rifle detonation again

[Premod70]

Sorry for the late reply but after reading this thread I would like to add a little of my experiences with the 5744 powder. First I shoot smokeless powders in my Browning BPCR in 40/65 with the original chamber and lead. At the time I bought the rifle I used SR 4759 loaded with a wad made from target paper placed on top of the powder; I got better accuracy with the wad than without. When SR 4759 played out I switched to 5744 and tried various ways of wad placements; fore, act, in between and without. Again I got more consistent accuracy with the wad bearing on the powder. The one thing I noticed was the rifle sounded different when the bullet was seated off the rifling compared to when it was pressed into them. Having previously read of 5744 being used as the powder in a rifle that exploded and the discussion that followed I have for my own satisfaction began to reload my rounds with a wad on the powder with the bullet seated out into the lands. My thinking is the jump on a deep seated bullet moves to the rifling and momentarily stops when the rifle is first fired and the powder burn is changed by the bullet stopping however slightly. With the bullet in the rifling the powder does not meet an "obstruction" and go haywire in it's burn rate. Just my humble opinion but I think the problem is not on the wad in itself rather the wad and the bullet off the riflings together jointly contribute to the problem. Please feel free to add your thoughts as I am here to learn.