To be completely honest I had no plans for a 4000+ FPS 300 RUM when I got the LR.
I really like that setup. How adjustable is it? Are those aluminum pieces something you can buy pre-made or did you mill and drill?I have made my own Magnetospeed pic rail mount that is very adjustable. I shoot groups with no POI shift, in fact I shot an F Open class match with it attached this Summer. I have recorded as high as 4330 fps on a 30" 223 WSSM without any problems. Here is a picture.
I shoot with the V3 attached most of the time, I want all the data I can get, in as many different environmental conditions as possible. Especially during load development. I thought about Lab Radar, but am glad I didn't buy one. There are way too many issues with it beyond the price. Magnetospeed V3 works every time! Especially well with a off barrel mount.
View attachment 295649
I used 1/2 x 3/4 6061 aluminum for the main rails and 1/4 x 3/4 for the links. As seen in the photo It will adjust from 10" to 25" long, center of pic rail clamp to MS bayonet. And vertically about 8" but can be configured in different ways to adapt to your needs. Basically it is two parallelograms used in conjunction with each other.I really like that setup. How adjustable is it? Are those aluminum pieces something you can buy pre-made or did you mill and drill?