Look closely at the reply by TallL and you will see that the velocity difference between most loads you can legally use on clays of any sort has very little effect on the time that it takes the shot to reach the target. Consider a true right angle crosser at 35 yards-a typical sporting clays shot. Can you or anyone else consistently vary your lead by only 8 or 9 inches? I know I can't, so velocity has the least effect on lead of all the variables. I, too, load Clays powder, and I have tried about every combination there is. I finally setled on a load in the mid 17 grain range for both 1 and 1 1/8o z loads. I simply try to keep the recoil down and the speed around 1180 fps, and that works well for me. Sometime you should buy a box of 1 oz STS or the 1 oz AA that is loaded to that fps and try them all the way back to 27 yds. I guarantee that they will break targets hard. The only time that the faster shells seemed to make a big difference to me were on true straight aways-they got there noticably faster, but an X is an X is an X, no matter how impressive the break.The major difference in the effectiveness of varying charges, I suppose, is in the retained energy. Again, in trap targets where the distance to the target when it is normally broken is usually from 35 to 45 yards the amount of energy at the target can be "adjusted" by changing from 8's (or even 8 1/2's in hot weather and 16 yd targets) to 7 1/2's as the distance increases. I always had very good results with 1 oz of 8's for 16's, 1 1/8 of 8's back to 23 yds and 1 1/8-7 1/2's from 24 on back. I often felt that the 1 oz loads actually broke targets harder, and someone offered this opinion...the shot string is shorter than for 1 1/8 oz loads, and if you are dead on the target it all gets there at the same time (rather than being strung out more) and does seem to be more effective. In my case it became more a matter of comfort. The 1 oz loads didn't kick as badly and I was able to stay in the gun better. As a note of interest, I could never develop a 1 oz load of 7 1/2's with Clays that I really liked, so I always shot 1 1/8 oz when I went to the bigger shot. Edited by: Instinctive Shooter at: 3/18/03 7:54:38 am