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Barrel Length - Long Range Rifles |
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Urimaginaryfrnd
MODERATOR Resident Redneck Joined: June/20/2005 Location: Iowa Status: Offline Points: 14964 |
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Posted: July/10/2009 at 17:26 |
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http://www.sniperschool.com/sniper-rifle-barrel-length/
I ran across this info and thought I'd throw it out there for you guys to look at. I've had a 20 inch .308 heavy barrel Savage 10FP and I really like the short heavy barrel.
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"Always do the right thing, just because it is the right thing to do". Bobby Paul Doherty Texas Ranger |
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Kickboxer
MODERATOR Moderator Joined: February/13/2008 Status: Offline Points: 23679 |
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Dude, I posted this site a year ago...
When will they EVER catch up?
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Opinion,untempered by fact,is ignorance.
There are some who do not fear death... for they are more afraid of not really living |
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Big Squeeze
Optics Master Extraordinaire GOOGLE NINJA Joined: August/30/2007 Location: Anaheim, Calif. Status: Offline Points: 3143 |
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The mis-conceptions or myths about shorter barrels being less accurate are wide-spread, apparently even amongst a few qualified gunsmiths!! The laws of ballistic barrel physics are just amazing!! The only small dis-advantage to a shorter tube, if you can really call it one, is only a small percentage loss in velocity. That`s it!
That article is very well done and very correct.
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Kickboxer
MODERATOR Moderator Joined: February/13/2008 Status: Offline Points: 23679 |
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Squeezer, you need to check out the pics of my 18" barreled 50BMG... I thought you'd like it
Edited by Kickboxer - July/10/2009 at 19:13 |
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There are some who do not fear death... for they are more afraid of not really living |
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Big Squeeze
Optics Master Extraordinaire GOOGLE NINJA Joined: August/30/2007 Location: Anaheim, Calif. Status: Offline Points: 3143 |
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Kickboxer
MODERATOR Moderator Joined: February/13/2008 Status: Offline Points: 23679 |
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I'm thinking prarie dogs first...
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Opinion,untempered by fact,is ignorance.
There are some who do not fear death... for they are more afraid of not really living |
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Big Squeeze
Optics Master Extraordinaire GOOGLE NINJA Joined: August/30/2007 Location: Anaheim, Calif. Status: Offline Points: 3143 |
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A 50 cal BMG for some prarie dogs ay????? ........The "shoot em and bury em" special!!!.................
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helo18
Optics Jedi Knight Joined: December/02/2006 Location: Montana Status: Offline Points: 5620 |
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more like "shoot and vaporize" Big Squeeze!
Great links Wes!! |
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To be prepared for War is one of the most effectual means of preserving peace.
GEORGE WASHINGTON |
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Urimaginaryfrnd
MODERATOR Resident Redneck Joined: June/20/2005 Location: Iowa Status: Offline Points: 14964 |
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Good job KB well worth a second look too. I find it a lot easier getting a rifle with a short barrel turned around inside a car. (no I'm not hunting the worlds longest pasture)
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"Always do the right thing, just because it is the right thing to do". Bobby Paul Doherty Texas Ranger |
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Kickboxer
MODERATOR Moderator Joined: February/13/2008 Status: Offline Points: 23679 |
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Just raggin' on you... we can't look at those types of real world analysis/use enough. I went and looked again. Saw some stuff I had either forgotten or missed.
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Opinion,untempered by fact,is ignorance.
There are some who do not fear death... for they are more afraid of not really living |
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safariarms man
Optics Apprentice Dolphin Overton Joined: June/28/2009 Location: K67BB Status: Offline Points: 111 |
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Urimfrnd, that is a great topic. Barrel length has always fascinated me and bewildered me with the expectations of other shooters and what they need when they need it. Simple physics answers most of the questions which have already been adressed and the offerings are out there most prominently by Remington and Weatherby, as well as FN in their carbine length rifles of various calibers. Those stiff short barrels that minimize low frequency resonance and make mountain and carry hunting, and thus accuracy and easy carry respectively a plus, are what make those rifles special. Now taking a hot magnum caliber that achieves its best out of that 26 to 28 inch barrel is not served by shooting it out of a 16 to 20 inch barrel, but actually could be done and still achieve good accuracy will still better ballistics that a comparable caliber in a non-magnum, unless the magnum requires that barrel length for complete powder burn. Love the topic, thanks for bringing it up.
