I got an NXS (Nightforce) scope to round out my LE2B Savage. Just sold a bunch of useless stuff on ebay and figured I'd pick up a Leupold Mk4... turns out my useless stuff wasn't as useless to others as it was to me, and I ended up with enough for a 3.5-15 x 50 NXS with NP-R2 reticle. Decent scope...
Anyway, I mounted that on my LE2B and took the Weaver Grand Slam which had been on that rifle and put it on my "green 788," now a Douglas 8 twist .243 win.
I did OCW testing early last year with Nosler 180 grain Ballistic Tips and Varget. Using the regular CCI 200 primers, I found that 44.1 to 44.2 grains was optimal with Win cases. At 315 yards, that load did this:
...seeming to strongly cross that notion that an OCW load developed at 100 yards can't perform at longer ranges. That same load did MOA at 1000 yards the first and only time I tried it. I have no image of that group, but I did test it again today (really just to get the new scope aligned at my normal 600 yard zero). It acquitted itself nicely as I believed it would. I pulled one shot of the five, so I put one more into the group to be sure I had a good representation of the load's capability. Even with the shot that was pulled the group measured around .6 MOA...
I was quite pleased with the performance of the stock rifle (okay, it's glass bedded--but that's it).
Then it was time to get the Remington 788 on paper with its (new to it) Weaver Grand Slam.
I had wanted to try the 107 grain Sierra Matchking in this rifle. I've had unsatisfactory results on game (even groundhogs!) with the Hornady 105 AMAX (even though others say that bullet works fine on game). So I wanted to try the Matchkings.
I had determined that 48.5 grains of Hodgdon Retumbo was optimal with the 105 AMAX, and that a CCI 250 mag primer definitely tightened the ES (judged not by chronograph, but by vertical spread at 1060 yards).
I swagged 48.1 grains of Retumbo should be about right with the 107 SMK's. Again I used the CCI 250 primer, and today the cases were Winchester virgin brass.
I only loaded 7 shots, and it took me five to get on the paper at 600 yards with the newly installed scope.
Here are the three shots which hit the paper, shots 5, 6, and 7.
True, it's only three shots. But I knew the load would perform. Based on what the 105 AMAX did from this rifle, I expected the SMK to do even better.
Now I've just got to see if this bullet can actually make a groundhog DRT (dead right there) at ranges beyond 500 yards--something that the AMAX seemed to have trouble doing in my experience.