Murphy almost struck while I was loading some 7.62X54R using some extruded IMR4060 powder. I was using my Lee Turret with the Lee rifle powder die feeding it thru the top using a Lee funnel. All was going well. I had just poured some powder thru the funnel when the wife came into the garage and spoke to me and left. In that interruption, I continued the cycle with cycling the press handle. Fortunately Lee jars the turret as the die shift positions. That jarring then dislodged the extruded powder that was glombed together in the narrow portion of the funnel and it went everywhere. While most of it was in the casing, there was a fair amount left in that narrow exit of the funnel. Had it not jarred loose, that could of resulted in less charge in the casing in the press and more powder in the next casing. I peak into the casing prior to the bullet so would I have caught the slightly different level of powder??!!?? I'd like to think I would. I had been feeding the powder in and tapping the top of the funnel to begin with but in that interruption, I didn't. At any rate. Thought I'd pass this along so it might prevent a repeat of my error for another cause it should not have occurred!