So I did some testing with 3 bullets in a 25-06 yesterday. Trying to get set up for my 25-284 build. Chose and eliminate bullets since I probably have 10 different bullets to test so would like to narrow that down to 4-5 besides the 131 Blackjack. I tested the Speer 120 SBT since the published BC is .483. My thought was that it's inflated. I have some Sierra 117 SBTs also that look identical to the Speer 120s. Then along with those two, I tested the Hornady 110ELDX. Wish I had pics but I do not simply because I was not testing groups other than at 300 yards but rather I tested for Speers BC claim. They claim .483 so that and the 20.00 per 100 pricing it just can't be beat if true. I've shot deer with that design and it performs well. My testing showed the 117 Sierra and 120 Speer had an almost identical drop at 600 yards. I couldn't go further due to the range condition I shot at. The ELDX had less drop but not by enough at 600 to make alot of difference maybe 1 moa. That conclusion too me shows the Sierra .410 number is accurate for the Speer as well. Also shows the 110 ELDX BC is definitely higher than the Speer with almost one MOA lower elevation for the same impact on the target. I was hoping for a true published BC for the Speer 120 but in reality didn't believe it was.