JimGun
Member
Hodgdon recipe for a 200 gr LSWC calls for min. 4.4 gr of Winchester 231 for 771 FPS. Using Berry’s plated SWC oaded with 4.4 gr Winchester 231 I obtained an avg of 570 fps. Since this is the minimum load I will be moving up, but what factors would cause such a disparity between the Hodgdon recipe and the actual fps?