yes you can but onaly riffled slugs
1940 is turing year of cooey model 840he manifat
cooey 410 gauge model 840 Winchester Canada. single shot
255920
150 - 200 bucks in .410
I have just acquired a cooey model 840 western Canada limited and I have done some research and talked to a few gunsmiths and from the info i have received a top-notch "perfect" model 840 will only run up to $275.00. If i was you i would keep it. It's a great little gun.
$50-$150 depending on condition. In Canada
No published sn data.
these cooeys were made in the 1950 to 60 era records are not available, value $50
Made in Canada
I found one on the internet for $195.... http://www.joesalter.com/detail.php?f_qryitem=5997
The Cooey Model 840 is a Canadian-made .22 caliber rifle that was produced from the 1960s into the 1980s. Given the serial number 79487, it is likely from the early to mid-1970s. The value can vary significantly based on its condition, but typically ranges from $150 to $300. For an accurate appraisal, it's best to consult a firearms expert or a recent sales database.
V THE 840 WAS MADE AS A WINCHESTER BETWEEN 1961 & 1965, IT'S VALUE IS LOW COMPARED TO THE M 37. I JUST PURCHASED A GOOD 840 IN 410 FROM A LOCAL GUN STOREW FOR 85.00 JS