BHuij
Active Member
Hey everyone—
Got a noob question about twist rates. Conventional wisdom states that you need more spin to stabilize longer/heavier projectiles. From what I understand, a 1:9 barrel in .223 will usually do okay up to about a 69gr projectile, a 1:8 can do up to around 77gr, and a 1:7 can potentially stabilize even 90gr projectiles.
I realize that there are more factors in play here such as velocity, but as a rule of thumb, that's basically my understanding.
Reason I ask is because I'm hunting for a new mold for .223 and wanting to get something about as heavy as I can get away with. The barrel in question is a 1:9 twist. I'd like to be able to shoot both LV and HV, so I wanted a gas checked mold. I'm trying to decide between then NOE 225-67-FN-A5 and the NOE 228-74-RN-C2. Would the heavier one stabilize in a 1:9 without pushing it to max velocity? Seems like lead bullets behave a little different in terms of stabilization than jacketed.
Got a noob question about twist rates. Conventional wisdom states that you need more spin to stabilize longer/heavier projectiles. From what I understand, a 1:9 barrel in .223 will usually do okay up to about a 69gr projectile, a 1:8 can do up to around 77gr, and a 1:7 can potentially stabilize even 90gr projectiles.
I realize that there are more factors in play here such as velocity, but as a rule of thumb, that's basically my understanding.
Reason I ask is because I'm hunting for a new mold for .223 and wanting to get something about as heavy as I can get away with. The barrel in question is a 1:9 twist. I'd like to be able to shoot both LV and HV, so I wanted a gas checked mold. I'm trying to decide between then NOE 225-67-FN-A5 and the NOE 228-74-RN-C2. Would the heavier one stabilize in a 1:9 without pushing it to max velocity? Seems like lead bullets behave a little different in terms of stabilization than jacketed.