Im considering a new build. Can anyone share experiance in comparing accuracy with 77 and 75 grain bullets in a crome 1 in 7 and crome 1 in 9 barrel. I'm interested in 300 yds to 700 yards. Thanks

1:7 would definitely be your better bet.  1:9 may or may not even stabalize bullets of that weight range.

Quoted: 1:7 would definitely be your better bet.  1:9 may or may not even stabalize bullets of that weight range.

Roger that!
George

I am hoping to hear of actual shooting results with these crome lined barrels with one in nine and one in seven with 75 and 77 grain bullets.  I shoot a 1 in 7 Colt 16 inch, 1 in 8 RRA 24 inch. I also shoot a Savage and CZ bolt gun with one in nine twists. I get mixed results with the bolt guns with 75 and 77 grain bullets.

1x9 is just alittle to slow of a twist for 75-80 gr bullets. 1-7 is just a tad to fast, as far as not being
necessary. ideally you want a 8 twist for the 75-80 gr bullets providing excellent accuracy out to 600 yards. after 600 yards the .223 really is starting to suffer, trying to hold it's accuracy.

From a commercial or military supplier all thats really available are 7 twist and 9 twist c/m, if you are gonna shoot alot of heavy 223 bullets go with the 7 twist if you can'nt find a 8 twist. i'm starting to see 8 twist barrels available in s/s, but most of the c/m barrels out there are 7@9 twists. wilson makes 8 twist ar barrels in s/s, they shoot pretty nice.

hope it helps