Share information about reloading the 22 TCM cartridge
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By dungheap
#14590 earlwb, if you'd like to try some of the Lee .22 Bator bullets, message me and I'll mail you some. They may be a little over 40 grains cast from linotype, but typically cast bullets that are desirable run a little heavier than their jacketed counterparts anyway. The profile of the .22 Bator bullet looks like it should be suitable for loading to .22 TCM magazine length. I have not tried any of them in the .22 TCM rifle yet, and even if I did, my results probably wouldn't do most others any good because of the twist diference.
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By DoubleJ
#14891 My bators drop at around 52 grains, gas checked slightly more. I've run them in my five seven around 1400 FPS with no leading, using a check and TAC lube. The Lyman 225450 works better though, so I bailed on the bators. I placed an order for a G17 upper though, and with some cut and formed 223 brass I dummied up a cartridge, bators should be perfect. The length and weight concerned me though, TCM has a slower twist than the five seven, but according to a Barnes stability calculator I found, at 1500 FPS (which should be cake with a coated boolit and H110), the bators should be completely stable. If not, there is a man on the internet that can mill up to .100 off the top of the mold (gas check shank is about .082) and bring them down to .440 or so and maybe 45 grains, un checked. I think hi tek coating would be a necessity at that point, but no big deal since I already have a coating setup for my .458 SOCOM. I've also played with coating and lubing using TAC, Alox, and 45/45/10, and it may be overkill, but anything is better than a leaded barrel. Just FYI, us five seven people have hit 1800 with hornady 55 FMJs. The TCM creates similar energy levels, so I don't see that being too far out of reach, especially with lead.