Haven't tried it in the Max but got great speed in the 30 SM.Rich have you tried LRT in an the max cases? Getting a pair of 6.5 max chambered next month and trying to find a powder that'll keep speed up case full and not eat throat like N570.
Thanks. My supply of retumbo is low so I also got some Ramshot LRT. so far I only heard good things about LRT.Not wanting to use up my precious supply of retumbo in load development for my new 264 wm ( I need it for my 7 mag) I picked up some LRT to test on the 156 bergers.
Not much data out there except that Nosler lists LRT for the 140's maxing out at 75 grs.
I started at 70 and went up to 75 and shot through the ProChrono and to find a max..
70 grs- 2930
71 grs- 2950
72 grs- 3037
73 grs- 3044
74 grs- 3086
75 grs- 3110
Good extraction at 75,but the tell tale shiny spot.. Definitely max or maybe a tad more than max..
Looks like a flat spot at 72/73 so that's where I will start..
All other appropriate powders are "out of stock" . LOL