Got out the chronograph and tested several powders in my 24in barrel 356 win. Was hoping with the longer barrel and using ball powder could get better velocity and still get good accuracy. I've been using the 200gr factory power point with good results, but between cost and being unable to find any was looking for a good replacement load.
factory load averaged 2402 FPS
47gr TAC 2359 FPS no signs of pressure
48gr AA 2520 2359 FPS no signs of pressure
48gr H335 2455 2455 FPS with very slight cratering of primer
Testing of powder was done with 200gr Hornady RN
AA 2520 and TAC showed promise with an increase in charge, not going to increase the H335 load but if it proves to be most accurate it at least matches my factory load. IMR 4064 has been accurate but can only get about 44gr into the case which if I remember correctly gave me about 2300 FPS. Next hitch off the slope will do further testing with the 200gr Hornady and also see what I can do with the 250gr Kodiak.
