Isn't there a theory that anything past 20" may actually decrease accuracy due to the barrel harmonics? Thus why many target rifles are 20" and under now???
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Isn't there a theory that anything past 20" may actually decrease accuracy due to the barrel harmonics? Thus why many target rifles are 20" and under now???
i didnt see a 20" one. the extra 4" are part of my Stannicus complex.
hadn't heard that, would definitely make me change my mind about it. have a link to article/discussion?
No, I have just heard it from several people now. Thats why I was asking. Laxguy is pretty knowledgeable and was hoping to see if he had any input.
Check out this article. This makes me want to shoot my match 20" next to this pistol and see what that difference would be at 100-200 yards. Seems as though you would have just as much success with an 18-20" barrel as you would the 24".
http://www.thetruthaboutguns.com/20...t-barrel-length-muzzle-velocity-and-accuracy/
what I read there, is short range length to accuracy is similar/irrelevant. Long range you get more velocity and more accuracy even between 20 and 26, and that maximum velocity is not reached at 20.
Guys, for equally well-manufactured/crowned barrels, there is zero accuracy increase in longer barrels. Traditionally (and think about revolvers), the longer ones "shoot better" due to the longer sight radius. With a scope or red dot, this is irrelevant. Shorter barrels of the same diameter are MORE ACCURATE due to the barrel flexing less.
The only reason for longer barrels, assuming you're using a scope, is for higher velocity. Higher V. means less wind drift. At long range, that's a very serious consideration. Going from a 16" to a 24" barrel can add 200? 300? fps. And that means several fewer inches of drift at 600 with a 10 mph crosswind. This is the reason for 30" .308 target guns, though they ought to just suck it up and shoot .300 Win-Mag or Ultra Mag or something, but I digress.
Longer barrels are also quieter from the shooter's perspective. Other than that, get the short barrel!
Now, under 16" you are really starting to compromise the effectiveness of the round, due to the lower velocity, but research that yourself. So I guess this is a consideration too, but not really meaningful 20" vs. 24"... At 10.5" though, a .223s effectiveness is limited to short range, assuming FMJ, etc. etc. etc.
The only reason for longer barrels, assuming you're using a scope, is for higher velocity. Higher V. means less wind drift. At long range, that's a very serious consideration. Going from a 16" to a 24" barrel can add 200? 300? fps. And that means several fewer inches of drift at 600 with a 10 mph crosswind. This is the reason for 30" .308 target guns, though they ought to just suck it up and shoot .300 Win-Mag or Ultra Mag or something, but I digress.
Longer barrels are also quieter from the shooter's perspective. Other than that, get the short barrel!
Now, under 16" you are really starting to compromise the effectiveness of the round, due to the lower velocity, but research that yourself. So I guess this is a consideration too, but not really meaningful 20" vs. 24"... At 10.5" though, a .223s effectiveness is limited to short range, assuming FMJ, etc. etc. etc.
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From 20" to 22" you wont even see a gain of 100fps
Maybe if you're a reloader who will find the right powder to burn the whole 24", but if your shooting store bought stuff I doubt you'll see any noticeable velocity gain from anything longer than 20".
556 nato rounds as shown below
http://sadefensejournal.com/wp/?p=1093
Maybe if you're a reloader who will find the right powder to burn the whole 24", but if your shooting store bought stuff I doubt you'll see any noticeable velocity gain from anything longer than 20".
556 nato rounds as shown below
http://sadefensejournal.com/wp/?p=1093
Just got my barrel in the mail. 36 hours from my order being placed. Now to get it put together.
