360 Imperial Magnum

ChewyChewbacca

ChewyChewbacca

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Was a buddies place for coffee today and of course the talk inevitably leads to guns. He tells me that he has something that I might be interested in. Comes out with a plastic pail half full of brass and 5 boxes of loaded cartridges and a set of dies. First thing I look at the dies made by RCBS, look brand new only thing was the name. 360 Imperial Magnum, hmmm never heard of that one. Then I open up a box of ammo and the first thought was “Holy Crap, what is this thing?” It’s a monster. I thought the bullet to be a 9.3,which from what I can glean from little info I could find was right. Edit :358 The case I didn’t recognize, I guess because I never have had anything to do with Magnums.
Is there any firearms that are made for this round still out there? What does it compare to? Couldn’t find much info other than some guys from the lower mainland developed it then were bought out.
Who out there knows of this round?
Would be interested in finding out.
 
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First hit from a google search:
360 IMPERIAL MAGNUM
The Imperial Magnums .300, .311, .338, .360 and 7mm were introduced circa 1991 by the Imperial Magnum Corporation, Osayoos, British Columbia, Canada after buying the IMPERIAL trademark from Canadian Industries Limited and later IVI (Industries Valcartier Inc.) when they (IVI) moved away from the civilian ammunition market. It is based on the 404 Jeffery case and the shortage of quality 404 brass during the early 90’s lead to the demise of the Imperial Magnum Company. They were taken over by North American Shooting Systems (NASS) who renamed the cartridges as Canadian Magnum.
 
Aubrey came up with the Imperial Magnum idea before Lapua came out with their Lapua Magnum case and before Remington came out with the Ultra Mag case. He got screwed around with Lapua... I believe he wanted them to make the brass...

Based on a 404 Jeffery case but with the rim altered to a standard magnum size.
 
There has been a display at both the Chilliwack and the Kamloops Gun shows with several Imperial Magnums for sale.
Don’t know more details, but they are out there.
Iirc there might be a couple guys on the Island...Vancouver Island that may own one of these guns as well.

Rob
 
Down the rabbit hole I’ve started. Usually it’s a gun and no ammunition or components. The other way around this time. Time to see what’s out there. They are out there I’m told.
WTB here we come.
 
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It’s been fun looking around the net comparing this round to others and the RUM’s use the 404 Jeffery case with some minor differences to make their ‘own’ I suppose. It would be neat to own the 360 as it was designed and developed by a Canadian and others took the idea and put their own twist on it.
I counted my brass and I have 97 unfired cases that are loaded, 79 that have been fired and 20 that appear to have been loaded hot as there extractor marks on the case head and primers are gone. Haven’t done anything checking to see if they may have been resized. To have this brass and a set of dies that look new it has me pondering if it would be worth while getting one built.

Was just about to punch send button and the phone rang. It was a gunsmith that I know that I had left a message with getting back to me and after a chat to get one built is fairly reasonable. The reamer and gauges are special order but other than that actions and a quality stainless barrel are available.
What I would hunt with it around here is a whole different question. :). Going to have to give this some thought.
 
I wanted one at the time, unfortunately my income did not match, or even come close to my wish.
 
ChewyChewbacca said:
Hard enough to have to go to the horsepital to get retinas reattached after stopping at the chiropractor first to get your head screwed back on straight? :) wonder what the 360 would be like.
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I have a 300 and 375 rum. The 375 needed a muzzle brake, they say life and recoil begin at 40. Recoil was brutal on the 375. One can acquire recoil tolerance, however, projectile over .308 is pricey. So its wallet or teeth rattling.
 
ChewyChewbacca said:
Hard enough to have to go to the horsepital to get retinas reattached after stopping at the chiropractor first to get your head screwed back on straight? :) wonder what the 360 would be like.
Click to expand...

Recoil was about the same as my 338 Lapua in a sporter weight rifle. Not quite chiropractor territory (I have a lightweight 340 Wby that will do that for me), but it certainly got my attention. And a special thanks to Rembo for the opportunity. - dan
 
nowarningshot said:
I have a 300 and 375 rum. The 375 needed a muzzle brake, they say life and recoil begin at 40. Recoil was brutal on the 375. One can acquire recoil tolerance, however, projectile over .308 is pricey. So its wallet or teeth rattling.
Click to expand...

The .375 Ultra is my sweetheart round. It can jump around a bit, but not as much as a heavy loaded .416 Rigby or one of the cartridges copied from it with Weatherby stamped on the case head. I can hold the Ultra for 5 rounds prone, but only 3 for the .416. The price of even .30 caliber bullets now is shocking, particularly if you want Nosler's name on the box.
 
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