- Joined
- Jan 26, 2015
- Messages
- 1,534
I am working on a load for a 243AI and I want to play with neck tension a bit. I have an accurate load with an 80 gr Hammer Hunter running about 3550fps. I'm hoping to shrink SD but was wondering if changing neck tension will affect velocity, increasing or decreasing it? Or will average velocity remain relatively constant and simply shrink ES/SD?