Zastava 9.3x62 is 4+1 or 5+1?
- Thread starter vpsalin
- Start date
My 7x57 mag holds 5 categorized with 9.3x62. https://zastavaarmsusa.com/wp-conte..._2019_February_Catalog_without_index_page.pdf
Keep in mind that the 9.3X62 case is larger than the 270 Win/30-06 case both at the base and at the shoulder. This means that a stack of five 9.3X62 rounds will be taller and wider than a stack of five 270/30-06rounds. Therefore, the magazine may be less able to hold the same number of 9.3X62 rounds than it could 270/30-06 rounds.
Does that make any sense??
They all have the same bolt face dimensions.
7x57 was parent case for .30-03/.30-06. I had thought the .30-03/.30-06 was the parent case for the 9.3x62. Turns out not quite that simple.
https://www.ronspomeroutdoors.com/blog/the-surprising-93x62-rifle-cartridge
Sources vary according to ANSI/SAAMI Z299.4-2015 nominal base diameters:
7x57: 0.473"
9.3x62: 0.470"
https://saami.org/wp-content/upload...99.4-CFR-Approved-2015-12-14-Posting-Copy.pdf
7x57: 0.473"
9.3x62: 0.470"
https://saami.org/wp-content/upload...99.4-CFR-Approved-2015-12-14-Posting-Copy.pdf
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The rim is .470. The base is .476. 
Here's the chamber drawing from SAAMI.
Back to the OP subject, all but one of the many 9.3X62 rifles I have used over the past 40+ years have held five in the magazine. Never needed to use more than three rounds, even in urgent backup situations.
Ted
Here's the chamber drawing from SAAMI.
Back to the OP subject, all but one of the many 9.3X62 rifles I have used over the past 40+ years have held five in the magazine. Never needed to use more than three rounds, even in urgent backup situations.
Ted
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Are they not controlled round feed? I have an M70 in 8x57 in CRF. They should be loaded into the chamber from the magazine, otherwise the extractor has to jump over the rim in order to close the bolt. Not a good plan on any of my older CRF Mausers. Maybe someone knows better??
^ we had a thread where some very well respected gunsmiths verified that this depends on the extractor being bevelled to allow it to pass over the case rim when a round is inserted to the chamber.
I no longer have it, but despite other flaws I am fairly certain my zastava m70 9.3x62 could hold 5 rounds in the magazine and had a bevelled extractor
I no longer have it, but despite other flaws I am fairly certain my zastava m70 9.3x62 could hold 5 rounds in the magazine and had a bevelled extractor
- Location
- Western Manitoba
If you have never owned one, a standard military Mauser 98 extractor will not "run over" a rim in a chambered cartridge - but the extractor nose can be ground and beveled to do so. A Mauser 98 was designed to be fed from the magazine - load in five from a charger - into the magazine - close the bolt - you have one in chamber and four more in magazine. Have to alter things from Paul Mauser design to have one in chamber and 5 in the magazine. When you buy spare parts, you get what Paul Mauser designed - your gunsmith can alter that to allow single feed loading, but was not a "thing" on the originals.
I have tested the integral magazine with 30-06 live rounds and it works flawlessly while loading 5+1. If I use 9.3 rounds, the last round is fed into the magazine and is held in place but the feeding angle is all wrong. The bolt can't even pick it up to attempt to chamber it. The bullet is pointed too high and the bolt face is pointed too low. I'm wondering if it's because the 9.3 shoulders stick out so much more then the 30-06
I think that's exactly the reason. The 9.3 has less body taper, while the rails and magazine box were designed for 8x57 based cartridge.
BigUglyMan
CGN Ultra frequent flyer
- Location
- New Scotland
Not a Zastava, but my Husqvarna M98 holds 5 down and will jump the rim. And it's a true Mauser 98, thumb cutout, flag safety, and all.
dgradinaru
CGN frequent flyer
- Location
- British Columbia
The couple i had a few years ago in 9.3mm were 4+1.
