There are a few threads already running with some data on these bullets, but some are specific to BE-86, etc. and I did not want to hijack those threads. As I mentioned in one of those threads, I have been loading the new-style RMR JHP (Jake calls them "Multi-Purpose Rounds" or MPR) at a COAL of 1.125". I know a lot of folks are incredulous that these can chamber and fire, but they do work fine in my SIG P226 Legion SAO. The problem for me is that they WILL NOT chamber in any of my other guns, so I decided to work up a new TiteGroup load with a shorter COAL of 1.06". Plunk tests showed that these shorter cartridges chamber fine in the rest of my guns, and I am happy with this compromise. My previous load was 4.1 gr of TiteGroup at 1.125". I am aiming for slightly above Minor Power Factor (125), so slightly over 1,000 fps, and then a bit more as a safety buffer. I figured with the shorter COAL, I would need to go a bit lower than the 4.1 gr I was loading previously, so I made some test loads at 3.9 gr, 4.0 gr, and 4.1 gr., all at 1.06", and then I compared the chronograph data with the longer loads at 4.1 gr. Here are the results: Bullet Type: RMR JHP Bullet Weight: 124 Powder: TG Weight: 3.9 COAL: 1.06 Primer: CCI 500 Case: Mixed Stats - Average 1028.60 fps Stats - Highest 1090.00 fps Stats - Lowest 994.00 fps Stats - Ext. Spread 96.00 fps Stats - Std. Dev 28.49 fps Avg Power Factor 126.36 --- Bullet Type: RMR JHP Bullet Weight: 124 Powder: TG Weight: 4.0 COAL: 1.06 Primer: CCI 500 Case: Mixed Stats - Average 1036.60 fps Stats - Highest 1054.00 fps Stats - Lowest 1014.00 fps Stats - Ext. Spread 40.00 fps Stats - Std. Dev 13.08 fps Avg Power Factor 127.05 --- Bullet Type: RMR JHP Bullet Weight: 124 Powder: TG Weight: 4.1 COAL: 1.06 Primer: CCI 500 Case: Mixed Stats - Average 1054.00 fps Stats - Highest 1072.00 fps Stats - Lowest 1026.00 fps Stats - Ext. Spread 46.00 fps Stats - Std. Dev 15.72 fps Avg Power Factor 129.58 --- Bullet Type: RMR JHP Bullet Weight: 124 Powder: TG Weight: 4.1 COAL: 1.125 Primer: CCI 500 Case: Mixed Stats - Average 1049.43 fps Stats - Highest 1089.00 fps Stats - Lowest 1002.00 fps Stats - Ext. Spread 87.00 fps Stats - Std. Dev 32.87 fps Avg Power Factor 129.21 A couple of these sets have fairly high ES and SD numbers, but that seems to be pretty common with TiteGroup. I am measuring the powder with my Dillon Powder Measure, and then verifying every load on my scale. I did have some slight COAL variation as I dialed in the seating die a bit more as I went along. This was certainly the case with the 3.9 loads at 1.06". What surprised me about this data was the small difference in avg velocity between the same loads at 1.06" vs. 1.125"... only 4.57 fps. I guess the 6.5 thousands did not change the velocity that much at all, certainly less than I expected. In fact, I am probably going to just keep loading 4.1 gr of TiteGroup, even with the shorter COAL since these fit right into my PF range, and were the most accurate of the three loads with the shorter COAL. AS ALWAYS: Use these loads at your own risk, and ALWAYS start low and work up, checking each load as you go for over-pressure signs and high velocities. You assume all risk, and you should always consult a reliable loading manual for more accurate and safely tested loads.