Originally Posted by soundwaves
ok on my 150 grain federal amo it sais 7RA and on the 175 grain PSP pmc box it sais 7C. WHAT İS 7C ?? what does it stand for ? asking this cause maybe l can get beter results on balistic calculations
You'd probably be best off contacting PMC directly to find out. You can also email both them and Remington to find out exactly what bullets they are using and get the spec's on those bullets.
My ballistic calculator has a library of bullets so all I have to do is enter they brand, typed, grains and the program will then plug in the BC on it's own. Of course it has to be one of the listed bullets in the library for that function to work and so if it's not in the library you can enter it manually.