Does a heavier bullet mean better accuracy?

[Droppin Deuces]

I haven't used anything but 55 grain .223 in a 16" 1x9 carbine. So If I want to reach out a little farther than 600 yards with some more accuracy, will going to a 62 grain bullet alone translate to better accuracy, or do I need to get a different barrel?

[rumblebee]

good reads...also, try a CG search and you should be able to find tons of info

http://ammo.ar15.com/ammo/project/perf_whattwist.html

http://www.6mmbr.com/223rem.html

[five.five-six]

http://ammo.ar15.com/ammo/

[Droppin Deuces]

Ah, perfect! Thanks, guys.

I would have tried a search, but I never get the results I'm looking for...

[rumblebee]

no prob....yeah, gotta get the right "key" words to get back good search info...I always try and bookmark the good stuff

[bcrich]

by 62 grains do you mean ss109 bullets? you know the ones with the green tip! You'll have better results with match grade bullets 69g smk's or 75g hornady's. surplus 62g bullets are not known for their consistency (accuracy). I shoot 75g hornady's in my bushmaster A2 it too has a 1/9 twist and they stabilize fine out to 300yds but haven't tried my luck past that.....they might keyhole but i'll find out soon enough

[U5512]

1/7 twist is ideal and better accuracy for heavier bullets.

[Droppin Deuces]

This stuff. I ordered a few boxes just to see. Sorry, I don't know a whole lot about different types of ammo. I just know that the Federal stuff that Walmart sells goes bang everytime, and the Russian stuff goes bang almost everytime.

[Ahhnother8]

Any FMJ bullet will not be the most accurate, regardless of weight. The 6mmBR article is a bit dated. A 1:7.5 or even better, a 1:7.7 twist barrel will work with all .224" bullets, out to 1000 yards. A 1:8 twist will likely work with all but the 90 grainers. A faster twist does NOT equate to more or less accuracy. If the bullet is stabilized, the twist is fast enough.