I double powdered my .69 one day while chronographing loads - 480gr. ball and 330gr. of powder. I was distracted by the fellow shooting with me wo was having trouble with his production rifle. I double powdered - that shot lifted up into the standing position off the 'round' I was sitting on and registered only 70fps higher velocity than the top load of 200gr. GOEX 2F I had tested that 'range' day. This was in 1986 & 200gr. ran 1,700fps average. 165gr. 2F, my decided upon moose load, produced 1,550fps. & gave a point blank range of 125yards using a 3" standard, above or below and produced the rifle's best accuracy on paper at 100 meters. 200gr. shot the same, but kicked too much, I thought at the time.