, I can get pretty darn high velocity out of my 6mm Remingtons, and not fry the barrel.. but I don't substain a high rate of fire with them either...

I can also do so with a lot less powder than it takes to better it out of a 6mm/06....or 240 Weatherby...

I ran into a local guy out hunting once that had one of those Weatherby Ultra Lights, and he had rebarreled it to a 6mm Remington on a long action with a Pac Nor barrel... talk about a sweet hunting rifle!

you are aware that the .244H&H is HUGE, and you need a long action, besides it doesn't use 243" bullets.

for a break action, nothing would be cooler than a .240H&H rimmed, but this also uses a .244" or .245" bullet.

out of the three you mentioned, i would go .240wby or 6x62R freres if it's a break action.

quote:

Originally posted by seafire2:
The 6mm AI is about as far as you can extend the 6mm bore and get a reliable throat life...

The advantage of a 6mm or AI in a long action is it will push a heavy bullet almost as fast as a 240WB, with less powder. Seafire is absolutely right, beyond 6mmAI Rem, any .243 is just about at the point of diminishing returns.

My 6mm Rem is on a '03-A3 action and it is AWESOME. Completely overshadows a .243 Win.

---Mike

My 6mm AI has been great to me. I haven't done much load work, so far it won't shoot under 1 MOA at 100 yards, but at 300 yards it's busts clay birds and larger pieces of them every time. It groups around 2 inches at 300 yards. A human silhouette target at 400 yards is easy to shoot in the head, it's about a 6 inch square for the head. At 600 yards I can keep shots in a 6 inch group, even with a light wind.

Speaking of wind, this round does not seem to be affected much at all. Yesterday the wind was blowing around 10 mph and at 400 yards putting in 1 MOA of windage moved me 4 inches from POA. Took the windage out, and I was hitting dead on. I can't explain it, but in wind less than 10 mph dialing in windage is useless!

sorry to hyjack the thread but I was considering rebarreling a mauser action to 6mm ai... Tyler what twist do you have, barrel length and grain of bullet areyoou shooting....

26 inch, 1-10 twist, 105 grain Amax under 48 grains RL22 or 49 grains IMR 7828. I could go heavier on the 7828, pressure signs are fine with it, although at the beginning I was getting odd pressures with different powders.

No one is mentioning the 6/284 wildcat? That is the biggest of the .243 bores I shoot, the smallest being the 6PPC. The 6/284 is the equal for all practical purposes to the .240 Weatherby Magnum, and quality brass is currently easy to come by. I get Nosler 85 grain partitions over 3500 ft/secs in my 26" barreled Sako. When shooting Berger 90gr BT's or Nosler 80 BTips accuracy is of about 1/2 minute. My two current favorite rifles however are a .243 Ackley Cooper and a 6 Remington 40X with a custom Hart barrel of 28" and a 1 in 8 twist.

Just based on cartridge choice alone, I would choose the 6 Rem over all others.