At least 15,000 gun owners will get cheap shots at the upcoming Pacific Northwest Sportsmen’s Show, opening Wednesday at the Portland Expo Center. That’s how many permits will be issued on a first-come basis to show attendees – exhibitors included – allowing them to buy inexpensive short “bricks” of .22 caliber long rifle ammunition. 22 rimfire ammo, the most popular recreational shooting caliber, has been in short supply for years. So short, in fact, it flies from the shelves of most sporting goods stores as fast as it is stocked, and usually for high prices. Few major sources in the...