Good afternoon. I just joined a gun club that uses Shotmarker on the 1K yd range. One of the members there advised that the load that I use for my 308 may not be supersonic at 1K and that can affect the Shotmarker scoring. I shoot a 175 SMK over IMR4064 that consistently clocks 2675-2680mv. My ballistic calculator says that it should be around 1200 at 1K.
Has anyone experienced this? This load has shot very well for me over the years and I would prefer to keep using it since I have a few boxes of the SMKs.
Thanks
Has anyone experienced this? This load has shot very well for me over the years and I would prefer to keep using it since I have a few boxes of the SMKs.
Thanks