22/6mm

G

Gander D. Bander

New member
I have been brainstorming having one of these built. I have a German 98 long action currently calibered in 25.06. I do not shoot it much so I am going to look into getting a 26" .22 blank from Midway then having my smith chamber it to the 22/6mm. The gun will be primarily a coyote gun so I am not too worried about burning out the throat with massive amounts of shooting. I can't help but imagine I can get 4500 fps out of this round (or am I off my rocker). I was curious to see if anyone has any info on this round. Thanks
 
Heres the load that it had with the 52g. Gun was also built on a mauser action (interarms MX commercial) traded it away a few months ago still kickin myself...

Cal: 22-6mm
Bullet Weight and brand: 52 g HP Speer
Powder weight and Brand: 43.0 g H380
Primer: LRM
Case: RP-N
Times loaded:1
O.A. Lenghth 2.690
Av. Vel: 4050 fps
 
Sounds fun but I would wonder if it would have feed problems with the shorter cartridges in the "long" action. Maybe someone with more smithing experience will chime in.


On the other hand, you also didn't indicate why you don't shoot your 25-06 very much. It's a good long range coyote round but some feel a little too powerful for close in work. From the other posts, I would expect a 22/6mm to also hit hard enough to be hard on hides.

Good Luck Have fun with your project.
 
ok, the 22/6mm, if you want a LR coyote round get a fast twist barrel and shoot 75-80 gr bullets, its called a 224 TTH (texas trophy hunter) they're used for all game up to and imcluding deer, if you want a custom gun on your long action thats pretty much all you can get look into a 240, 257, or 6.5 gibbs, the most you can get from a standard bolt face long action
RR
 
Here'a a couple of links you might find interesting. The .223 WSSM has a larger case capacity than either the 243 or the 6mm case.

Of course since your not worried about barrel life and you have a long action, maybe a .22-06 would be worth trying. /ubbthreads/images/graemlins/grin.gif

22-243 Winchester - http://ammoguide.com/?catid=197

.223 Winchester Super Short Magnum - http://ammoguide.com/?catid=362

And here's a link to the .224 TTH and what ammoguide has to say about it.

224 Texas Trophy Hunter - http://ammoguide.com/?catid=538

"The 224 Texas Trophy Hunter (TTH) was designed by gun writer Ralph Lermayer in 1998. It is essentially a 244 Remington (6mm Remington) necked down to accept .224" bullets. The design criteria were to develop a more lethal .224 caliber rifle cartridge for deer hunting with mild recoil and a flat trajectory.

Rifles made for the .224 TTH have fast twist (8" or 9") barrels to stabilize heavier than normal (75, 80 & 85 grain) .224" bullets. These special bullets have heavy jackets or bonded cores to prevent the bullets from self-destruction in flight at the 300,000+ rpm rotational speeds.

The 224 Texas Trophy Hunter is very similar to the 224 Clark. Timothy Clark of Madera, California began work on his cartridge in 1947. Mr. Clark based his cartridge on the 257 Roberts case, which was based on the 7x57 Mauser case. The 244 Remington is basically the 257 Roberts necked down to accept 6mm bullets. The 224 TTH is identical to the 5.6x57 RWS cartridge except for the neck thickness. There are several other .224 caliber cartridges based on the 244 Remington.

At the cost of expensive custom rifles, highly specialized bullets, expensive reloading dies, short barrel life and no commercially loaded ammunition available; the .224 TTH shows very little performance advantage over the standard factory 244 Remington cartridge.

The .224 Texas Trophy Hunter is for all practical purposes ballistically identical to the .223 WSSM.

Another solution to a problem that didn't exist."

 
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I was looking into the WSSM case capacity today and ballistically it will do anything I am looking to get out of the 224 TTH (which after some research I found the name).Just as with any wildcat especially in 22 caliber, I knew it had been done just couldn't find much info on it.I have even kicked around the idea of AI'n this cartridge that would give it a little bit more case capicity. This is still in the brainstorm phase so I don't expect I will be doing it by the end of the week. It will be something in the future I would like to own.
As far as why I don't shoot my 25.06. The only time I use it is to antelope hunt once a year. Plus, standard over the counter calibers just aren't as fun as putting together your own wildcat.
But who know like I said its only in the "brainstorm" phase. it might turn into the 22-.378 (aka the ears a bleeding, louda boomin') Now that would be one to show your buddies. /ubbthreads/images/graemlins/smile.gif
 
I hate to be the only one to throw water on this, but it's probably a shaky idea.

All the examples above show the .22-6mm getting 4,000~ish fps with a 50 grain bullet.

The .220 Swift and the .22-250 Ackley will do that any day of the week, with a case that's 2/3's the size of the .22-6mm, and with 2 to 3 times the barrel life.

Also... with any BIG .22 centerfire, you need to have a fast twist and heavy bullets to make use of the capacity, and the heavy .22 bullets have a poor reputation on 'yotes... they zip right through.

Then consider the cost of special dies, and (of course) you have to throw some of the barrel life away fire forming the cases.

A .22-250 Ackley would be a piece of cake... you can shoot factory ammo in it while you are taking varmints, dies are readily available, and it will give you the 4,000fps with 50-52 grain bullets.

The.220 Swift would be a better choice... everything is available "off the rack".

.
 
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