| buckstix |
| (.400 member) |
| 22/06/19 04:53 PM |
|
Re: Martini 577-450 Sporting Rifle - Help with proof marks
|
Quote:
Amazing, buckstix. Have you measured the groove diameter?
I think I recall mine being .462", groove to groove.
Hello Daryl_S,
Thanks for the reply.
Yes, my groove diameter measures .462 inches. But the bore dia on my rifle measured over a gauge plug is .448 diameter. When loading a standard .458 jacketed bullet, there is still .005 deep bullet engagement. Accuracy in my rifle is great.