I have an extra long action hanging around and have wanted a 6mmAI. I don't think the long action would be overkill for it, your thoughts.

It'll work, you didn't ask for it but I'll put in a plug for my fav 6 and it is a 6/06 it'll work for that one as well...grins

Good luck to ya

Mark D

I have a 6mm Rem on a long action Model 700....

With the bullets seated long, I get the same performance as someone I know who has a 6mm/06.. while using less powder....

A long action is the only way to go with a 6mm Rem....in a short action it offers nothing that a 243 won't except some extra problems...

Not to contradict Mark D. here, as I respect his opinions...but the 6mm Rem, will give you everything the 6/06 will...

cheers
seafire

I saw a guy at the range with a .243 gibbs.
Built on an FN action. I must admit it was prety impressive.
I would go 6mm o .243 or 6mmAI if you want. but you still have an excelent varmint and deer cartridge, no more no less with any of the cases mentiond, thats what a .243 or a 6mm or even a 240 weatherby is.
Scoot them little bullets as fast as you want, but I don't think the game will show much difference when hit...tj3006

Those 105 A-Max's should really reach out there in a 1-8 twisted barrel.

quote:

Originally posted by seafire/B17G:
but the 6mm Rem, will give you everything the 6/06 will...

cheers
seafire

If this isn't true, it darn close to it. I wouldn't build another 6-06! The 6MM rem is just about all the case the .243 Diameter bullets can use.

Case capacity equals performance. Over achieving equals higher than prudent pressures. FWIW.

"Case capacity yields performance" it clearly is the truth. But how much case capcity is practicle for a givin bore size.
I bet if you shoot a 6mm06 with a strain gage
you are getting some prety high preasures.
I personaly think a 6mmSTW would be foolish.
Could you get more velocity than with a 6mm rem ?
Probably but as you neck a given case down, the presure realease has to be slower. witch is why we keep getting slower and slower powders.
I stick with my point. no matter how fast you drive a 6mm bullet as far a game goes, its still a varmint through deer rifle, mabye with a barnes bullet it would take down bigger game, but a .308 win is a much better elk round than even a 6mm BMG would be.
Now if you are a good enough shot to shoot game at insane ranges, mabye the hyper speed begins to make sence, but I think a .257 weatherby r a 7mmStw or a 270 Weatherby, are all better extreem range game rounds. Compare the BC,s of 6.5 7mms or .308 bullets to the 6mms ...tj3006

The only thing a 6mm-06 really offers over a 6mmRem
is greater costs in loading dies, greater propellant consumption, the tedium of forming brass and shorter barrel life.

The 240Weatherby offers the same things except adds $1 EACH cartridge cases, and $3.50EACH factory ammo
(factory ammo that's probably loaded hotter than a prudent handloader would load the ammo themselves)

The 240Gibbs? Anyone remember the phenomena that some called "Secondary Explosion Effect"?
Who here remembers that the 240Gibbs was the poster child of the phonemena?

the "generic" 6mm-06, the 240Wby and the 240Gibbs
are close enough together ballistically (specifically in regards to case capacity), that you could cover them
all with a small blanket....

The 6mmRem is the largest really practical 6mm and I agree that along with it's sister "?x57mm" cartridges should be chambered in a long action.

I just wish people in general would stop making comments like "Be sure it has a fast twist barrel" which is what defines a 6mmRem as being a 6mmRem, not a 244Rem...
(No, nobody did it here, but every time someone does they label themselves as an idiot from the Department of Redundancy Department)

AllanD

John Barsness has been over the myth many times, in detail, about the 257 Roberts gaining anything of significance by being chambered in a long action. 50-75 fps tops at same pressures. Temp swings and individual loads can swings things more than that. That would be doubly true of the 6mm Rem. There is no magic, only physics.

I have a long, heavy barreled, custom Rifle in 6m/m Ackley Improved. This Darrell Holland smithed Rifle is splendidly accurate and easy on brass.
Mine is built on a Remington 700 short action and is fitted with a single shot adapter.
Love the cartridge!
Love the Rifle!
Its not your go to Ground Squirrel Rifle for sure (recoil, noise, muzzle blast, barrel wear, barrel heat etc) but for long range Deer, Antelope and Rock Chucks it IS the tops!
I say go for it!
Be sure and get the throat set up to your preferred bullet weight from the git go.
Good luck.
Hold into the wind
VarmintGuy

My 6 Rem is a 40X single shot which has a 28" Hart 1 in 8 twist. Incredibly accurate and very fast. The AI version should be more of the same, but I do wonder about the point of diminishing returns in a 6mm/.243 bore.

The AI'ing is all about not trimming brass for me.

Don't have a 6mm anything so I figure it is time. I like the idea of only needing 22 moa to get me on target at 1K.

The brass thing is the only real benefit to the 6mm AI. I had both at one time and it just doesn't get as much meaningful boost as some of the other AI rounds. Looks cool, though.

quote:

Originally posted by FVA:
John Barsness has been over the myth many times, in detail, about the 257 Roberts gaining anything of significance by being chambered in a long action. 50-75 fps tops at same pressures. Temp swings and individual loads can swings things more than that. That would be doubly true of the 6mm Rem. There is no magic, only physics.

Seated for best accuracy (0.015" off the lands) 70gr Noslers would not fit in the magazine of my factory Rem 700Varminter.

perhaps the issue is that Remington throated the 244Rem kinda long and didn't change that
with the twist rate...


AllanD