Not the answer or help you asked but I love HSM 150g SPBT. I bought it on clearance here, $11.99 per box and is very consistent and plenty accurate enough for me, out to 350 yards. I shot a 1.5moa 10 shot group with it, OK not GMM but what I like is the consistency, I have yet to have a fly away compared to 3 per box of 20 rounds like all other training ammo.
If I had the coin and they shipped to Alaska, I would not hesitate on this deal.
Tried a box of 50 a while back. Very consistant over the chrono and quite accurate as well. Don't know what the powder was, but it was a warm load, and was a little temp unstable. 77 gr sierra I believe.