Originally Posted by
shootrj2003
10-4 on the H 4895,my mistake, I do have both,on shotgun and pistol powders ,and small loads in general at this point I would prefer to avoid them and use something with more bulk as well as something I have (and I do have H4227) and avoid the further problems of position sensivity and use of Dacron questions in a bottleneck case which I will tackle as I go,I do intend to delve into casting and stick with it so I do have time.shooting j- bullets had gotten a bit ho him,and this has peaked my interest plus there are things I want to figure out,questions I need to experiment with I have wondered about,,materials to be used yes,new strange,WONDERFUL THINGS....oh sorry,I get carried away heh !sometimes!
So anyway,how do I go about figuring the fps of a given load ,in a given powder ,I mean I can guess ,but there must be an accurate way,right? or is it as simple as say,deviding the Max fps 2390,by the the Max gr. 34.0 And call it 70.2 fps for every grain?I actually used this and it was very close,within 3 fps.