Must be pretty popular Bruce - although the ones I see come with only a 17 HMR cylinder. Seems they stopped producing the model with the extra 17HM2 cylinders, so you may be chasing down a used one on the internet auction sites. Unless Buds gets a used on on trade, I doubt they will offer the 'two cylinder' version any more. The 22LR/22WMR models are still around in abundance.

Bruce, it is out of stock. I would check in the "For Sale" sections at Ruger Forums and also (6)un Broker, (6)uns America and Armslist as hard to find firearms and accessories show up for sale by private individuals and small shops. Just replace (6) with G.

Bruce, that model is out of stock on Buds' but here is the link to the listing anyway: budsgunshop.com/catalog/product_info.php/products_id/70687/ruger+single+six+hunter+17hmr+7+1%2f2%22+ss+adj+sights On the right side of that page under "out of stock" you can select "Notify Me When Available" to receive an email in the event that Buds' receives more stock of this gun. I do not work for Buds' and cannot predict when or if more will arrive, so outside of waiting I would have to suggest looking for this gun at another retailer.