Craigar45 Posted January 19, 2008 Share Posted January 19, 2008 I am going to be loading up some ammo for a friend doing some R&D on a new 10mm gun he is producing. We havent decided on bullet weights, but we do know we want to experiment with some hard cast lead at about 220 power factor. I am curious if anyone here has produced a load similar to this and what powders they used... This is NOT for competition, so I am not too concerned with smoke and recoil. As I said, these are test loads for a gun he is developing. I believe we will be using Oregon Trail bullets. That is a pretty fast moving lead bullet- probably want to stay away from hotter burning powders, yes? Suggestions? C Link to comment Share on other sites More sharing options...
HSMITH Posted January 19, 2008 Share Posted January 19, 2008 800X, possibly Power Pistol. 800X is probably the top velocity powder you will commonly find on the shelf for a 10mm. Link to comment Share on other sites More sharing options...
DougCarden Posted January 19, 2008 Share Posted January 19, 2008 (edited) From my Pinload days.....with 180grain lead FP.....Start at 8.0grains of Winchester Action Pistol, or what is now Repackaged as Ramshot "Silhouette" It will do anything and everything you need it to.......Arguably the best powder for 10mm out there......IMHO... DougC Edited January 19, 2008 by DougCarden Link to comment Share on other sites More sharing options...
HSMITH Posted January 19, 2008 Share Posted January 19, 2008 Good call Doug!! Haven't loaded Sil in 10mm but have used a bunch of it in Open gun loads. The biggest plus is it will actually meter decently where 800X is a lot like gravel in a powder measure, and it will be a good bit cleaner burning. Link to comment Share on other sites More sharing options...
Craigar45 Posted January 22, 2008 Author Share Posted January 22, 2008 Thanks for the feedback guys; turns out there are only 4 or 5 powders with published loads in the 225 p/f range... I know I am not strictly limited to published loads, but I think we will be starting with powders that can do it by the book. Any further suggestions? C Link to comment Share on other sites More sharing options...
mscott Posted January 22, 2008 Share Posted January 22, 2008 The 200gr load in Hodgdon's Longshot data should be a good one at 234pf. I'm sure you could figure something out for 220 grain bullets. Approach it carefully as all of the Loudshot loads I've tried have been a lot faster than their data. 200 GR. HDY FMJ 200 Longshot .400" 1.260" 7.0 1034 23,900 PSI 8.2 1172 35,000 PSI Link to comment Share on other sites More sharing options...
Bruce Posted January 22, 2008 Share Posted January 22, 2008 You might want to browse through the 10mm reloading section over at GlockTalk. If it has been spit from a 10mm barrel, someone over there has probably done it. Lots of reading, and testing documented on loads. The owner of DoubleTap Ammo, Mike McNett, posted a ton of different tests there over the years. http://glocktalk.com/forums/forumdisplay.php?f=67 Link to comment Share on other sites More sharing options...
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