J jonbpc Regular Rating - 100% 6 0 0 Nov 17, 2017 #1 Hi , im interested in an AR15 but it has 2 options of twist rate, 1/12 or 1/9 . What would be some advantages or differences between. thanks Jon
Hi , im interested in an AR15 but it has 2 options of twist rate, 1/12 or 1/9 . What would be some advantages or differences between. thanks Jon
Andy CGN Ultra frequent flyer Rating - 100% 329 0 0 Location Ottawa Nov 18, 2017 #2 1:9 allows shooting most bullets weighing up to about 69 grs. 1:12 limits you to 55 gr or lighter. That's the advantage of 1:9 over 1:12.
1:9 allows shooting most bullets weighing up to about 69 grs. 1:12 limits you to 55 gr or lighter. That's the advantage of 1:9 over 1:12.
