Share information about reloading the 22 TCM cartridge
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By mike
#15318 So all the usual warning come into play, these loads work in my gun, if you are going to try them start low and work up in your gun, etc. etc.

So as a starting point, in my handgun the factory load shoots out from 2015- 2109.
I started loading enforcer at 9 grains and worked up in .1 increments, my first ladder went from 9 grains up to 10, velocities moved from 1600 to 1968 fps at the even 10 grains. The gun cycles very well the recoil and fire ball is mild to say the least.
So this weekend I loaded up the next ladder starting with 10.1 and ending at 10.6. Again the gun cycled nicely, and there were no signs of over pressure. I was at the local indoor shooting range so I was not able to chronograph these loads. But attached are photos of both the factory case used as my test standard, and the last case fired at 10.6 grains. As you can see the factory case (right side) has the primer starting to flatten, where the enforcer at 10.6 does not show any signs of pressure yet. In the second photo you can see the body of both rounds from the side that was facing the ramp in my barrel.
Next week I am going to try 10.7 to 11 hopefully over a chronograph. More to come.
Attachments
20180909_235722.jpg
factory on the right, 10.6 grains enforcer on the left
20180909_235722.jpg (478.48 KiB) Viewed 686 times
20180909_235747.jpg
factory on the right, 10.6 grains enforcer on the left
20180909_235747.jpg (274.29 KiB) Viewed 686 times
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By mike
#15319 Okay so today I finished the rest of the ladder, I went from 10.7 to 11.2 this is the second time I have done this ladder, mainly because the results have me scratching my head, at 10.7 I got a speed average for three shots of 2076, at 10.8 it was 1971, at 10.9 it was 1916, at 11 it was 2010, 11.1 was 2052, 11.2 was 2060.
I have never seen this kind of behavior in a ladder.
The powder behaved just like normal up until 10.8 then it was like the powder just took a step backwards, then started to move back up, the primers started to flatten once the speed started heading up again. I will attach a photo below.
I do not think I am going to do the ladder again and am pretty sure 11.2 is all I am pushing it for now.
even at 11.2 the recoil, blast and fire ball are nowhere near as bad as factory.
Attachments
20180923_142033.jpg
20180923_142033.jpg (422.07 KiB) Viewed 342 times
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By APRock
#15320 Thanks for the posts. I have noticed that "phenomenon" in some of my reloads as well - just not with Ramshot and with 9mm rounds. At a certain point, velocity takes a dive. Never could figure that out, especially when it climbed again with a little more increase.