3 bottles of 750 liters of Alcool or wine is not allowed.
ONLY ONE of the following:
40 oz, or 1.14 liter of alcoholic beverage (Whiskey, Rhum, Vodka, ect.)
1.5 liter of Wine, or two of 750 liter or 53 oz
24 small bottle of beer.
http://www.cbsa-asfc.gc.ca/travel-voyage/ifvc-rpvc-eng.html#a2
Alcoholic beverages
Alcoholic beverages are products that exceed 0.5% alcohol by volume. You are allowed to import only one of the following amounts of alcohol and alcoholic beverages free of duty and taxes:
Alcoholic beverage limits
(While bottle sizes vary, the amounts listed are fixed.)
Product Metric Imperial Estimates
Wine Up to 1.5 litres Up to 53 fluid ounces Two 750 ml bottles of wine.
Alcoholic Beverages Up to 1.14 litres Up to 40 fluid ounces One large standard bottle of liquor
Beer or Ale Up to 8.5 litres Up to 287 fluid ounces Approximately 24 cans or bottles (355 ml each) of beer or ale.
You are allowed to import only one of the amounts listed in the table free of duty and taxes, as part of your personal exemption.