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mitdr774 wrote: ↑Tue Sep 23, 2025 7:39 pm
Not sure I would want to use the 123 SST at 6.5x55 velocities. The 129 SST comes apart at those velocities and it is supposed to be tougher than the 123 SST. My main complaint about the SST line is that while they shoot great, they come apart to early and easily on game. 1:9.5 twist seems a bit slow for a 6.5x55, but probably okay if sticking to 129gr or less if i had to guess.
It works for him and yes the twist rate prefers lighter bullets.
