[MaxMax]

The short cartridge and extended lead was made almost by accident for the 1/9 twist of the AR.
1/7 twist is also good with that Aguila product. Also I keep that specific round in my .22 Bobcat
that isn't going to be accurate past 4 yards anyway, so may as well spit some big lead out of it.

Oh, and using those rounds will bugger up an AR really fast. Simply clean it out
using .223 for about five rounds. Ime.

[MHGinTN]

I usually shoot piston ARs, so I turn the gas completely off tot he piston system and avoid lead deposits into the gas system/impingement tube. I just recently built an impingement gun with a 16” barrel but mid-length gas tube. I’ll be shooting a lot of .22lr through it using the CMMG kit. I don’t intend to shoot the 60 grain subs through it since the impingement tube might be fouled from heavy lead at low pressures (compared to the 5.56 rounds it will also shoot).

I’m going to test the rounds in a variety of .22 tools, like the SR22, the 1022, and a couple of revolvers and a lever Henry youth model. I’m curious, and the ammo is available because most folks have not been introduced to it.