soonershooter, remington does in fact load the scirroco in the 7mm mag, but i have not seen the loads for the ultra mag. the scirroco that i shot in my 7mm mag sendero didnt perform as well as the 150gr for the 300rum, but is close to satisfactory. they are a little pricey, at $26 per box for the 7mag, so i started handloading the 140gr nosler bt. great shooter with 61gr of imr4350. my next batch i will try the nosler with a little more powder, maybe 63gr and another at 64.5gr. might be good medicine for those tough 80lb whitetail does we have around here........lol