Ammo

[JoeKat]

Is the5.56 Federal XM855FAC1 62 grain fmj boattail a good round for my M&P 15 Sport?

[Kodiakco]

It will work. Is it a "good" round, you will have to test and find out if YOUR rifle likes it.

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[MichiganScott]

If the price is right, it's a good round. It's not known for gilt edged accuracy, however.

[oneyeopn]

In my Sport I find the XM193 far more accurate than the XM855 but YMMV.

[MPDC]

XM 193 is good stuff. So is the 855 which is considered penetrating because of the steel core.

I have found them equally accurate when adjustment is made for the weight and charge using Nikon's spot on program.

For target shooting, I prefer the 193 because of price mainly and reserve the 855 for "other" possible uses. Then again, I'm probably more nuts than most.

The only .223 ammo I keep is specific LE type ammo designed for anti personnel use in an urban enviornment. I don't "hunt" anything, per se. IF I did, crocks or alligators IE, I would prefer having the 855 to penetrate the skull. Same with boars or any thickly skinned or muscled prey.

[JoeKat]

Thanks for the info.

[GMC man]

One of the problems I have had with the XM855 is the local range I use doesnt allow them due to the fact it tears up the berm and its the only range that goes up to 500 yards here. its also more per round then the XM193 and not as accurate, and I personally just don't have a need or use for a steel core round.

[flyer91]

I like the 193 for soft targets up to 100 yards plus, because of it's lethal fragmentation.
Also, I live in the California Sierras and the steel cored anything can be a real fire hazard during the summer months, if I hit some blue granite near dry weeds.

But, if I needed to have penetration through something like a car door in a fire fight, I would want the heavier steel cored 855, which also holds it's accuracy out past that of the 193.
Up to about 130 yards or so (IME) they are both equally accurate. But as you get beyond 150 yards the 855 maintains it's grouping better, and progressevly so the farther out compared to the 193.

Sometimes I can find PCM M193 for less than PCM 855 and other times it's just the opposite.
Recently I bought a 1000 round case of PCM X-Tac M193 for $369 delivered from ammoman.com, and found PCM X-Tac 855 for, like ..... $330-something delivered, when googling for the the best price on the PCM 193 X-Tac.

I also like the PCM X-Tac because it uses boxer primers, and that makes it easier to sell my "once fired" brass for about $.10 each ...... which gets me closer to the price per round if I reloaded for plinking (which I just don't want to do).