3 supersonic loads tested today.
SSK 16.5" barrel
SSK reflex Suppressor
110 grn V-Max
18 grn IMR 4227
Rem 7 1/2
221 FB brass
OAL 2.110"
Avg 2018 fps
Ex Sprd 35
SD 14
125 grn TNT
18 grn IMR 4227
Rem 7 1/2
221 FB brass
OAL 2.134"
Avg 1953 fps
Ex Sprd 14
SD 7
3 shots recorded had to change printer paper.
110 grn Barnes Tac-X FB SBR
17.5 grn IMR 4227
Rem 7 1/2
OAL 2.155" roll crimp in bottom groove of bullet. Not much in case.
Avg 1967 fps
Ex Sprd 74
SD 27
V-Max and TNT shot fair, the Tac-X was a pattern.
All 3 loads can be increased for velocity.
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