G29 todays chronograph results
All of these loads are seated to 1.260". Some Top Brass, some starline so read carefully what I have listed. All of these are within manual limits except for the 180 Nosler, its right at Noslers Max and I am using different components.
KKM precision barrel
10.3 grns 800x 155grn Silver tip hollow point. Starline case, CCI 350 Primer
Not very happy about the large spread. I might re-test this later and re-verify to make sure it wasnt a fluke.
10.3 grns 800x 155 grn Speer GDHP Top Brass case, 350 Primer
Another one I'm not real happy with. Maybe a different primer, or again a fluke of the chronograph.
9.5 grns Power Pistol 165 grn Precision Delta FP. Top Brass case, winchester large pistol primer.
Very satisfied with this as a practice load.
Now the last one. Noslers 180 JHP. Nosler provided me some reloading data and called for 11 grains AA #7 max, winchester case, WLP and claimed a 1190 out of a 6" barrel. Not very impressive...
Nosler 180 JHP. 11 grains of AA #7, CCI 350 Primer and top brass case.
This is out of a G29 giving up 2+ inches of barrel to their test and only off by 26fps. I believe there is room to grow here, head expansion was not an issue at 11 grns.
Conclusion....I about set on Accurate Arms #7 as my go to powder for 10mm. I'm just not having very good luck with 800x for whatever reason..maybe a different primer is in order, or maybe it is what it is. Power Pistol works fairly well also, but has a bit of blast too it. I will be trying Ramshots True Blue soon and will give it a good workout with the various projectiles I have on hand.
Last edited by ctkelly; 06-09-2010 at 15:02..
Reason: barrel info