Winchester M22 .22 LR for Semi-Autos

Steve Johnson
by Steve Johnson

Winchester’s new M22 round is quite compelling. It features a 40 grain round nosed lead bullet at a high velocity of 1255 fps. The round has been designed specifically for modern semi-automatic rifles feeding from high capacity magazines (ie. .22 black rifle clones).

Winchester M22

For comparison, 40 grain .22 LR bullets are usually loaded for subsonic velocities. High velocity .22 rounds are generally 36 grain bullets being pushed out the muzzle at 1328 ft/s.

The M22 round will go on sale later this year and will be sold exclusively in bulk 1000-round value pack.

UPDATE: It has been pointed out me that other brands, like CCI Mini-Mgas, have 40 grain bullets being pushed at super-sonic speeds. Sorry about the mistake.

Steve Johnson
Steve Johnson

I founded TFB in 2007 and over 10 years worked tirelessly, with the help of my team, to build it up into the largest gun blog online. I retired as Editor in Chief in 2017. During my decade at TFB I was fortunate to work with the most amazing talented writers and genuinely good people!

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  • Rick Rick on Mar 14, 2013

    Found this overview of best places to find .22LR Ammo today:

  • Bill Felkey Bill Felkey on Jun 22, 2013

    I got a 1000 of these and took them to the range. I am testing 22 varieties of .22 LR for how they shoot in a Savage FV-SR bolt action. They work fine but the odd thing is they are unpredictable on whether they go supersonic or not. They are rated at 1255 fps but so far many do not got supersonic when all should. I did a weight sorting of them and have shown that this does not reliably predict the outcome. The bullets weigh between 51.3 to 51.8 grams. Variables would include brass, bullet, primer and powder. Quality control should be suspect at least on my first 1000.