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Is this ammo safe to shoot in 1:3 twist 8.6 Blackout barrel without jacket separation being a lead core projectile? — 1 Answer

by Jeff, from TX, United States Asked on January 31, 2026

Name Underwood Ammo 8.6mm Blackout 300 grain Brass Cased Jacketed Hollow Point Rifle Ammunition (5)
$89.00 $63.49 Save 29%
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Answered by Steve, member, from IN, United States, on February 14, 2026

I cannot answer with 100% certainty, but everything I have read in my search for reloading data indicates that at subsonic velocities, jacketed bullets are fine. In supersonic loads, opinions vary, mainly based on bullet construction.

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Last updated 2026-06-08 UTC.