Indeed! When things settle down a tad with my schedule, we can link up.
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I actually did the advised break in from Hawk Hill. I shot some loads from my semi and the other bolt and they all where 1/2". I did my measurements yesterday with 77TMK and think I may stay with 8208, considering side by side with H4895 also. I did pick up some H322 but may do a short line load with those and 53 Sierra's
My Tikka was 24 of 8208 at 2.285 OAL. I can get these longer on this one as the MDT mags allow 2.550. Won't go that long at Jam is at 2.365 best I can measure.
PB, went direct to MDT on the chassis, good pricing.
Looks like I found a winner with the IMR 8208 XBR. 23.6 @ 2.320 with 77 TMK and LC 12 brass, 5 shots chrono at 2751, 2747, 2743, 2750 and 2739, 2746 avg. The 23.8 was 2756, 2753, 2765 and 2785, 2764.8 avg.
I might fiddle with seating depth and might run 23.7 to split it.
http://i.imgur.com/vGAhwmH.jpg?1
http://i.imgur.com/V9N16Pt.jpg?1
Looks like you nailed it. Well done. I expect that gun will thrill you beyond your expectations. Bolt .223 is money.
PB