Has anyone done this wildcat ie 264 winnie or 7mm Rem Mag to 270 cal. the reason I ask is that there are now quite a few good bullets appearing on the market with a good BC.

regards
Griff

I am thinking this is just the 270 WSM in a long action... The 7RM is good enough I don't think it needs modifying, and the abundance of .284" projectiles put it above the .270, even though I love mine!

or simply build a 270wby

I've seen one called a 270/338Wmag which would be the same as the 270/264 or 270/7mag. QL says it would give you one whole grain more capcity than the 270Wby.

Or as Doubless suggests a 270wsm at 3"OAL gives the same net capacity.

That sounds like an interesting wildcat. If I were to do it, I'd neck down 7 Mag brass instead of necking up 264 brass. Your neck might be thicker that way, but there is more choice in available brass.

yes.. but it was called a 270 weatherby . might argue a tiny bit, as the webby is 2.549 case, vs 2.50 ... but, seriously, who in the right mind, or left, would spend the $1500 it takes to make a proper wildcat when they could buy a factory rifle?

Isn't that the argument against every wildcat? Some people understand wildcatting and others don't. So be it. It's funny that someone who understands spending thousands of dollars on a custom stock doesn't understand spending extra on a custom chamber.

duck,

I am kind of a wildcatter, some might say - the question was hass anyone done X .. and the answer is yes, and its factory.

ramrod further answered that using the 300 win would give you 1 whole grain increase over the 270 webby...

if it won't DO SOMETHING better than factory.. doesn't matter how contrived, then its not worth spending a cent on .. shortening the 30-06 by 5 mm splits the difference between then 30-06 and 308 ...

neck it from 6mm to 9,3mm ...

and you have reinvented the x57 mauser lines..

in other words, imho, a wildcat isnt worth doing if you can buy perdactly the same thing with the same results in a factory round.

"reduce the 30-06 12mm and improve it" ... sounds interesting ...

308 nato ...

quote:

Originally posted by griff:
Has anyone done this wildcat ie 264 winnie or 7mm Rem Mag to 270 cal. the reason I ask is that there are now quite a few good bullets appearing on the market with a good BC.

regards
Griff

In one of my wildcat books they show a 270/338mag also 270/300Wby and very little reloading data.

Thanks guys, question answered,I did consider the weatherby but I hate that radius shoulder and begrudge paying ridiculous prices for the brass.
regards
Griff

Jeffeosso, just the shoulder difference alone makes it as different as any other wildcat. Some like the round shoulder of the Weatherby and others like the traditional shoulder. Maybe the ability to use 7mm RM brass without having to fireform to get the correct shoulder is appealing. Also, some may like the longer neck of the Weatherby and others may not.

My point is all wildcats are only marginally different than similar factory cartridges.

quote:

Thanks guys, question answered,I did consider the weatherby but I hate that radius shoulder and begrudge paying ridiculous prices for the brass.
regards

I can fully understand not likeing the radius shoulder. I do scratch my head when I see people doing something simply because of a few cents more per case for brass. Yep 100 WBY cases would cost you about $58 more but it is quality brass. Since I even use norma 280 brass I have no savings. Unless you are shooting a heck of a lot 100 cases should pretty much last the lifetime of the rifle. So add the $150 for the reamer another $120-150 for the difference in factory vs custom dies. You are spending Close to $300 to save $58. I assumed both custom rifles. However custom wildcat vs MOA Wby would be a big cost addition as well.

If you want a wildcat by all means build one. I have plenty. They allow me to anything a factory loading would do. LOL Sure I might do it with a little less powder, muzzle plast and recoil but from a cost basis they pretty much never pay out. But they are different and fun.

As I stated earlier a 270wsm loaded in a longer magazine with an OAL of 3" would give you the same net capacity as your proposed wildcat using factory brass, dies and reamers.

i am indifferent to shoulder angles, radious, and belts ... X grains of H2O capacity is just that ... its not very important to me .. though several wildcats have lead to factory rounds ...

doing something different.. like getting long action performance in a standard length, does trip my trigger, though...

or making monsters...

of course, you could firform 300 win, or 300HH, after suitable forming, into a 270 weatherby chamber, and still have cheap brass..

though the cost for custom reamers and dies, says 450 bucks, would buy ALOT of weatherby brass