I have some Barnes Match Burners in140 gn. And some Nosler Partitions in 140 grain. For powder I have reloader26 and H4831sc. How do you get a recipe for this for my 6.5x284 Norma
Look at Nosler and Barnes load data online.
If you get no joy doing that with those powders, you can email either the bullet company and ask or the powder company and ask for data.
I bet you will find something online before needing to do that though.