So I have an LMT with a proof barrel converted by DWilson. I also have the new HK MR556 A4. I am not sure what you want to do with the rifles but having shot both I prefer the HK. Both of my rifles have 16" barrels and the HK shoots better than the LMT. By better I will explain, to me the perceived recoil of the HK is less. When I get behind the scope the HK jumps around less than the LMT but neither of them pulls me off target. I have tried multiple factory ammos on both, with every 77 grain iteration I have tried the HK shoots tighter groups than the LMT. The thing that really pushes it over the top for me is the new warranty from HK, if you shoot the barrel out they will replace it. It is a lifetime warranty.I have a OTB griffin can, Leupold 2-10x w/piggyback DPP that needs to be attached to a SPR. My question is do i go with a LMT MRP Quad setup or use the MR556 A4 as a platofrm. The HK would be a touch more expensive. The LMT would be all factory but with a Proof SS barrel converted for use.
My Geissele 14.5" upper is absolutely fantastic, I have nothing but love for them. The 6ARC GFR again is absolutely fantastic, and they have options available that are probably closer to an SPR. I don't own a Ridgeline but have seen them shot around me several times including recently at a Bruiser class and it looks like a fine rifle.
