So… when you read or hear warnings about low power ammo and long barrels… Heed them!
Been playing around with some .22 Aguila Super Colibri, which are a 20 grain bullet over no powder; primer only. Supposedly a 550 fps muzzle velocity… Out of what I’m not sure. I’ve read they’re designed for use in pistols(revolvers, it would never cycle a semiautomatic) only.
I like them because they’re so quiet. Even out of my 4″ Bearcat the report is a mild pop, barely a sharp crack to it. No hearing protection needed, and you’ll never annoy a neighbor with them.
Figured what the hell I’d try them in my 1953 Marlin 39A (only non semi auto .22LR rifle I have). Bonus is they are shorter than the length of a standard 22LR; I can get 22 of them in the gun!
Left to right; Standard Federal LR, Remington Shorts, and Aguila Super Colibri.
Down side is that this rifle is old school, and has a full 24″ barrel.
Every inch counts when your building velocity, I was betting they’d be faster than 550 out of a rifle length. But every inch is against you on low power rounds.
That’s the tip of the bullet that’s stuck in the tip of the barrel!
That was the first round I fired. Popped it out with a cleaning rod.
Then I reloaded. 🙂
The next 21 rounds all fired and cleared the barrel fine. The first one was the lower one in standard velocity spreads? Bore fouling? Weak primer? A fluke? Who knows.
They’re accurate and fun at backyard range, but you better be damn sure you can see or hear them hit something! There is no recoil and basically no report, the hammer fall click is louder!
If I get some time to get it out I’ll fire a few over the chronograph.
And yes, in case your wondering, these are “Super” Colibri… There is a standard non super version, same bullet, at a little over 100 fps slower! If I get any of those, I definitely Won’t be trying them in long barrels!