ALL the calibres you guys are talking about were produced or imported from the UK by CIL, right up to 1968.
THAT was the year that the Liberal-annointed Official Ammunition Supplier of Canada, Industries Valcartier Incorporees, took over the old CIL ammo plant, trademarks AND the market.
They put 40 types out of production overnight and destroyed existing stocks, just to keep it off the market. I had .43 Mauser and .455 Colt brass on order at the time.
All they were interested in was the Government contract for the Forces; the rest of us could go to hell and we very nearly did. Thank God for Remington, Winchester and Federal; IVI would not even sell .308W to Canadians.
GONE: .22WRF. .22RS, .22R, .22WRA, .25RF, .25 Stevens, .32 RF Short, .32 RF Long, .38 RF Short, .38 RF Long, ........ how many more do you want? The .43 Mauser was selling better than it had been for 30 years (it was receiving notrice in the US gun press). It went. So did the ICI link: Kynoch ammo in their complete range, including .405W, .35W, .577 Snider, .577/.450 MH and everything from .450 Alex Henry to .600 Nitro. Canadians were left with .30-30 for hunting; even .303 was not reintroduced for a year. GONE were .25-35, .25 Remington, .30 Remington, .32 Remington and 20 MORE. The ONLY handgun round available to civilians was .38 Special with the 148-grain WC Match bullet.
THEN the quality started to take a nosedive.... until I smartened them up with a newspaper article. They tried to sue me for telling the truth. Their own lab told them that I was right..... with the brass that I sent to them, brass that they made which had FAILED.
We had it SO much better when CIL was running the show: good ammo (best in the world, many said) and a RAFT of types that were available nowhere else. And CIL made MONEY on all those obsolete rounds. IVI just could not be bothered; they had the Government contracts sewn up........ until the US refused to buy the stuff and the RCMP stopped using it and our own troops were losing morale because they KNEW the stuff was junk.
They have smartened up a BIT, but we are still a very long way behind where we were, 45 years ago.
I believe that a Manufcturing permit runs $5000 a year.
This country does not WANT domestic manufacturing of ammunition.... or of almost anything else.
Best bet is to persuade Aguila or CBC to make what you want, import and sell.
It's The Canadian Way, y'know.