Had jaco build my 300saum, and it was finished yesterday defiance tenacity action, proof 18 inch carbon, hitec carbon tactical hunter stock, hardy ultra mag supressor, triggertech special, hawkins hybrid rings with a nx8 4-32 scope. Took her to the range today to do the barrel break in, then started shooting some speed groups. Was blown away with the performance. 178gr eldx @ 2900fps safely, got a slight heavy bolt loft at 2970, but had some good low SD groups around the 2900-2930fps mark. Looking forward to doing some seating depth tests with this charge! 60.7gr rl17 did the job. Got the heavy bolt loft at 62gr
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