[Beagle8U]

"What brand of .22 is the most deadly?"

It might be a scary sounding 22 Automatic ?

I own one that my grandfather bought new.

Winchester 1903 22 cal. Automatic. ( yes, they are labeled as automatic)

They were the first commercial 22 semi- auto but the normal 22 LR rimfire of the time were black powder and would foul the action after a few shots.

So Winchester made the 22 automatic chambers and cartriges slightly larger in dia. so they wouldn't fit in the regular 22 cal. and used smokeless powder.

I believe the thinking was the higher chamber pressures of the smokeless powder might damage the older black powder 22's.

[Hazcat]

So Winchester made the 22 automatic chambers and cartriges slightly larger in dia. so they wouldn't fit in the regular 22 cal. and used smokeless powder

So if you have a .22 from before 1903 it won't chamber modern .22?

[ExSoldier]

Okay, I've read this over and over...I confess...I don't get it. What's your point? 'Cause I'm not the one who said scary sounding automatic.