Measured 1 100 Gr Speer .940 " Barnes 85 X old style measured .942", as I recall the Barnes shot so so in my 24" 99 EG 250 Savage that twist measured about 1 -13.5.
The 85 GR Barnes X will not shoot in my other 2 99 EG 1-14 twist.
Best guess is bullet would have to be at or under .940" length to have any hope of shooting in a 1-14 true twist rate.
