I have purchased thousands of once fired creed brass for around 20 cents per. So I could see a Creed being a very economical choice for sure in regards to brass. As for powder a charge of 40-45 depending on the powder should get you there.
I do load dev on a front mechanical rest and back bag. Once it’s sighted in and work up done I shoot from hunting positions. I have shot some of the smaller groups but rarely can replicate it. I figure it’s luck or I missed just right if you will.