copy an paste from an Aussie forum, im involved with .
thought I would post here too see what you might know?
there was 2 photos, a rim n primer with no markings, an a line up of a 7.62x51, 35 aussie and 303 mkvii.
Posted 15 April 2015 - 02:24 PM
I have come across a cartridge that I can find no information about at all via google. In the course of investigating a rifle in an unknown chambering that came into my local LGS I was given a cartridge on loan that was believed to fit the rifle, which it did. The rifle is a SMLE No 1 Mk 3 that had the barrel shortened at the chamber and rechambered.
It is based on a 7.62 X 51 (.308) case that has the shoulder set back and is shortened as well as having the neck expanded to .35 calibre. The shortening may have occurred naturally as part of the reforming process.
I was lucky enough to run into the bloke who gave the the cartridge to the person who loaned it to me and he told me they were made by Myra Sports Store in Broken Hill. I have been google-ing it and can find only references to other Myra proprietory cartridges.
The sample I have has a MF L2A2 70 headstamp and appears to have the military primer. Dont know if the case is berdan primed or not but may be. The bullet is a round nose soft point.
Dimensions of the round (inches) are ;
2.405 overall length
1.970 case length
0.472 rim
0.469 head diam in front of rim
0.448 at the shoulder
0.386 base of neck
0.381 case neck at mouth
0.354 Projectile at case neck
1.453 to 1.462 base to shoulder (headspace) difficult to measure accurately
Cheers
WL
thought I would post here too see what you might know?
there was 2 photos, a rim n primer with no markings, an a line up of a 7.62x51, 35 aussie and 303 mkvii.
Posted 15 April 2015 - 02:24 PM
I have come across a cartridge that I can find no information about at all via google. In the course of investigating a rifle in an unknown chambering that came into my local LGS I was given a cartridge on loan that was believed to fit the rifle, which it did. The rifle is a SMLE No 1 Mk 3 that had the barrel shortened at the chamber and rechambered.
It is based on a 7.62 X 51 (.308) case that has the shoulder set back and is shortened as well as having the neck expanded to .35 calibre. The shortening may have occurred naturally as part of the reforming process.
I was lucky enough to run into the bloke who gave the the cartridge to the person who loaned it to me and he told me they were made by Myra Sports Store in Broken Hill. I have been google-ing it and can find only references to other Myra proprietory cartridges.
The sample I have has a MF L2A2 70 headstamp and appears to have the military primer. Dont know if the case is berdan primed or not but may be. The bullet is a round nose soft point.
Dimensions of the round (inches) are ;
2.405 overall length
1.970 case length
0.472 rim
0.469 head diam in front of rim
0.448 at the shoulder
0.386 base of neck
0.381 case neck at mouth
0.354 Projectile at case neck
1.453 to 1.462 base to shoulder (headspace) difficult to measure accurately
Cheers
WL
