https://www.speer-ammo.com/downloads/spe..._Marlin_270.pdfWhich powder should I buy. This is the load data from Speer on the bullet I plan on using. My pistol is 14? with porting. I am guessing I may want a faster burning powder. Also on this data it shows case type. Does this matter all I have is hornady brass and that leaves me with only one option IMR 8208 XBR.
