does anyone know the OLN capability of the hs precision ap209-4 (300 win) or the ap209-5 (300 ultra)??? I have been trying to reach hs but there email has been down for three days and Im working while there phone line is open. I shoot a 7mm STW with a 3.677 OLN and I don't know if I can use the 300 win mag, OR if ill be able to use the 300 ultra without modification to retain the rounds???????