New Calibers........

[furbearer365]

In my new issue of Predator Xtreme they are advertising for a new varmint round.  They are calling it a .17 hornet.  How many different calibers do you suppose gunmakers can come up with?  What do you guys think would be a good round to invent next?

[Huntbear]

A true .338 WSM...  not a .325. 

[JackOfAllTrades]

Developed in the 1950's by P.O. Ackley, I really wouldn't call it a new cartridge. It was sort of a wildcat back then, as a necked down 22 Hornet. Hornady is just marketing something that's actually been around for quite some time because of the following of the 17hmr for varmints and such.

-Steve

[marlin]

I think SAAMI should standardize an AR caliber that uses the .223 case opened up to take 6mm/.243 bullets. Like the .300 blk upper Im building, but lighter faster bullets. That way you can use the same bolt and magazines as .223 and hunt with it. I know there is already a caliber like that in existence but I cant think what they call it.

[marlin]

http://en.wikipedia.org/wiki/6%C3%9745mm

Here is what I was talking about
Maybe I can find a barrel in this caliber..

[buckfvr]

Why not just shoot the 95 gr load from the .243 ??  Certainly better performance than the 6mm/223.............

[deerslyr]

A true .338 WSM...  not a .325.

Apparently they couldnt get very good velocity or ballistics out of the 338 wsm so they went with the 8mm instead  Im still waiting for one as well

[bobcat]

A 25 WSM would be nice. Really no need for it though, as it wouldn't be much different than the 270 WSM.

[marlin]

Why not just shoot the 95 gr load from the .243 ??  Certainly better performance than the 6mm/223.............

Youre right, but I like the idea of making my AR as multi-use as possible. .300blk isnt really a strong performer either, but it would give me an excuse for subsonic suppressed loads and could also hunt with it if I wanted to. I can just take my .308 if I want more range

[Timberstalker]

A 25 WSM would be nice. Really no need for it though, as it wouldn't be much different than the 270 WSM.

They have a 25WSSM, I dont know if that interests you...

[bobcat]

A 25 WSM would be nice. Really no need for it though, as it wouldn't be much different than the 270 WSM.

They have a 25WSSM, I dont know if that interests you...

Yes I know about that one. I like the full size case better. a 25 WSM should perform about the same as a 257 Weatherby I believe.

[Wacenturion]

A 25 WSM would be nice. Really no need for it though, as it wouldn't be much different than the 270 WSM.

They have a 25WSSM, I dont know if that interests you...

Yes I know about that one. I like the full size case better. a 25 WSM should perform about the same as a 257 Weatherby I believe.

Not quite.

[bobcat]

A 25 WSM would be nice. Really no need for it though, as it wouldn't be much different than the 270 WSM.

They have a 25WSSM, I dont know if that interests you...

Yes I know about that one. I like the full size case better. a 25 WSM should perform about the same as a 257 Weatherby I believe.

Not quite.

Can you elaborate on that? I'm just curious. If I was looking for a new rifle for long range shooting with minimal recoil, I think I'd be looking pretty hard at the 270 WSM. I don't think a 25 WSM would provide any advantage, other than even less recoil. But it sure seems like a 25 WSM should be capable of matching 257 Weatherby velocities.

[bobcat]

Oh never mind, I Googled it and found this:

One of the first wildcat cartridges based on the .300 WSM case to surface is the .25 WSM. (Not to be confused with the factory loaded .25 WSSM.) The .25 WSM was created simply by necking down the short but very fat .300 WSM case to accept .257 inch bullets. Since it is not a standardized cartridge, there are no factory ballistics to compare, and no established pressure standards. At the same pressure established as SAAMI standard for the .270 WSM, the .25 WSM should be able to give a 120 grain bullet a MV of about 3200 fps and a 100 grain bullet a MV of about 3400-3500 fps. These velocities are about 200 fps better than the .25-06 and 100 fps less than the .257 Weatherby Magnum.

[Bob33]

A 25 WSM would be nice. Really no need for it though, as it wouldn't be much different than the 270 WSM.

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/5973406/Why_not_a_257_SAUM_or_257WSM#Post5973406

A 257 Weatherby would outperform it, although in a longer action.