Armscor Bullets 22TCM (.224 Diameter) 40 Gr. JHP- Bag of 100
Good morning.
As some of you may have seen, I have one of the new RUGER-57 pistols. Since I haven't had much luck finding ammo locally I've been loading my own using the standard 40gr Hornady V-Max.
Anyway, I wonder about the bullet linked above. It is meant for the 22 TCM but should work in the 5.7 just fine. That's what I'm assuming. But before I order a bag I wanted to check here and see if anyone has used it with negative results.
TIA!
As far as how the bullets themselves perform - quite well. This is the bullet Armscor uses in their .22 magnum ammo which is loaded for rifle velocity around 1,875fps which puts it right in there with most 5.7x28 loads from the pistol. This is also the bullet used in factory .22 TCM ammo which clocks around 2,050+fps from a 5" barrel. In gel tests the bullet has performed very well, being a lead-core with copper jacket it delivers penetration in the "FBI zone" with nicely mushroomed shapes that hold together. The Armscor bullet has a fairly thin jacket and generous exposed lead HP nose.
The only downside I see in using in the 5.7x28, specifically the FsN or the Ruger 57 is these pistols don't have feed ramps. They have a beveled barrel with the cartridge noses sitting "right there" and the pointed nose design tends to make the bullet go in without a problem. With the amount of soft lead nose the Armscor bullets have I suspect at the very least you'd be looking at deformed noses which could lead to a feed stoppage but of course the only way to know one way or the other is to load some up and see what happens.
Armscor is also selling their 39gr. "stub nose" bullet for the .22TCM9R and you could use this in 5.7x28 no problem because the rounded nose has jacket all the way to the HP opening. They are not very long so you'll need to seat them out somewhat which isn't a problem.
A better option that only costs a little more than the Armscor bullet is the Speer 40gr. Spire Point. This is a lead core, copper jacket bullet with a steeply tapered tip and a tiny - about 2mm exposed lead tip. Being lead core they will be short compared to the 40gr. Vmax, and the 36gr. Barnes, but they do have completely different terminal characteristics. The Speer bullet has a rather thick jacket since it's built for the .22 Hornet rifle which can reach 3,000fps. This means at typical 5.7x28 handgun velocity of around 1,950-2,050fps it will tend to penetrate deeper with less expansion, but this, combined with the steeply tapered nose means when it hits steel plate, the nose compresses inward and the round punches through - 3/16" steel at the above mentioned velocity. I have never tested it, but I suspect this bullet will also go through a TL3A vest quite consistently.
Another bullet that's not "cheap" but is a sort of "poor mans penetrator" is the Barnes TSX 45gr. This is a solid copper, banded bullet with a tiny HP nose and a long, streamlined profile with a BC around 0.177. This bullet cannot be used in the .22 TCM, and certainly not the TCM9R, though I suspect it would work if loaded in the 5.56x24 case and fired from a .22 TCM size pistol such as the 1911 which has a 1.275" allowable overall length...haven't tried it yet, but eventually I may, though for those with the FsN and the new Ruger 57 it may be one of the better all-around choices. It seats to around 1.580-1.585" and feeds perfectly. A moderate collet-style crimp over the front driving band locks it in the case and enhances velocity, though of course crimping should be used when working the load up, never added to a previously developed load. At a nominal 1,800fps this bullet will penetrate TL3A and being long, make a nice tumble once on the other side in gelatin, which I suspect means it would be quite nasty on the famous "meat target"! Being solid copper, when it hits mild steel plate the nose will tend to "pinch down" rather than expand and help it auger through. It's also one of those I'd like to test on a thick slab of Lexan.
Another inexpensive bullet that I know works in the 5.7x28 is the Speer 33gr. JHP. This bullet can be driven to 2,200 fps and being built for the .22 Hornet, is pretty heavily constructed compared to bullets made for the .22 magnum. Some may prefer this bullet over the 40gr. Vmax which is a lightly built bullet, but then the Vmax is a surprising performer on the "meat target"....not a bullet I'd want to get hit with.