Well I cannot get pic to post even the small file of 88KB using browse attachments uploading that and insert image. And alt+P and alt+s,  Oh well

[attachment deleted by admin]

Shadow thanks, when I have more data I will. It is an amazing carbine, 2400 gave me SD;s of 3 and 4 and shot very well just not the WARP speed velocities that I have been seeing posted on forums. I would rather be accurate than fast because we shoot longer ranges, 7-25 yards is boring unless you are shooting at golf balls. And the 45acp units I have we shoot them at a 100-yards with a Red Dot, at clay pigeons on the berm and rarely miss so I know the 10mm will be impressive, that's why I put a 1-6X scope on this one.

Shadow thanks, I have not had any unburned powder and with a coated bullet I have worked up slowly until I started to flatten primers and quit. And there is PLENTY of room even with a 200gr bullet to load enough 2400 to get excessive pressure. I found a old thread from 2008 where two pages of chrono data was posted, very detailed and most loads were 165 to 180 gr and that guy came to the conclusion that the lighter bullets benefitted more from the slower powders and longer barrel. The rifle is amazing, and Power Pistol and 2400 so far have been best. I will try LilGun because I have a bunch for my 458 SOCOM and I bought Blue Dot and CFE Pistol today. Spent the afternoon looking and calling for AA#9 and there is none in Central Texas. 2400 shot a 5/8" CTC group at 50 yards with 200 gr XTP, Federal LP and was very soft to shoot, my daughter would have loved it.

Max load from all the reloading data I could find, I worked up to it, but I Boran Nitride coated the 200gr XTP's in bulk before loading. The Boran Nitride drops the friction and pressure dramatically so I don't want to post the charge and someone read it and shoot a naked bullet because in a rifle it would be way too hot without the coating. When we fired the Boran coated bullets, the primers looked normal and no pressure signs on the brass and I shot one group right after another and never stopped because I wanted to get done before the range closed and the barrel never even got warm.

I just got a Mech Tech Systems 16" carbine upper for my Glock pistol. I have a bunch in 45acp but this is the first 10mm. Trying to use slower powder to keep pressure down and use the long barrel for velocity. Tried HS6 and 296 and no good, tried a ladder of Power Pistol and 2400 and the SD's were 3 and 4 but velocities were from 1115 to hottest load was 1180fps. And both those grouped well but I expected more speed from that carbine barrel. With 30 degree temp swings in one day in Texas I am trying to stay away from temp sensitive powders.  Any suggestions would be appreciated from anybody that has loaded for a longer barrel.