From about a month our gunshops start to sell Hornady international in 9.3X62 with 286 gr InterLock® SP-RP bullet.
i like InterLock® SP-RP bullet in my rifle so buy box of factory ammo and put them otrough magneto speed.
This is data what I get&

Gun: CZ 550 medium lux 9.3X62, 60 sm barrel.
Temp.: 13 ℃ degree celsius
wind: 2.5m/s
light rain

av. Vo = 2231 fps/680 m/s
chronoed with magneto speed.
On box is written Vo= 2368 fps/722 m/s.
Factory ammo COL was 3.133``
I just wonder about this 137fps/42 m/s diference?