color of box, WTF - your kidding, right?
I used Speer bullets a lot. I started out using Speer and Sierra 75 grain bullets in my 6mm in the 60's - both shot around 1/4" at 100 yards.
When I shot an antelope (pronghorn)six times (100 grain Hotcor 6mm in 6 mm Remington)in the lungs before it dropped and each of the bullets exited at apparently the same diameter as the entrance I stop using Speer on game animals. Speer bullets always shot accurately, but I don't trust them on game. Now I've read testimony in this forum that the Speer 35 caliber bullets expand well on Elk, so I may try them. I'm sorry though, yellow boxes work for me as well as red. I don't like green for game animals though - and that has more to do with explosive Sierra bullets than the color green.
