Frontier cartridge question

[Gringoloco]

I bought a couple boxes a year or so ago because I’m 99 percent sure the 123 FMJ Hornady bullets that midsouth sells are the same in these. The Frontier shot ok in my AR, I think it was around 1 1/2 MOA. I tried a ladder with the 123 FMJ bullets and W748 and the accuracy was garbage. I’ll have to work another powder with it at some point to see if I can get better results.