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Old 12-11-2012, 10:53 AM   #1 (permalink)
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Hammer 7 barrel question

I posted this in the Kingman section and no one answered so I guess I'll try my luck here. What barrel would be good to use on the Hammer 7 for first strike use only? Bore size?
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Old 12-11-2012, 11:12 AM   #2 (permalink)
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Well if lapco ever gets around to making the fsr barrels I'd say that. Several of us have requested it but as of yet it hasn't been completed. Beyond that I'd say just a. 683-.685 14 Inch smooth bore. Or you could give the hammerhead a chance. According to trinity they work wel with first sstrikes. Personally I have my doubts but I haven't tried it yet so I can't argue. They have a. 684 rifled I believe but you'll have to get a. 683 or a. 685 barrel back. That's one of thing that bothers me about them is that the back sizer doesn't match the bore of the barrel.
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Old 12-11-2012, 11:49 AM   #3 (permalink)
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Smooth bore .686 is your best bet.
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Old 12-11-2012, 11:59 AM   #4 (permalink)
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I asked basically the same question a couple months ago for a different project, and the verdict is still out (although keebler's suggest were the general consensus).
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Old 12-11-2012, 11:59 AM   #5 (permalink)
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.684 is such a tight fit though???? If I try and push a FSR though that hole on my hammerhead ball sizer I feel like its going to pop the round. .687 is the perfect fit.
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Old 12-11-2012, 12:00 PM   #6 (permalink)
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Right now it's difficult since there is no scientific data really. Except what's been done by mfgs and I don't trust that. Flasc says. 687 lapco says. 683 etc etc

If you have lots of money get 2 f1 shooting chronys andI all tthe barrels and pickup wwhere punkworks left off


It has to be slightly tighter than the round for the rifling to engage. That's if you go that route. And that's if hammerhead rifle pattern even works as good or better than lapco. They may be the same I dunno

Lapco claims they did various testing with different twist ratios, barrel lengths, groove types/sizes and bore sizes. The resulting 2 barrels they offer are supposedly the best you can get. They made those barrels for tiberius for use on the t9 though so results I'm sure will vary depending on your platform. We already know the t9 internal reg has problems WWhen combined with a rifled barrel.
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Last edited by Keebler; 12-11-2012 at 12:09 PM.
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Old 12-11-2012, 06:45 PM   #7 (permalink)
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Forget who mentioned this to me, think it was one of the avratech guys, but the consensus in the thread I had made about this was that barrel rifling doesn't do much if anything for a fsr - the only was that sort of spin seems to work for a fsr is to get it spinning before if his the rifling, thereby also negating the rifling.

I'd just look into a smooth bore .684-5. I have used .685 smooth bore barrels for fsr and they work very well.
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Old 12-11-2012, 07:28 PM   #8 (permalink)
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Originally Posted by toymachine View Post
Forget who mentioned this to me, think it was one of the avratech guys, but the consensus in the thread I had made about this was that barrel rifling doesn't do much if anything for a fsr - the only was that sort of spin seems to work for a fsr is to get it spinning before if his the rifling, thereby also negating the rifling.

I'd just look into a smooth bore .684-5. I have used .685 smooth bore barrels for fsr and they work very well.

The folks at Carmatech Engineering had a completely different take on that position. Check out my new toy, First look at the SAR 12
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Old 12-11-2012, 07:34 PM   #9 (permalink)
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I read that. It's certainly I interesting and I wouldn't be surprised if it's true. But until we see repeatable tests with numbers and the video to back it up its just talk
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Old 12-11-2012, 10:03 PM   #10 (permalink)
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hammer 7...hammer head...HAMMER TIME !

plus i hear good results using first strikes. almost as good as the fsr by lapco
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