Texas gun law?

[Nash B.]

.22lr can be used in either a pistol or rifle.
So can 9mm, 40s&w, .45acp, .38spl, .357mag, .44mag, 45LC, 500s&w, just to name a few.

You have no proof that the ammo being purchased is going to be used in a pistol. Sure, the dealer/seller has discretion on wether they want to sell it to the customer, but if they say it's for a rifle and you can't prove otherwise then there is no legal restriction on them buying it if they are over 18.

.22 Long Rifle is a rifle cartridge. The others that you listed are handgun cartridges, regardless of how many rifles may be chambered for them.

[Bassics]

So is 45 colt a colt cartridge?

Seriously, you ever come across any of this? I never have because i am old.

[Nash B.]

Colt didn't make any rifles heh

My dad has a few revolvers and matching lever action rifles, including .45 Colt.

[John -- '02 HAWK]

.223, 6.5 Grendel and 6.8SPC are also considered pistol cartridges as well

http://www.eliteammunition.net/newsletters/newsletter/7385257/81014.htm

[Mr_Fiux]

I'll you a handgun. I got a really nice 380 auto Lorcin that likes people to shoot it.