I am going to be reloading some 300 SAUM this weekend for my brother. I will be loading some 165 Accubonds for him and wondered what powder you guys have had the best luck with. I have some R-19 R-22 and IMR 4350 on hand and my books say I can use them all. Just wondered which one you have had the best luck with.

I have only used Reloader 17 with the 165 TSX. It has been very fast and accurate. 3150 in a 22 inch barrel.

IMR4350 works good! 2nd choice would be Magpro!

I loaded up some IMR 4350 and Damn his gun likes 62 grains with the 165 Accubonds. Subtracting the bullet diameter it shot a three shot group of .336 at 100 yards. I was very pleased with the results.

With results like that don't change a thing. My load is about the same using 165s and 62.5 of H 4350.