I agree, I did the math on the Hodgdon’s recommendations of refuceing H 4895 by 60 % and by doing that the velocity only reduces down to around 1400+ to 1800 fps ( not subsonic )
Thank you very much. I found Hodgdon data for a 223 Rem. 55-grain FMJ bullet, using 3.1 grains of Titegroup showing around 1050 fps. I would like to try a 70-grain speer spritzer bullet in the 6 PPC and use Titegroup powder. I can’t find any information on how much Titegroup powder could be used...
Thanks for your comment, I am very aware of the use of the cartridges in bench rest. I have owned and shot several BR rifles for many years. However, I have a custom varmint rifle in 6 PPC. I would like to be able to use it with subsonic ammo. I have found information on subsonic 223 Remington...