Is there a factory round faster than the 240 wby?
If not factory, what wildcat would be faster?

Factory? 243 WSSM, but I would consider it pretty much the logistical equivalent of a wildcat, now days.

And then the sky's the limit to donor brass, RUM probably the ridiculous extreme.

Search for the .240 Incinerator. If I recall it was getting 4,400 with a 70gr NBT. Essentially a improved 6mm-264 Win Mag.

Hodgdon shows 3812 (max load) with a 70 gr bullet for the 6mm Rem.

A max load (same bullet) for the 240 Wby is shown to be 3505.

quote:

Originally posted by craigster:
Hodgdon shows 3812 (max load) with a 70 gr bullet for the 6mm Rem.

A max load (same bullet) for the 240 Wby is shown to be 3505.

I saw that. Not sure why Hodgdon only listed one 240 wby load and one powder in their on line data, but many loads for the 6mm. So their data is incomplete.
I had a 240wby once upon a time. It produced far more than 3500 FPS with 70gr BT bullets.

quote:

Originally posted by wookie76:
Factory? 243 WSSM, but I would consider it pretty much the logistical equivalent of a wildcat, now days.

And then the sky's the limit to donor brass, RUM probably the ridiculous extreme.

I agree. In a 26" barrel it might edge the .240 Weatherby in a 24" barrel. But individual rifles may make it give-or-take.

df06 you HAD a 240 Wby that produced more than 3500 fps. Was wondering if you no longer have it because you shot out the barrel with all that velocity?

Nope, it was not shot out, at all. Guess I shot it less than 500 rounds, mostly paper, but 3-4 antelope and a few coyotes.
My records show
75 Hornady V Max 3780 FPS
90 grain Scirrico 3294
95 Ballistic tip 3345

This rifle had a 26” barrel
Sold it in a stupid time, probably to finance another project. Now kinda thinking about getting another.

A 6mm/06 has the same rim diameter as the .240 but since the body of the .240 reduces just ahead of the belt and that of the 6mm/06 doesn't, the '06 case holds a bit more powder. Therefore, all things being equal the 6mm/06 is capable of higher velocities at the same pressure. Parent brass is cheaper (and much more plentiful) for the 6mm/06, and since both use the same full length action the 6mm/06 would seem to be the better alternative. If you want even more oomf, then you could use the Improved version of the 6mm/06.

If you want to get similar performance in a shorter action then the 6mm/284 is the ticket.

Thanks stone creek. Good points.

My 6mm Rem AI does well. A 6-06 or 243 Catbird and 6mm-284 also does well but I don't have personal experience. You could look at a 240 Hawk off the 280 case.

I'm not sure it is worth doing anything other than a 6mm AI (mine is extremely accurate) or maybe the 6-284 or 6-06... but it need not make sense.

I had a bunch Of good hunting with my 6mm X .270 IMP.designed to handle Fred Barnes' heavy bullets. It was based on the .270 because the reamer went in .050" too deep. It turned out great ,however. The first barrel length was 30" than cut to 28" and finally 26". Drawing the long barrels out of a saddle scabbard was not easy.
roger

Incinerator...
240 Incinerator

quote:

Originally posted by Stonecreek:
If you want to get similar performance in a shorter action then the 6mm/284 is the ticket.

If you have a short action with a mag bolt face, the 243WSSM would be about the same thing. Hodgdon says 3821 with superformance and a 70NBT. I saw WSSM brass on the shelf at sportsman's outhouse last time I was there. I think they had factory ammo on the shelf too.

My son’s 6mm Rem (used to be mine!) shoots Nosler 55 gn BT an honest 4012 fps. It’s devastating on prairie dog.

quote:

Originally posted by jpl:

quote:

Originally posted by Stonecreek:
If you want to get similar performance in a shorter action then the 6mm/284 is the ticket.

If you have a short action with a mag bolt face, the 243WSSM would be about the same thing. Hodgdon says 3821 with superformance and a 70NBT. I saw WSSM brass on the shelf at sportsman's outhouse last time I was there. I think they had factory ammo on the shelf too.

Would be slick if someone made a short single shot action for it.

Decided on the 240 wby
Rem 700 SS action
Shilen sporter barrel, 26”
Mcmillan hunter stock, they had a black, gray, light gray in stock, so I bought it
Scope tbd

Thanks for inputs guys

U Grinch:

IF you think that does it well.
Try hot 110gr in an '06.

From the impact point the "red V starts and runs til the red mist runs out". No particles left of either fur nor flesh.

That's what i used for years when I only had one gun.

George

My Daddy is faster than your Daddy!!

6mm-06 with a 30" barrel is my current long range gun.

I once owned a target rifle chambered to .243 Superrockchucker.....one helluva cartridge....but in fact it's just a different type of 6mm-06.....and further I didn't find that it offered me much more than a 6mm Rem I had at the time.

Some will shoot a bit faster, but the results won't be seen in the field.