30-30 Remington

[Little Dutch]

Interesting. 30-30 Remington Autoloading




Looks a lot like .30 Remington to me too...again, Interesting.
Winchester 30 Remington Auto Crouching Bear Box


ETA, here is a clear answer. Again, this is very interesting!:

THE CARTRIDGE COLLECTOR

" It doesn't make sense to me that Remington could introduce rimless versions of Winchester's cartridges as their own without some resistance from Winchester, yet Remington initially named their thirty caliber cartridge the .30-30 Remington, and not only did Winchester appear not to have a problem with this, but they produced cartridges with the .30-30 Remington headstamp from 1907 to about 1915. "