rfurman24 is correct. The 7-LRM is a great cartridge, and ADG brass available. I've never had issues with brass availability (more expensive though than for the RM). Definitely a step above the RM in performance and efficiency. 195 EOL's pushing 3,000' if you give it the gas. Throttled back 180's at 3,000' will give good barrel life... New things take time to work out the weak spots. The LRM is/was no different. Love mine. Shoots nice and is very manageable for extended shooting. You would be happy with it if you don't mind paying more for brass. I have yet to find out the brass life on the ADG. Maybe someone on here can share actual experience with that. Skip Davidson?Gunwerks has Gunwerks(ADG) brass now. I have not used any but I would almost assure you the poor brass issue is a thing of the past for this great cartridge.