.224 TTH a.k.a .22-6mm

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steveNChunter

New member
Just doing a little dreaming of future rifle builds in my head and I'm intruiged about the .224 TTH (Texas Trophy Hunter) with a 1:8 twist. I like the idea of a fast, low recoil hunting round that will shoot the heavier, tougher .224 bullets such as the 70 gr Barnes TSX. I realize the cartridge is pretty overbore and barrel life won't be great, but it would primarily be a hunting rifle so that's not a big concern.

Here's why I cant decide if its worth doing. The cartridge is basically a 6mm rem necked down to .224. I own three 6mm's already, which I can load an 80 gr Barnes TTSX for and achieve close to the same thing. I am also about to put a take-off .220 swift barrel on a remington action, so Ill have a .224 with nearly the case capacity of the TTH, but that barrel has a 1:12 twist. Not adequate for a 70 gr bullet. I have a .223 with a 1:9 twist that will stabilize all but the heaviest .224 bullets but at nowhere near the velocity of the TTH. With what I already have it is hard to come up with a reason to justify the .224 TTH other than I just really want one.

Is the .224 TTH all its cracked up to be or just an over-hot-rodded novelty? Is it worth it to build one or or am I better off with what I have?
 
How much gain would you get over a fast twist .220 Swift or .22-250?
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A .224 TTH with a 70 gr Barnes is supposed to be 3700+ according to load data.

The .220 swift would be about 3400, and the .22-250 is right on the heels of the swift.
 
I'm starting to think more and more that I'm better off sticking with the 6mm and 80 gr bullets. The TTH is cool, but not very practical IMO
 
In 6mm, the 55- and 70-grain bullets are devastating on prairie dogs and coyotes. The Sierra 85-grain HPBT is my "lazy guy's crossover" load in my .243, for coyotes and deer.

On Bambi, I limit my shots to neck or cross-body heart/lung. I won't take an angling shot with that blow-up bullet.

All in all, the ".22-6" would be fun, but it wouldn't really out-perform what a 6mm can do.
 
Thanks everyone for all the input. I wanted to see if there was anyone out there who thought of the .224tth as the greatest thing since sliced bread. (I'm sure someone does) But most replies have reinforced my thoughts that I'm not really giving up anything with my 6mm's vs. the TTH. I just wish Barnes made a 70 gr .243 bullet :mad:
 
Hornady used to make a 70-grain 6mm bullet. I don't know if they still do. I was getting 5/8 MOA with my .243 and 3031.
 
Hornady makes a 65 and 75 gr .243 bullet, but no 70. Anything lighter than the 80 gr GMX is built for varmints anyway. The load will be for deer hunting so that's why I had the Barnes on my mind. AFAIK nobody makes a .243 bullet lighter than 80 gr that is suitable for shoulder shots on deer. I know many people think that an 80 gr or lighter bullet is inadequate for deer hunting but with modern bullets like the TSX moving at high speeds, 80 grains is plenty. I've already been using 85 grain partitions in my 6mms and they work great, but I'm admittedly a bit of a speed freak and I'd love to see a 60-65 gr TSX .243 bullet. The combination of nearly 4000 fps in a 6mm rem and the penetration of the TSX would be like the hammer of Thor on a deer, coyote, or varmint

Maybe I just need to rebarrel one rifle to a .244 rem :D
(A 6mm rem with a 1:12 twist)
 
I built one two years ago. 90 gr Berger VLD at 3,500 fps shoots flatter than a 190 gr 300 Win Mag at 1,600 meters (1 mile) with less than 1/4 of the recoil. Yes, it eats barrels, but it shoots flat. It is an awesome cartridge, but it has limited applicability for typical 22 centerfire uses.
 
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