Hello hive mind, I want to solicit your collective wisdom. I’m working towards load development for my new rifle setup, and want to dial in on the right powder.

The rifle is a Savage 111 in 30-06. It has an 18” barrel with 4 groove ratchet rifling, and will be shot suppressed. I’ve researched the load data for the bullets I’m using (Barnes 168 or 150 TTSX), and cross referenced the powders against the GRT calibration levels.

This leads me to the top three options that will work for either bullet, and also have highly calibrated GRT models. In order of calibration levels, they are:

1) H4350
2) AA2520
3) IMR 4895

My question really is, how do I pick between them? Any input would be greatly appreciated. I’m always willing to learn from those who know more and are willing to teach.


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