View Full Version : Mauser Argentine 06

January 12, 2010, 08:05 PM
What do I have? Has it been sporterized? What's the deal? Okay on with the show. I have a Mauser 30-06 bolt action. It has an Argentina Crest, all matching serial numbers, an almost 23 inch barrel, stair/step sights that start at 200 and go to 2000. With factory 150's, off a bench at a 100yards, it groups nicely about 3 to 4 inches high. It also has a very smooth trigger that breaks about 3.5 pounds.
All comments on where this came from are welcome(I believe it came from Argentina). Thanks

January 12, 2010, 08:15 PM
Im sure not an expert on mauser but do have a working knowledge. As far as I know the Argentine model 1909 was never chambered for the 30-06. It was industry practice to rechamber original 7.65x 53 Argentines to 30-06 because it was difficult and expensive to get original ammo. It was a simple reaming job to alter these. The only drawback is the Argentine round has a bore diameter of .311"-.312" where the 30-06 is .308". This resulted in a loose bullet fit and only far accuracy. But once again Im not expert, can one who is chime in?

January 13, 2010, 11:40 AM
Many South American countries rebarreled their older bolt action rifles to 30-06 in the 1950s and 1960s because US military aid (in the form of WW2 surplus arms) caused them to change their service cartridge to 30-06. Some were simply rechambered, some were rebarreled.

F. Guffey
January 13, 2010, 02:27 PM
Someone called and said they have a problem with a 280 Remington, seems it has a ring around the neck after firing, they claimed sizing corrected the problem. seems the natural thing to do with a 7mm57 was to ream the chamber to 280 Remington, the problem most 7mm57 have larger chamber necks and when reamed to 280 some of the chamber is not removed. A fix would have been to throat the chamber and clean up the chamber with a neck chamber reamer.

30/06 Argentine, there was the 30/06 reamer, the neck diameter of the 7.65 is .017 larger in diameter, the shoulder 'from the head of the case to it's shoulder is .188 shorter than the 30/06 when measured from the head of the case to it's shoulder and the Argentine case length is .384 shorter than the 30/06 meaning most if not all of the 7.65X53 chamber is removed. If the reamer used to cut the chamber was a 7.65/06 the neck of the chamber will be the correct size and if the reamer cut the throat 7.65 (.311) bullet should/could be used.

If 30/06 reamer was used a .311 bullet could cause the neck to be too tight and the bullet would be required to sized down when it hit the throat (cone).

With measurements most are + or - a little.

In the perfect world the correct reamer would have been used and for sizing cases a 30/06 full length sizer could have been used with a 7.65 (.311) sizer ball.

F. Guffey

F. Guffey
January 13, 2010, 03:24 PM
Mausers. 7mm57 to 308, 7.65 to 30/06 etc.,





F. Guffey