r/canadaguns • u/meowmixonroids • Jul 31 '26

Misc What’s the largest caliber rifle that’s available in the open market?

I was scrolling through Reddit earlier and came across a historical post featuring a Boys anti-tank rifle. It got me wondering:
What's the largest caliber rifle you personally own?
And out of curiosity, what's the largest caliber rifle that's currently available on the market?
Looking forward to seeing everyone's answers and maybe a few pictures too.

Cheers

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u/Dependent_Account603 Jul 31 '26

378 Weatherby brings you up there as well as the cartridges based on it. 338-378 and 300-378. The 378 necked up to the .460 Weatherby it becomes illegal over 10k joules.

It's freaking silly tho never heard of a crime committed with a Weatherby super magnum.

Oh if it's ignited by flint or match it qualifies as antique and there's no limit. Pirate cannons are a-ok.

2

u/meowmixonroids Aug 01 '26

I haven’t the slightest idea how a field gun from the 1890s isn’t anti material… not complaining

4

u/Dependent_Account603 Aug 01 '26

Reproduction 1890s cannons would be percussion and banned. Originals are a-ok.

2

u/Background-Way7794 Aug 04 '26

if its match , slow match or flint fired, a reproduction is fine like an original pre 1898. Here is a replica 1790 6 pdr French Iron letting go a 3 inch ball. Its using a 30 second match fuse for ignition over 2.5 pounds of single F.