I have a RCBS 7mm mag neck die and was checking to see if anyone knew if I could use it on 7mm-08? I know Hornady sells a universal 7mm neck die they list as working with most if not all 7mm calibers. RCBS lists different part numbers for 7mm mag and 7mm-08 and I wasn't sure if the RCBS dies have some internal differences making the caliber specific..........thanks.