A good product, but there are some issues - Burris Airgun / Rimfire Signature 1 inch Rifle Scope Mount Rings for .22 grooved receivers

I purchased a set of Burris Signature Mount Rings (and a set of the related offset inserts) in order to mount a scope on a multi-pump air rifle. The grooves on the receiver of my rifle are misaligned slightly with the barrel and I found that the POI was more than 4 inches off (both elevation and windage) from the POA at 15 yards when I used a non-adjustable single piece mount. This variance was far more than I wanted to address by adjusting my scope, so I decided to replace the single piece mount with the Burris Signature Rings and insert kit.

I was able to achieve my goal with the Burris Signature Rings and inserts and brought the POI to within less than an inch of the POA by careful selection and positioning of the inserts. I was then able to accomplish a final zero with minimal scope adjustment. This is exactly what the Signature Rings are intended to do.

These rings are a good product, but they are not without issues. First, the instructions are really bare bones in nature and need to be much more comprehensive. If nothing else, the mathematical equations necessary to determine appropriate insert selection should be provided. Also, it is inexcusable not to provide torquing specifications; I contacted Burris Customer Service and was advised to torque both the base screws and the ring screws to 20 inch-pounds. If you purchase a set of these rings, I strongly suggest that you check out the reviews on Youtube before attempting to install them because you will find that these reviews are very helpful in terms of filling in the gaps left by the inadequate instructions. Second, these rings come in Medium and High versions. This is somewhat misleading. The "Medium" version is really quite low and the "High" version is, in fact, high. What Burris should offer is a real "Medium" height set midway between the two. Third, these rings are very sturdy and well made (and they definitely stay put if torqued properly), but they are fashioned from steel and they are noticeably heavy. Finally, installing these rings is not quite as simple as you might expect. A significant amount of manipulation and general "fiddling" is required in order to achieve the proper scope alignment, especially if you use the inserts for purposes of making windage adjustments. Plan on spending a good hour or two when you initially install these rings and then plan on at least an hour every time you readjust the inserts.

Bottom Line: Great product, but also a good example of the aphorism that "There is no such thing as a free lunch."