I just picked up a 1:7 twist upper mostly to shoot the 70 gr TSX but then I found these bullets that are a lot cheaper
and supposedly sledgehammers.
Also have a 1:9 twist savage and from what I have read they will stabilize in a 1:9 twist.
COL from other sites was 2.2
Quickload lists the bullet as .808" long. Have some on the way to verify.
FYI
Load from a couple of other sites.
24.5 gr H4895 in an AR and 25 gr in a bolt action.
Reloadersnest
25 gr H4895 2997 FPS with a 24" bbl bolt action.
26 gr Varget 3024 24" bbl.
Some loads from loaddata....
22" bbl
70 Speer Spitz SP Winchester W-748 27.0 3068
Remarks: max charge; primer: CCI 450 Magnum
Hodgdon data
All 24" bbls
70 Speer SP IMR IMR-4320 24.3 2799
Remarks: COL: 2.140"; 52,900 psi
70 Speer SP IMR IMR-4064 23.5 2831
Remarks: compressed load; COL: 2.140"; 53,300 psi
70 Speer SP Hodgdon Varget 26.0 3024
Remarks: COL: 2.140"; 48,400 cup
70 Speer SP Hodgdon BL-C(2) 26.5 2954
Remarks: COL: 2.140"; 50,800 cup
70 Speer SP IMR IMR-4895 24.5 2917
Remarks: compressed load; COL: 2.140"; 52,300 psi
70 Speer SP Hodgdon H-335 23.5 2867
Remarks: COL: 2.140"; 47,900 cup
70 Speer SP Hodgdon H-4895 25.0 2997
Remarks: COL: 2.140"; 50,500 cup
70 Speer SP IMR IMR-3031 21.2 2729
Remarks: COL: 2.140"; 50,900 psi
70 Speer SP Hodgdon Benchmark 22.8 2869
Remarks: COL: 2.140"; 51,000 cup
70 Speer SP Hodgdon H-322 23.0 2962
Remarks: COL: 2.140"; 51,200 cup
70 Speer SP IMR IMR-8208 XBR 21.8 2797