Greetings, I just came back from the range and wanted to post my test results for .45 ACP using 230g XTP HP & Hodgdon Universal powder. This is the first time I have used these two together. Hornady "Custom" Ammunition (factory rounds) 230g XTP HP +P Velocity - Box listed @ 950 fps / 887.6 fps my 5 shot average OAL - 1.230" Test Date: 12/16/2012 Case - Federal (used) Tag - FC Case length - 898" (standard) Primer - Federal Large Pistol Primer #150 Bullet - 230g XTP HP (Hornady lot #2110089) Bullet length - .637"-.638" Bullet DIA - .451" Powder - Hodgdon Universal @ 6.4g Powder range -5.9g up to 6.6g Powder burn rate - #32 (Hodgdon) Test charges - 6.0g - 6.2g - 6.4g Bullet seating OAL - 1.230" Crimp - light Velocity - 942.67 fps (my 6 shot avg @ 56 degrees cloudy with no wind) Standard Deviation - 18.26107 Test gun - .45 ACP G21 w/4.60" barrel Individual test numbers: 6.0g - 899,874,832,844,899,846 = 865.67 fps / SD = 29.26203 6.2g - 927,934,942,887,881,896 = 911.17 fps / SD = 26.25579 6.4g - 959,964,951,938,922,922 = 942.67 fps / SD = 18.26107 Test firing was done from a bench & pistol rest, then from a standing free hand position @ 15 & 25 yards. All test charges fried without any issues or sign of over/under burn or excess pressure. In this test the charge weight of 6.4g gave me the best over-all performance. This was a very nice (but firm) firing round, my G21 handled this very well. Re-acquiring my target in a rapid fire method was fast shot after shot. All-in-all for a bit more of a stout load this I am very pleased with this test and the results. Just some more data to chew on.