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Posted: 10/6/2004 8:48:09 AM EST
I am having a bitch of a time finding complete rifles with a 1/7 twist. My question here is...what are the odds that a 1/9 rifle barrel that is 16" long will stabilize a Hornady 75gr TAP???
Link Posted: 10/6/2004 9:19:46 AM EST
Link Posted: 10/6/2004 9:46:30 AM EST
My experience is 75% chance it will stabilze.

3 Bushmaster 1:9s all stabilize it fine, 1 Mini-14 with a 1:9 couldn't even hit the target at 50y (not stabilized).

Funny thing my 20" 1:9 and 16" 1:9 both shoot 75gr OTM BETTER than my 16" 1:7 at 100y (though only by a quarter inch).
Link Posted: 10/6/2004 9:48:03 AM EST

Originally Posted By ALPHA9000:
I am having a bitch of a time finding complete rifles with a 1/7 twist.


Have your FFL order a 'custom' one from Bushmaster with one of their 1:7 twist 14.5" M4 barrels (get the Phantom Flashsupressor). You will have to wait a bit though (I understand BM is out of stock of the 1:7 barrels at this time).
Link Posted: 10/6/2004 9:54:53 AM EST
I really would prefer a RRA 16" rifle. Maybe this particular brand of 1/9 barrel has had a better track record with the 75gr TAP? It would be great if someone who owns this barrel and has shot the 75gr round could tell us about your experience. One more thing, there still is the possibility that a round that is stabilized at 100 yards may not be stabilized at 200-300 years right?
Link Posted: 10/6/2004 10:01:30 AM EST
[Last Edit: 10/6/2004 10:01:54 AM EST by brouhaha]
Link Posted: 10/6/2004 10:03:26 AM EST

Originally Posted By ALPHA9000:
I really would prefer a RRA 16" rifle. Maybe this particular brand of 1/9 barrel has had a better track record with the 75gr TAP? It would be great if someone who owns this barrel and has shot the 75gr round could tell us about your experience. One more thing, there still is the possibility that a round that is stabilized at 100 yards may not be stabilized at 200-300 years right?



Than get the RRA with a 1/8 wilson barrel. The 1/8 will stabalise the 75gr OTM round just fine. Problem solved. You don't really NEED a 1/7 fuck the only reason for the 1/7 in the military IIRC from the ammo oracel was beacuse of the M856 tracer rounds and their length. If you ain;t shooting that, and you want to be able to shoot the heavy 75-77gr pills, get a 1/8 it will work just as well as a 1/7
HTH
Link Posted: 10/6/2004 10:04:06 AM EST
Bushmaster can make you a rifle with a 1/7 barrel, special ordered, or you can wait for Dennysguns to get LMT lowers back in stock and buy it and an upper.
Link Posted: 10/6/2004 10:09:47 AM EST
Duhh! I just remembered - CMMG makes uppers & rifles with 1:7 twist chrome lined barrels if you want to look past getting a RRA.

Link Posted: 10/6/2004 10:15:06 AM EST

Originally Posted By Forest:
Duhh! I just remembered - CMMG makes uppers & rifles with 1:7 twist chrome lined barrels if you want to look past getting a RRA.




Yes, I have one and its very well made. Buy with confidence.
Link Posted: 10/6/2004 10:21:24 AM EST
I thought the 75 Hornady was redesigned to be as short as the 77 grain ammo Brouhaha, is this not the case?
Link Posted: 10/6/2004 10:23:35 AM EST
Link Posted: 10/6/2004 10:38:59 AM EST
Isn't that 1/8 wilson barrel from RRA shiny stainless steel, or is it black like a normal barrel? Btw, the main reasons I wanted the RRA was the DEA tests and the fact that it came at a good price already with that nice nm trigger.
Link Posted: 10/6/2004 12:42:59 PM EST

Originally Posted By ALPHA9000:
Isn't that 1/8 wilson barrel from RRA shiny stainless steel, or is it black like a normal barrel? Btw, the main reasons I wanted the RRA was the DEA tests and the fact that it came at a good price already with that nice nm trigger.



Its shiny but can be blackened or painted. ADCO can refinish for you, and they sell them.
Link Posted: 10/6/2004 4:09:10 PM EST

Originally Posted By ALPHA9000:
Isn't that 1/8 wilson barrel from RRA shiny stainless steel, or is it black like a normal barrel? Btw, the main reasons I wanted the RRA was the DEA tests and the fact that it came at a good price already with that nice nm trigger.


Buy the lower from them with the trigger, and pick up an LMT upper in 1:7.
Or you could buy the LMT upper, pick up a stripped RRA lower, and LPK and stock, and BIY.
Otherwise, go with the stainless bbl. Stainless isn't too bad for shiny. At least none that I've seen are. If you are concerned about it, you can send it out and have it painted, or paint it yourself at home.
There wouldn't be much of the bbl showing, in either case.
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