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Old 05-12-2012, 08:02 PM   #21
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You can't go wrong with Knights, LaRue, Noveske, and LMT. DD and BCM should be your mid range bread an butter. Spike's and PSA on the lower end.

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Old 05-13-2012, 03:15 AM   #22
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Fluting does help cool a barrel by increasing its surface area, but it also increases the strength of a barrel that is used in harsh conditions. Being dropped or knocked on a hard surface can bend a normal barrel and the fluting helps the tensile strength to resist bending. This is not as much a cosmetic effect as it is a real world reinforcement of a barrel intended to he used roughly.

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Old 05-13-2012, 03:25 AM   #23
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How far would you have to drop a barrel or how hard would one have to be knocked to bend?

I understand the added ragitity and cooling but as a way to strengthen a barrel so it resists damage? Has anyone ever seen a bent barrel caused by being dropped or knocked around?

Clear this up for me JonM.

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Old 05-13-2012, 03:42 AM   #24
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Quote:
Originally Posted by MikeJK View Post
How far would you have to drop a barrel or how hard would one have to be knocked to bend?

I understand the added ragitity and cooling but as a way to strengthen a barrel so it resists damage? Has anyone ever seen a bent barrel caused by being dropped or knocked around?

Clear this up for me JonM.
ive seen soldiers bend 20" a2 semi heavy barrels just monkeying around. if you drop a rifle off the top of a hmmvw or 5 ton or similar vehicle or fall on top of it its gonna bend. but i dont think a fluted barrel would have helped. fluting done right dampens the effect of vibration possibly aiding accuracy but i dont think its enough to notice in anything but benchrest and those guys prefer super thick barrels anyway. if the bend isnt bad there is a technique in the m16 armorers manual to hand straighten them in the field.

bends happen a LOT in hand to hand combat. especially in ww1 and some in ww2. doesnt happen as much as times have progressed.

personally i think its a non-issue since life or death no ammo left and your afixing a bayonet... bending a barrel is the least of your concerns. the rest is just clumsiness or neglect or negligence and easily avoided

the main purpose is heat reduction by added surface area. a fluted barrel has a higher sustained rounds per minute than a similar non-fluted. i think colt rates their m4 carbine at 12-19 rpm for sustained fire. a shorter barrel also has a higher sustained fire rate than a longer identical barrel because more powder is burnt outside the barrel than inside but as you know it also decreases velocity.

my personal preference for a rifle im carrying is lightweight barrels. im no longer active duty military and i doubt im ever going to be in a frontline type fight having to maintain a higher rate of fire in a prolonged battle.

my savage model 10 308 is fluted and i can sustain a 12ish rpm and it doesnt get too hot due to the fluting. of course external air temp has a lot to do with how fast you can shoot without extreme overheat
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Old 05-13-2012, 04:35 AM   #25
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Sounds like another plus on the side of the 14.5" M4. I have never heard of a bent barrel and I wasn't exactly in an inactive place.

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Old 05-13-2012, 07:52 AM   #26
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Sure the added surface area from fluting helps a little, but just a little. The removal of mass is a much bigger factor in cooling rates. Remove 20% of the mass and it'll cool down (and conversely heat up) approximately 20% faster. I think the fact that it makes the rifle lighter and adds a bit of rigidity makes it a win win. Tho is does cost a biy. If I were making a bench gun, I'd prolly forgo it and keep all the added mass tho.

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Old 08-23-2012, 12:29 PM   #27
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Default black rain

i own 6 black rain guns and have seen Black dawn at gun shows.
Black rain are much better quality but a lot more money,

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Old 08-23-2012, 02:27 PM   #28
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Pics............awwwwwww nevermind.

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Old 08-27-2012, 08:44 PM   #29
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Theres an article on black rain in the next issue of swat magazine that I just got. Im not to far from where black rains are made and gun shops around here have alot of them. Im looking to get one soon.

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