2007-02-05 06:53:36 · 6 answers · asked by overyonderfarms 1 in Sports ➔ Outdoor Recreation ➔ Hunting
Bound's hubby here:
You have asked a very good question!
If you plan on shooting NRA type competition, with targets out to 600 yards, you need to shoot the heavier 80 grain bullets. The heavier 80 grain bullets stabilize better (provide better accuracy) when they are fired in either 1x7" or 1x8" twist barrel. [Footnote: Competitive riflemen have determined that the 1x7.75" twist barrel is the ideal barrel for shooting the 80 grain barrel!]
The 1x9" twist barrel reaches its performance/accuracy limits as bullets reach 68/69 grains. Yes, 68/69 grain bullets will reach out to 600 yards, but they are not as accurate ... and when the winds pick up, they are less controlable.
I would limit your choice to ARs manufactured by: Colt, Bushmaster, Eagle Arms, Armalite, and DPMS. Olympic Arms (Quality Hardware) does not have a quality reputation amongst many target shooters. I have a Colt HBAR with the factory chrome-lined barrel, and as long as I pay attention, this rifle shoots in the 97% range across the course, from 200 to 600 yards. If you are planning on serious shooting, stick to either a 1x7" or 1x8" twist barrel!
Good luck!
2007-02-05 11:05:36 · answer #1 · answered by Anonymous · 3⤊ 0⤋
The 1 in 8 is better because you can use a wider variety of bullets. To put it simply, the faster the twist the heavier the bullets it will stabilize and the 8 is a faster twist than the 9, and any bullet the 9 will stabilize will also be stable with the 8.
2007-02-05 20:27:24 · answer #2 · answered by mountainclass 3 · 2⤊ 0⤋
Depends. Are you going to shoot at long ranges with heavy (80 grain) bullets? Then your best choice would be the 1 in 8 twist barrel. If you're not going to do much of that kind of shooting (i.e. you intend to stick with the standard 50 or 60 grain bullets,) then the 1 in 9 twist barrels are fine. Just get a high-quality barrel, like one offered by Olympic Arms or a similar company.
2007-02-05 15:04:42 · answer #3 · answered by Sam D 3 · 2⤊ 1⤋
Stick with a 1 in 9 twist, it will allow greater versatility in bullet weights used.
2007-02-05 16:29:06 · answer #4 · answered by Anonymous · 0⤊ 2⤋
The higher the twist the greater amount of rotation that is imparted on the .222 projectile resulting in greater stability.
2007-02-05 15:01:29 · answer #5 · answered by Anonymous · 1⤊ 2⤋
Bound's hubby's advice is well thought. I'd say go with what he's got to say
2007-02-06 14:30:19 · answer #6 · answered by djdjr01 3 · 1⤊ 0⤋