Anyone who's shot the classic Ruger 10/22 is definitely a fan of the Ruger BX-15 magazine, which provides more rounds for more trigger time at the range. Now, owners of Ruger guns chambered in .17 HMR and .22 WMR can take advantage of that same extended capacity of 15 rounds, thanks to the new BX-15 Magnum Magazine. Each Ruger BX-15 Magnum Magazine uses the same feed-lip geometry that makes the company's JMX-1 rotary magazine such a success, and the stainless-steel construction of the feed lips combined with an anti-tilt follower and the glass-filled nylon magazine body ensures that this BX-15 magazine will provide reliable, durable service for years to come.