The powder used for military loading of the .30-'06 for use in the M1 Garand was essentially IMR4895 under a different name. And it is excellent for that application and will not damage the M1's OpRod. Slow powders such as 4350 should never be used to handload .30-'06 for use in the M1 as its pressure curve is incorrect and can result in bending the M1's OpRod. While H-4895 and IMR4895 are not exactly the same, there is not much difference.