FFI_RETICLE_FIRST_FOCAL_PLANE

ballistics_engine::ffi

Constant FFI_RETICLE_FIRST_FOCAL_PLANE 

Source 
pub const FFI_RETICLE_FIRST_FOCAL_PLANE: c_int = 0;
Expand description

focal_plane value selecting a FIRST-focal-plane reticle (subtensions constant across magnification). Any value other than FFI_RETICLE_SECOND_FOCAL_PLANE is treated as FFP.