If you are starting out then keep it simple. Batch your cases according to head stamp, choose a large rifle primer and slow ish powder for the cartridge as this will often give more gradual development of pressure signs than a faster powder (Re 22 and Viht 160 will both be OK but the Re22 should give higher velocities). Size your cases (lube first - I like imperial size wax) and reprime. Clean the lube off the cases.
Bullet wise there isn’t a bad bullet out there to be honest but you won’t go wrong with Sierra Gamekings until you get used to the process. They will be accurate fairly cheap and effective. Equally nothing wrong with Nosler, Speer, Hornady, Barnes, Fox etc.
It is best in my opinion to use a set method for load development and the ways I would suggest are either the optimal charge weight or the Satterlee method (needs a good chronograph). Let me know if you need links to these.
Measure out your incremental charge weights from minimum to maximum, seat the bullets to book length (3.320 inch based on Nosler load data) don’t worry about distance to lands yet- go and shoot them.
At each increment look at the cases when ejected and look for pressure signs such as flattened primers, scrape marks on the case head that shows the case head has started deforming into the bolt face or loose primers. If you get any of these signs, stop and go no further. Using a chronograph is really a great idea as velocity relates to pressure so if you are getting velocities over 3100fps with a 130g bullet you are probably at or near max pressure.
hope this helps