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Big Squeeze
Optics Master Extraordinaire GOOGLE NINJA Joined: August/30/2007 Location: Anaheim, Calif. Status: Offline Points: 3143 |
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A 300 WSM would be better served with a 24" to 26" barrel. However from my 16.5" tubed `lil 35.5" OAL Ruger compact, as my chrony shows, I can slightly better 26" barreled 30-06 AI velocities using max loads. I can also get moa and sub moa groups from reduced loadings which are about on par with 24" tubed `06 performance.
No noticeable daytime muzzle flash, but it is very loud, a good kicker and is alot of fun to hunt with.
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jonoMT
Optics Master Extraordinaire Joined: November/13/2008 Location: Montana Status: Offline Points: 4853 |
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With my 20" Rem LTR .308 I always get about 100 fps less velocity than advertised for commercial ammo and in the 2600 fps for my own loads with 165 gr. bullets. I see that as a minor negative vs. all the pluses. Besides, once you get out past 300-350 yards with most cartridges you need a graduated reticle, target knobs or both so there is very little impact on the effective range of this cartridge. The 20" barrel hardly ever gets in the way, is easier to manuever and quite accurate.
According to Dan Lilja, an 18" barrel is 3.51X stiffer than a 26" for barrels of equal weight (5 lbs. 4 oz.) - link. That's pretty signicant. Obviously you can make a longer barrel stiffer but you will lug that additional weight around all day. Funny how those myths get started. Those articles do a good job of disproving that one. |
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Reaction time is a factor...
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Kickboxer
MODERATOR Moderator Joined: February/13/2008 Status: Offline Points: 23679 |
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My 30-06 that I cut down to 20" improved in accuracy at 100 and 200yds. For the first time, I was able get that rifle to shoot under 1MOA with the Greek and Korean ammo I was using. I didn't try any "good" ammo before I sent it off to be remade... "we have the technology. We can make it stronger, faster... better than it was before".
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Opinion,untempered by fact,is ignorance.
There are some who do not fear death... for they are more afraid of not really living |
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cheaptrick
MODERATOR Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
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I'm talking to a "smiff" down in South Carolina about whacking Black Betty's barrel down from 26" to 20".
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If at first you don't secede...try..try again.
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pyro6999
Optics Retard OT TITAN Joined: December/22/2006 Location: North Dakota Status: Offline Points: 22034 |
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dont do it mark, squeezer will never let us hear the end of it. |
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375H&H Mag: Yeah, it kills stuff "extra dead" 343 we will never forget God Bless Chris Ledoux "good ride cowboy" |
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cheaptrick
MODERATOR Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
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If at first you don't secede...try..try again.
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Dale Clifford
Optics Jedi Knight Joined: July/04/2004 Location: United States Status: Offline Points: 5087 |
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accuracy vs. barrel length is as old a topic as rms (the hills). It's been known for at least 30 years --since the days of unlimited handgun silhoutte (bolts and T/C) 14-16 barrels give as good as accuracy as longer. I suspect it started with arguements between the burn rates of black powder which is linear and progressives which peak and then fall off after 14 inches, with little to do with the accuracy aspect, which was introduced later. Longer barrels add wt. which keeps the gun down in solid position type shooting, and directes more of the muzzle blast forward away from the shooter and won't be going away in the future. Just depends on the gun's use--- get one of each.
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Big Squeeze
Optics Master Extraordinaire GOOGLE NINJA Joined: August/30/2007 Location: Anaheim, Calif. Status: Offline Points: 3143 |
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sakomato
Optics Master Joined: February/28/2008 Location: Houston Status: Offline Points: 1166 |
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Why would you take a perfectly good "man sized" barrel and make a pop gun out of it???
Don't make sense to me. I've never had a 24" or 26" barrel actually get in the way or create a problem and it balances a rifle.
Give away velocity............increase muzzle blast!!!!!?????
What for???
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Guns only have 2 enemies, rust and politicians
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