I had a rather Heath Robinson session last night trying to determine the twist rate of my rifle. (one of the draw backs to buying a rifle from a defunct manufacturer is that there is no info available for such things).
I drew a line on a cleaning rod down the centre, then measured the distance it took to revolve fully in the barrel.
My question is - how accurate is this meathod? - as it would appear that my rate is 1 in 8 / 1 in 8.5.
Im not concerned what the twist is really, just curious - I was expecting 1 in 10.