I've just put together my quasi-wannabe long range rig in .22-250 even if I have not shot a sniper match in 3 years. It's an M700 that's wearing a .223 (re-chambered by tiriaq, of course) LTR 9" twist barrel, most of you know that the LTR fluted barrels are around 20" long.
Here's the rub... I've had super success shooting 75 gr AMAX bullets out of .223's up to 800 meters at sniper matches (NSCC/CFSAC). They were exiting the barrel at around 2750 fps give or take. With the .22-250 I can easily push this 75 gr AMAX bullet to around 3000 fps.... I'm certain the 9" barrel can handle this 75 grainer. So far so good?
Now I would like to know (anybody got experience
) if anybody has had success shooting the 80 gr Sierra Mk VLD or 80 gr Hornady AMAX using a 9" twist barrel.....
Suggestions ? Thoughts ? Experiences ? Shall I just play it safe and launch 68's , 69's and 75's like I have in the past ? Take a chance on some 80 grainers? What say you experts ?

Barney
Here's the rub... I've had super success shooting 75 gr AMAX bullets out of .223's up to 800 meters at sniper matches (NSCC/CFSAC). They were exiting the barrel at around 2750 fps give or take. With the .22-250 I can easily push this 75 gr AMAX bullet to around 3000 fps.... I'm certain the 9" barrel can handle this 75 grainer. So far so good?
Now I would like to know (anybody got experience
Suggestions ? Thoughts ? Experiences ? Shall I just play it safe and launch 68's , 69's and 75's like I have in the past ? Take a chance on some 80 grainers? What say you experts ?

Barney