Hi Phil, I was going to wait until after Sunday when I am up at Bisley shooting in the last round of the Southern Hunters, but I did do some power testing the other day with some interesting results. As you can see on the first photo Phil re-machined the lead-in after the original one was found to be off center The second photo is off the new slightly shorter PPP (Phils Pellet Pusher) Third photo shows how much easier it is to thumb in the pellets thanks to the new lead-in. Fourth is how far the pellets sat with the PPP. The next photo is after putting about 20 pellets through the rifle, if you look closely you can see some slight rub marks on the inside bottom part of the pellet valve sealing stabilizer housing ting-a-majig (sealing bolt?) Decided to fit an even smaller PPP With the smaller PPP I didn't resit the barrel further down as it looked good as is. Unfortunately the bolt still felt like it was crunching when closing it and it took more effort to fully close it home and to release it, it also look's like the PPP was still causing some pellet flaking. So have decided to go back to thumbing in the pellets as the bolt feels normal and not being forced to close. The power was set with the longer PPP and 10 pellets were used for each string and came straight from the tin. Long PPP High..788...11.58 Low..781... 11.38 Spread 7 .... .20 Av .....783.....11.45 Short PPP H....776.....11.24 L....766......10.95 S.... 10 ...... .29 Short PPP with the barrel re-ajusted H.....778.....11.31 L.....768......11.00 S...... 10 ....... .31 A.... 774......11.18 Without a PPP H...782.....11.43 L...775......11.19 S.... 7 ...... .24 A...778.....11.29 I reajusted the power to where I know that the reg seems to work at its most consistent and just thumbed the pellets home. H....787.....11.56 L... 783......11.44 S.... 4 ..... .12 A...785 ....11.48 as you can see the work that Phil has done seems to be working and the down range grouping has improved a great deal, with the pellets hitting one after another bang on the mark with extremely tight groups at 45y and a very straight flight, before the barrel work the goup's at 45y were good but rhe pellets would be very slightly either side of the cross hair line, with odd pellets flying off to the right. Now looking foward to giving it propper try out at Bisley.