You will need a note book to record your loads.
At first you might Not do much measuring.The critical dimensions that define a load are:
Bullet weight and batch number
Powder type weight and batch number
PriMer manufacturer model and batch
Cartridge Overall length to tip
later measure to 7mm ogive which is more stable and defines jump to lands
Case Manufacturer and length after trimming
Later measure to sholder datum. I use a diameter of 0.4OO" for my 7mm 08. This defines the cartridge headspace and whether it will fit into the Chamber again. You Should adjust your die so it Only Sizes the case down by O-003 to 0-005" each time. Its easiest to use a full length die. If you use neck sizing then every now and then you will have to full length size or "bump" size the body.
I worked up to 43° gn of AR 2208 with 140gr Nosler ballistic tips but had tested higher loads so I know I have a bit to spare. My primer pockets are gradually getting loose so perhaps that is a bit hot really.
Ifyov don't like reading a reloading book I hear there are good videos on You Tube and one mate learnt online and shoots well now.
All the best with this!
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