I have a question about powders used in muzzle loading rifles. I bought a CVA break open line line rifle. I'm using 100 gr 777 with Precision Rifles extreme elite HP lead bullet with great results. I have read the 777 is hotter than regular BP and you should use 15% less 777 than BP. Is the load I'm using actually 115 gr BP? My rifle is rated for 150 gr so I'm not worried about to much powder but kind of wondering? I'm new to muzzle loading so please forgive if this is a stupid question. Thanks