Need magazine indentification

[bsimardjr]

These two .22 magazines came with a buch of stuff that was given to me and I was hoping somebody could tell me what they are for. One holds six rounds the other holdss 11. The smaller one is stamped CBC on the baseplate.

 

[jhrosier]

They look like Remington rifle mags.
I have one like the larger and it's a 10-rounder for my Model 513.