Was gifted some reloading gear. Have put together a mid/long range 300 win mag from a bergara hmr. Looking to start reloading. But reloading supplies are hard to come buy. Was able to pick up some cci 250 primers, and some h 4831sc powder running 180 grain nosler partition. Will be reloading from once shot factory brass, have some Hornady and some federal. Bought the online manual from hodgdon found load data for the bullet and powder but no info on primers. Anyone used a similar set up or have any advice? Other than definitely start low on the scale and slowly scale up. Thanks in advance