Morning Rick, there should be a bunch if I'm not mistaken

Ken

Kimber Target II  LS

Hornady 200 XTP  , AA9 , 12.6gr ,  1202 fps , 2.06" 5 shot group at 50' shooting supported off a rest.

Berry's 180 rnfp , AA9, 13.3 gr , 1231 fps , 2.79" 5 shot group at 50'  shooting supported off a rest.

     Found this old thread very valuable so here's our contribution and attempt to revive it.

   Montana Bullet Works 200gr. WFN GC, 12.5gr #AA9, Winchester brass, WLP, 1.250" OAL.  1262fps avg. from a Guncrafter 1911 (6" barrel) and a DW Bruin.

     Natl. Bullet Co. 180gr. FMJ FP, 6gr. Win 231, asstd. cases, 1.250 OAL. 1092fps avg. from the GI 6" 1911 and the Bruin.

    We found it interesting that there were so few loads here using W231 powder. Although not ideal for the 10mm, many Practical Shooters have a LOT of it around. Out of curiosity, we are trying it with Hornady 200gr. XTPs.  If you've used W231 in the 10mm we'd like to see your results.

In some ways, I hate to necro a topic, but thought some of you may appreciate it nonetheless since there isn't a ton of carbine data.

I got my 16" AR finished and was able to put my first round of loads through it.  I tested 4 different powders but only 2 bullet weights at this point but wanted to share what the chrono said.

The #9 powder with 155 gr xtp hornady was by far the most impressive speeds.

15.9 gr no. 9 powder
155 gr xtp
1.25" col

1748
1750
1780

*I had two chrono errors that I threw out


1769 fps ave
1077 ft lbs

---------------------------

155 gr xtp
7.2 gr titegroup
1.260" col

1511
1507
1504
1499
1483

1500 fps ave
774 ft lbs
-----------------------------------
155 gr xtp
9.4 gr Longshot
1.260" col

1609
1616
1555
1576
1554


1582 fps ave
861 ft lbs
---------------------------------------------

180 gr armscor flat tip
8.6 gr BE-86
1.255" col

1444
1448
error
1432
error

1441 fps ave
829 ft lbs

Nice, Thanks John!

Anybody have any 220gr cast data??

Closest I have is the pull down data from the that section/post.

https://www.10mm-firearms.com/factory-10mm-ammo-pull-downs/pull-down-master-list/

Click the link for the google doc, then filter by bullet weight.

Looks like Underwood is using Longshot and is well over the published data.

I'll note that I was beginning to see some flattening of the primers, but no swipes or bulges or anything of too much concern.  Though, I suggest backing it off slightly more than where I left off and working your way up to it.

Hornadys manual 9 said you could go up to 14.9gr of powder, but as mentioned, I didn't get that high myself.  Perhaps the longer barrel retained a little more pressure curve than what they were using with a 5" pistol dropping the pressures more ?.  This is why you always start low and work your way up.

Anyway.

16 inch barrel

light crimp

Armscor 180 gr jacketed truncated nose
1.260" COL  (probably closer to 1.258")
14.5 gr #9 powder

1560 fps average
972 ft lbs energy

Got it - Thanx