pub const DEFAULT_TWIST_SG_TARGET: f64 = 2.0;Expand description
Gyroscopic-stability target used to synthesize a default twist when the shooter does not supply one (MBA-1135).
Chosen = 2.0 (see default_twist_inches docs for the reference-bullet comparison that
motivated 2.0 over 1.5). A synthesized default should slightly over-stabilize rather than
under-stabilize, and 2.0 reproduces the real factory twists of the twist-sensitive high-BC
match bullets (.308/175 gr -> ~1:11“, 6.5mm/140 gr -> ~1:8“) most faithfully.