FWIW - the 95 SMKs are only about .020" longer (bullet OAL) on average as compared to a recent lot of Berger 90 VLDs...much of that is likely the pointed meplat on the 95 SMK. Sierra appears to have increased the weight largely by lengthening the bearing surface, which is almost .060" longer than the 90 VLD, rather than by lengthening the nose, which is ~0.045" shorter than that of the 90 VLD.
According to the Berger Twist Rate Calculator; at 65 degrees and 500 ft elevation, a 7-twist will be giving up ~2% of the intrinsic BC. A 6.8 twist is the minimal twist predicted to obtain the full BC, so not all that different from the 90 VLD. Bottom line...you're going to need LOTS more freebore to seat the 95 SMK optimally than with the 90 VLD. My guess is that a freebore length in the range of 0.250" to 0.275" would be just about right, dependent, of course, on where they prefer to be seated (i.e. into the lands, touching, or jumped). A rifle throated for 90 VLDs with the 0.169" fb 223 Rem ISSF reamer is going to have a LOT of bearing surface and boattail sunk down in the case below the neck/shoulder junction with the 95 SMKs.
Even with optimal freebore and seating depth, it is going to be difficult to hit the same nodes with a 30" barrel as the 2820-2850 fps nodes many people are getting with 90 VLDs and either Varget or H4895. Predicted pressures are at least 1-3K psi higher than my 90 VLD loads with H4895 (~2850 fps, 30" barrel), which already show extremely poor brass life, maybe 3-4 firings. For anyone considering this bullet for F-TR, you might want to be thinking about a 32" pipe with at least a 6.8-twist to go with the extremely long >/= 0.250" freebore for optimal performance.
