I don't read this forum all that frequently, so this may already be known to many of you:
Rimfire Research & Development (www.rrdvegas.com/).
Rimfire Research & Development (www.rrdvegas.com/).
The purpose of this website is to offer the most detailed, reliable, and technically sound information pertaining to rimfire ammunition and associated products. Chances are that more information is contained here for a particular product or ammunition type than on the manufacturer’s own website.
Among these pages are detailed reviews of rimfire ammunition which cover various aspects such as; accuracy, quality, terminal performance, field notes, and overall value. The ammunition is tested both out in the field and in a climate-controlled testing facility to develop solid and complete data.
Some of the compiled data is based on tens of thousands of rounds tested, with countless hours spent reviewing targets, bore scope images, and additional time in the machine shop. This is a daily activity, and chances are if I'm not documenting my results on the computer, I'm out on the range or in the field.
In addition to the ammunition reviews, there are articles about testing equipment, special projects, rifle reviews, and various research topics...