A like new M-7 stainless with synth stock caught my eye and ended up following me home. It is a 300 SAUM. A set of like new RCBS dies and a 100 new brass came with it. With a 22 in barrel this rifle should be sweet in thick bush or in a stand. Was thinking of working up a load with 150 or 165 gr Barnes TTSX bullets. Powder in the W760 , RL 17 and RL 19 should be good. With the 165 gr bullets should produce close to 3200 fps with the 150 and 3000 fps with the 165 gr. Curious what loads have performed well for other 300 SAUM owners. Thanks for any input.

My 300SAUM is a M700. For a factiry rifle it sure can shoot. Loves 180grain bullets. Not at home so no reference material with me.

I load my 300 SAUM with R-17 and 150 and 165 Barnes bullets. I get 3200 with the 150 and 3100 with the 165. Rifle is a M7 SS 22" barrel.

I have been doing load work with 180 partitions also and here is some of my results.
Superformance Fed 215 or WLRM Rem case
65 gr 2820 fps win primer
65 gr 2791 fps fed primer
worked to
67 gr 2924 fps Win primer.

168 gr E-tip Fed 215 R-15
53 gr. 2725
54 gr. 2775
55 gr. 2830
56 gr 2885
57 gr. 2930

H4350
60.5 2855
61.5 2900
62.5 2930
63.5 2963
64.5 3015

R-17
60 2867
61 2908
62 2952
63 3011
64 3038

Superformance
65 2788
66 2824
67 2896

It is one of my favorite rifles.

150 gr TSX Fed 215 R-17 65 gr. 3232 fps
165 gr. TSX Fed 215 R-17 64 gr. 3138 fps
Last two are max in my rifle.

Thank you for that information. That will likely save me a pile of time. 3138 fps with a 165 gr is pretty impressive. I can see why it would be one of your favorite rifles.