semi, First, do you rest the barrel or the stock on the Lead Sled? Supporting the barrel instead of the stock on the rest can cause this problem. If not, I would try another manufacturers ammo first before going any further. Quite often, a firearm may not like a specific load. Stay with the same grain bullet and see if this tightens up your group.
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NRA - IPA IRA ISA IHA Certified instructor
NAA - Level II Coach
PGC - IBEP Bowhunter Safety Instructor
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