Author Topic: 7mm TCU out of rifle barrels  (Read 798 times)

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Offline Badnews Bob

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7mm TCU out of rifle barrels
« on: March 13, 2008, 06:52:11 PM »
Anyone using this round in your rifle? I was wondering if you pick up any speed over the 14 inch contender barrel, I am considering this round for a 22 inch rifle, but all the info I've found so far has been out of 10 to 14 inch barrels. Thanks.
Badnews Bob
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Offline sweetwyominghome

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Re: 7mm TCU out of rifle barrels
« Reply #1 on: March 13, 2008, 07:21:11 PM »
From a 22" barrel, you'll gain around 175 fps on average over a 14" barrel. Some loads may pick up around 200 fps, but that will be about it as the case is an efficient one and does fairly well in 14" tubes.

Nonetheless, a 7 TCU carbine makes a terrific 200 yard deer-dropper with the 120 grain Ballistic Tip or even the 140 grain version. Both will expand down to around 1650 fps or so.

Offline Badnews Bob

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Re: 7mm TCU out of rifle barrels
« Reply #2 on: March 14, 2008, 06:03:57 AM »
Thanks, I like the way this thing looks on paper, And it will be a re-bore job that's why I said .22 I could have it cut back to 18" while the smith has it then it would be a little quicker handling, should make for a dandy little deer rifle here in eastern Kentucky.
Badnews Bob
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Offline Buck O Bob

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Re: 7mm TCU out of rifle barrels
« Reply #3 on: March 28, 2008, 05:44:17 PM »
You'll be pleasantly surprised at the increased velocity attainable in 22" barrel. Just finished working up several different loads in my MGM 1in11 twist barrel. 2675-2700 fps results w/ 120 nos BT and H322 powder[.5 gr under max load Nosler manual for 14" barrel] I've reloaded same fire formed[rem] brass 5 times w/ no excess press signs[case bases, stretch,prim pockets,primers,etc.] Accuracy is .5 MOA.  BOB