Barrel lengths and velocity delta's, Tikka T3x Super Varmint 23.7 and Rem 700 5R 20' (223 Rem)

[Pappasniper]

We often discuss how much each inch of barrel will effect velocity, obviously there is more to it than just barrel length with twist and chambers etc. But here are some loads with comparisons and resulting delta's.

I started with a handload 69 grain SMK load
Tikka 2,934 FPS
5R , 2,827 FPS
Delta 107 FPS

75 grain RMR handload
Tikka 2,802. FPS
5R 2,662 FPS
Delta 140 FPS

Lapua 69 OTM Scenar
Tikka 2,730 FPS
5R 2,567 FPS
Delta 163 FPS

Norma 223 69 grain Factory
Tikka 3,008
5R 2,941
Delta 67

Norma 223 77 grain Factory
Tikka 2,702 FPS
5R 2,614 FPS
Delat 88 FPS

Just food for thought.

PB