I shot my loads today.
23.4gr RL-7 240gr LRN 1,320fps
23.4gr RL-7 240gr SWC 1,249fps
6.6gr TrailBoss 200gr BigLube 950fps
I was not able to zero in my scope very well and forgot to bring along the bore cleaner items. After 15 shots of trailboss I just did the best I could. Started out at 25 yards and was able to adjust the scope for 1/2 groups with TrailBoss and the 200gr BigLubes. Couldn't get the 240LRN to zero in. 100yards Trailboss was not bad so I moved on up the the 240gr SCW. The SCW were able to cycle through my Marlin with no troubles. I could not tell where I hit so I shot all three without any adjustments. Later found they hit the top left corner of my 11 1/2x8 notebook paper target with a 1/2 group. Certainly worth trying again!! My 200gr JHP 2400s (did fine and I was able to hit the 200yard 14x14 gong with my last shot, shot #27 wit no bore cleaning. The problem is me not the rifle, scope or loads. I tried some 180gr JHPs with 2400 but the velocities were from 1,100 fps to 1,600 fps. I think the battery may have been dying...been in there well over a year. Lets just say I was unprepared for today!! I am happy with it and look foreword to trying it again when I have more time to zero in the scope.
To conclude I noticed that the RL-7 certainly produces less pressures than the 20grs of 2400 and the velocities were closer together than the 2400 results. I am very happy with my results with the RL-7 powder as well as the 240gr SWC.