I have a Murphy precision 20 MOA mount on my savage LRH 6.5-284. It seems very well made. I bet it weighs a Half a pound or more. Milled stainless steel, powder coated matte black. Very durable so far. I'd buy it again. Rings I used are leupold PRS steel rings.
Cameron Murphy has made me two bases for two different guns, a 20 MOA in Titanium, and a 30 MOA in Stainless Steel. The 30 MOA replaced a Talley 20 MOA that wasn't cut right.... more like only 6.5 MOA.
Cameron is a sharp guy, well worth contacting him.