RockyMtnTactical
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- Joined
- Oct 21, 2006
- Messages
- 3,539
I like the 1/8 the best. I wish this was THE standard.
gun will be a 600-1000 yard gun
Eh, the 6.5Grendel will get the job done, and still fit in the AR-15 upper.Or, you could make your life simpler, your face smilier, and your targets better by just getting the caliber to handle the job (.243 Win or larger).
kriegerbarrels.com, but you'll need to plop it in an upper (or have a gunsmith do likewise), I would suggest a really good bbl for that range...or really big targets.where can i find a kit with the barrel i need?
Quote:
gun will be a 600-1000 yard gun
That's an extremely long ways for a "real" rifle caliber, let alone a short/mid range caliber. If you're really and truly trying to stretch the .223 rem into that long / very long range role (for some odd reason), the answer is clearly "none of the above" - 1 in 7" twist for crazy long bullets in the 80-100 gr range.
A bull bbl (or other heavy profile) will have a greater stiffness and moment of inertia than a smaller profile, fluting the barrel can also help as it relieves a little weight (which can make it have better resilience to flexure as it heats up, and making it lighter to carry) for a better strength to weight ratio, and has a greater surface area (for faster cooling, but at the expense of less capacitance making it also heat up more rapidly). In an AR-15 you are limited in your barrel profile choices, but for distance varmint/target shooting I would want a Krieger 1:7" (or 1:6.5") heavy fluted barrel in chrome molybdenum (I'm not real big on SS but don't really have a problem with it) with a Wylde chamber (so you can still plink with cheap ammo).what will a heavy bull barrel have over a standard barrel as far as shooting long ranges?
gun will be a 600-1000 yard gun
That's an extremely long ways for a "real" rifle caliber, let alone a short/mid range caliber. If you're really and truly trying to stretch the .223 rem into that long / very long range role (for some odd reason), the answer is clearly "none of the above" - 1 in 7" twist for crazy long bullets in the 80-100 gr range.
someone forgot to tell this guy about the limitations
http://www.longrangehunting.com/arti...223-mile-1.php
It is controversial, but there is no question that it can make the barrel stiffer, due to reducing its own weight at the muzzle, if fluted properly (but it can be weaker if fluted incorrectly) as well as make the rifle significantly lighter.Also, I would like to add that the benefit on flutes is still in controversy. Some say it actually doesn't add to stiffness, but takes away from it since you are taking away material...as well as the weight factor is not enough to make a difference in how much you feel holding it.
True, spin it too fast and it will actually spin apart in flight. I wouldn't try anything sub-55gr. in a 1:7" or 1:6.5" twist (and you may have to use 62gr.+ for the 6.5" twist), but for reaching out that far you really need all the advantage you can get from those wee-bore poodle poppers. My thoughts are go with a 1:7" if you want to "try out" 1000yds and 1:6.5" if you are serious about reaching out that far (and intent on using the .22cal to do it). For typical "informal shooting", plinking, light varmint hunting and the like (which is all I use my .223 for) a 1:9" is my personal choice. It sounds like your buddy uses his likewise and would have probably been better served by the 1:9" (or 1:8") as well.Mr. T said:I have a buddy who claims that when he replaced his regular barrel 1:9 to a 1:7 he couldn't shoot his lower weight varmint loads any longer because the twist rate was causing the jackets to spin off the bullet before it got to the target.