Let me add a little information its a no1mk2 with a Medford barrel the lees speed I acquired from rpeck. Wanted a load that it with something as not to beat it to death.it is 120yrs old.thought may run black powder and load separately from my other .303s since medfords went extinct as soon as jacketed smokless came out.still haven't slugged it yet though.will try to do that tomorrow.