B23
Well-Known Member
What kind of realistic fps gains can be expected in a 24in barrel shooting 50-55gr bullets between the 223 and 223AI???
I've heard as high as 150fps but I struggle with believing that. I'm thinking more like 50fps gain on the average.
Thoughts??????
I've heard as high as 150fps but I struggle with believing that. I'm thinking more like 50fps gain on the average.
Thoughts??????