Bought R51 @ local gun show on 9/8/18.  Serial # H0066xx91R51.  $290 NIB no tax, no fees, no transfers, one hour background wait only due to gunshow traffic.  Thought I would give it to the GF for a carry arm after I test it and break it in.

300 rounds down range so far.  Yellow box UMC's and steel cased Winchesters (both 115 grain FMC) are the best so far with really no problems.  Tula steel case are NG!!  Speer 124 grain FMC are hotter and had issues while the Remington green box 147 grain and the Fiocchi 115 grain (both FMC) are just OK.

Nose dives seem to happen because of the shape/length of the bullet.  Speers and Tula are longer and tapered while the UMC and Winchester are shorter and rounder.  Next up are JHP bullets which I think I will favor Remington and Winchester.  Have some S&B 115 grain so they will go first.

All loads shoot low with a center POA.  Have a Trijicon set of sights I will install to see if the POI will move up any.  Great looking gun, nice feel and hold but just a little disappointed in the POI/POA.  The fussiness of the ammo is not a huge issue (yet) as long as we can narrow it down to a couple of loads that work well.  Mags so far don't seem to be the issue.

From NH, just got the gun at a local gunshow.
Like the fit and feel and the fact that it is all metal.
But it does shoot low even with a POA centered on the bull.
Thanks