| 4seventy |
| (Sponsor) |
| 03/01/18 03:52 PM |
Re: 9.3 x 57 Puzzle
|
Quote:
One problem is that the chambering is not marked! It definitely is a 9.3mm bore, not a 9.5. The only thing out of the ordinary is the excessive expansion of the case neck upon firing.
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Ironically, when I obtained the rifle I assumed that it was a 9.5x56. When I actually measured the bore, I discovered that it was a 9.3.
I would suggest slugging the barrel to obtain a precise groove diameter.
A 9.3 bore diameter would indicate a 9.5 groove (and bullet) diameter.