#1 & #2: the H4895 loads already discussed in the previous post. They showed some potential so I wanted to see if it was repeatable.
#3: H4895, with the powder charge upped slightly hoping to tune out vertical stringing. Well, something weird happened -- shots #1-4 formed a decent group, and shots #5-10 formed a tight group, but it was a separate group! Something shifted. I suspect the shift had something to do with the rifle or the rest (I adjusted the sand in the front sandbag about the time the shift occurred), not the load, but who knows for sure?
#4: the first 9 shots were in a respectable 1.4", then the 10th shot was a flier low and right. Frustrating.
#5: 130 gr. bevel base coated with Hi-Tek (photo further down in this post). J.R. brand reclaimed shot that had been quenched after the final cure at 365F -- I did not measure the BHN but based on past experience it might be 18 BHN. Quickload says about 51,000 psi for this load!
#6 - #8: same as #5 but air-cooled. I did not measure the BHN but past experience suggests 12 - 14 BHN. I was expecting the 51,000 psi to destroy these soft bullets, but to my surprise they shot better than the quenched bullets! The velocity variation was better, too.
On #7, one cartridge was such a tight fit that I had to pound the bolt closed with my fist (I dared not extract it for fear that it would spill powder). Its velocity was abnormal at 2843 fps and the POI was out of the group, so I did not count it. In hindsight the bullet probably missed a sizing step.

Here is the 130 gr. bevel base. Sorry for the lousy photo.

Here is a poor quality borecam photo near the muzzle after shooting the uncoated GC's at 2904 fps. There is a little grey wash in the corner of the grooves but nothing serious. This is the worst spot in the barrel, the rest of the barrel was cleaner than this.
