| rigbymauser |
| (.400 member) |
| 31/01/09 06:49 PM |
|
Re: 8 & 10 Bore Barrels where from - May be 20MM ?
|
Hey Sarg.
My 10 bore is .793cal which is 20.14mm. The 8bore is .875cal.
An 8bore roundball weigh approx 56 grams or 864 grains.
A twist of 1:50 in these calibers are more than enough to shoot heavy bullets