Years later (2007 or 2009) when the Ruger Charger pistol came out, I could no longer use (legally anyway) the 25 round magazine even though it was designed for 10/22 (packaging even says that), because apparently it would fit into a 22 pistol which has 10 round limits for their magazines.
Yet we can use 10 round LAR-15 mags, designed for LAR15 pistol, in an AR-pattern rifle, like this Carmel.
Ironically these two are the same law being interpreted in the same (and as some may say, incorrect) fashion by the RCMP, both retroactively.
Their original interpretation of the handgun to rifle cross-compatibility capacity was:
- If it's designed for a handgun
first and foremost but fits in a rifle, then it's limited to 10. See: most PCCs.
- If it's designed for a centrefire semiautomatic rifle that came first, and the
handgun came after, then it's limited to 5 as it was for a centrefire semiauto.
The 10/22 was a rimfire and therefore had no capacity restrictions whatsoever. So it lived in isolation and peace for decades.
Then one day our all-knowing government decided to call the 10/22 Charger a "pistol", and retroactively applied the first rule incorrectly, therefore limiting all 10/22s to 10 rounds from infinity, even if the receiver of a 10/22 rifle and "pistol" are identical, and anyone can swap the stocks around with an allen key in 30 seconds. Had they applied the second rule, that would mean the 10/22 Charger "Pistol" can now have 25-round mags - and I don't think our performative government wants to have a "pistol" that exceeds 10 rounds. On paper these "loopholes" makes their gun control measures look bad, although their real-life impact on public safety are nil.
Enterprising individuals also asked the RCMP if they can do the same to the LAR-15 "pistol" and its centrefire magazines. And in a move that defies all odds, the RCMP said yes and also (incorrectly) applied this rule so that certain STANAG mags that are explicitly marked "designed for RRA LAR-15 Pistol" can now enjoy a 10-round capacity.
I hate to be that guy, but IMHO if we apply the same standards from day 1, neither of these gotchas should exist: The 10/22 should not have a 10 round limit and the STANAG should have a 5 round limit. But hey, the government bent the rule twice so we ended up with two quirks in our already complicated laws.
And once a precedence was set, others followed suit. The .22LR Vector was limited to 10 because the Vector SDP. The XCR-L Pistol was brought in so 7.62x39 and 7.62x51 STANAG mag capacities were raised from 5 to 10 as well. The list goes on and on and on.
Sorry for the rambling but that's my personal, unprofessional opinion on this whole "pistol magazine" BS.