I'm still testing mine, since I blew some of the taper out of the case it is hardly going to be the same loads as a standard SLR/S. 6mmar.com has published loads on their website. From the website:
6.5 Super LR
Below are some initial chrono results with the Sierra 142 gr Match King Bullets (that can be loaded magazine length to feed out of a short action magazine). Most of the 139-142 gr 6.5 mm bullets can be loaded at magazine length for magazine feeding and still remain close to the lands, but because of the long neck of the case, not have a lot of bearing surface of the bullet back in the case.
42 gr H4350, BR-2 Primer, Sierra 142 gr. MatchKing - 2801 fps, E.S. 17, S.D. 6
43 gr H4350, BR-2 Primer, Sierra 142 gr. MatchKing - 2885 fps, E.S. 11, S.D. 5 ****
42 gr RL17, BR-2 Primer, Sierra 142 gr. MatchKing - 2836 fps, E.S. 26, S.D. 10
43 gr RL17, BR-2 Primer, Sierra 142 gr. MatchKing - 2894 fps, E.S. 19, S.D. 6 ****
38 gr Varget, BR-2 Primer, Sierra 142 gr. MatchKing - 2775 fps, E.S. 17, S.D. 7
39 gr N150, BR-2 Primer, Sierra 142 gr. MatchKing - 2809 fps, E.S. 16, S.D. 6
40 gr N150, BR-2 Primer, Sierra 142 gr. MatchKing - 2869 fps, E.S. 27, S.D. 10
41 gr N150, BR-2 Primer, Sierra 142 gr. MatchKing - 2921 fps, E.S. 17, S.D. 6
**** Note: The 43 gr. loadings for H4350 and RL17 shot well and did not appear to be top end loads. In further testing, loadings using 43.5 gr of H4350 and 43.5 gr. of RL 17 were used and shot well without any excess pressure signs noted (i.e meaning the 142 gr Sierra bullets were running 2900+ fps).
Max Case and Trim Length for 6.5 Super LR Brass Cases
There is no formal established max case or trim lengths for the 6.5 Super LR brass. The author suggests the following for guidelines:
Max Case Length: 2.030"
Trim Length: 2.020"