Update.
First outing with Mountain Rifles Inc., custom lightweight 30-378, 26" barrel -- The rifle weighs 7 Lbs 11 oz with 4.5 - 14x Zeiss in Talley rings and bases.
Weatherby cases and Fed 215 Primers.
Only shot one round of each load -- 60 Deg F and chrono halfway to 25 yd target.
180gr...