dfletcher
Blackhawk
parabellum said:Yes, and I can lock fully-loaded magazines into my M1A rifles with the bolt closed, without crushing cases.Architorture23 said:My Mini 30 loads 5 round mags under a closed bolt just fine, fwiw, so I do not think the fact that the action derives from a Garand to have much to do with it.
I suspect Ruger designates their magazines as 10, 20 or 30 round capacity because that's how many rounds the magazine holds when standing alone. Whether the magazine can be attached to a rifle with a closed action isn't part of their equation. That a 20 or 30 rounder can be inserted fully loaded, while a 10 rounder can not, is due simply to the slop created by so many tapered cartridges stacking in the higher capacity magazine. I suspect also that the 10 rounder is manufactured a bit tighter due to the importance of complying with CA limit restrictions. The current 10 rounder may even be the same as the one during the federal AW ban.
I don't think there is a connection - any consistency, I suppose - linking the nomenclature of the 3 to actual function. Clipping the 10 round magazine follower legs a bit would probably allow inserting them with the bolt closed.