| Waidmannsheil |
| (.400 member) |
| 24/11/19 06:00 PM |
Twist rate
|
Gentlemen, could anybody please tell me the original twist rate used with the 400/350 Rigby and the 350 Rigby Magnum. Thanks in advance.
Matt.
| Rule303 |
| (.416 member) |
| 25/11/19 05:14 PM |
|
Re: Twist rate
|
Matt, somewhere in my foggy memory 1 in 16 for the 350Rigby magnum comes to mind. Though I am skeptical as this calibre used 300 grain projectiles and I would think 1 in 14 would be required to stabilize this weight.
| DarylS |
| (.700 member) |
| 26/11/19 05:14 AM |
|
|
Re: Twist rate
|
1 in 14" (about minimum, I think) would make more sense than 16", yes.
| underlever |
| (.300 member) |
| 26/11/19 05:33 PM |
|
Re: Twist rate
|
I will measure my 400-350 Rigby Farquharson and report back soon. I'm interested myself as it was made to shoot the 310 gr bullet.
| DarylS |
| (.700 member) |
| 27/11/19 04:25 AM |
|
|
|
Re: Twist rate
|
Yes please.
| Waidmannsheil |
| (.400 member) |
| 27/11/19 07:06 AM |
|
Re: Twist rate
|
Thanks for the input Gentlemen. I agree, about 1:14 would be my guess as it is similar to the 9.3x62 with a similar bullet weight. Could be 1:12 like the 375 H&H but as the Rigby was earlier when they tended to use a slower twist rate I recon 1:14 is more likely.
Underlever, thanks for going to the trouble, I am looking forward to your answer. By the way, your rifle sounds like a beauty.
Matt.
| underlever |
| (.300 member) |
| 27/11/19 06:30 PM |
|
Re: Twist rate
|
With cleaning rod and tight patch I did measure. The result was 1 turn in 13 inches +/-.
Which is the easiest way of putting up a few pics? I did use photobucket but haven't worried about such things for quite a while and I'm much more comfortable with chisels than keyboards.
| Waidmannsheil |
| (.400 member) |
| 27/11/19 08:44 PM |
|
Re: Twist rate
|
Thanks for doing that for me. Well our guesses weren't that far out, sounds about right anyway.
There are several threads about posting photos in the main index.
Matt.
| Homer |
| (.416 member) |
| 29/11/19 10:55 AM |
|
Re: Twist rate
|
G'Day Fella's,
Waidmannsheil, I have just looked thru my referrence material, unfortunately without success.
I would go with that the other blokes have suggested.
Avagreatweekendeh!
Homer