SA Staggerfeed mag OAL?

[BoilerUP]

Can anybody tell me what the max cartridge OAL is in a short action staggerfeed 308 magazine?

Thanks!

[Smokey262]

I am almost certain it is 2.8"

[Roninwolf]

Ive loaded mine with 2.890 OAL 175gr A-max in my 12fvss .308 short action. The inside of my mag box measures 2.900