7x57 mouser
#11
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ORIGINAL: rbellinger59
i was told its the same as a 7mm but 7mm shells won;t work. the only thing on the rifle says mouser, tried alot of shells and the 7x57 mouser shell was the only one that works but doesn't shoot accuate, it flip flops and the pattern is like a foot away from each other at 20 feet . somethings wrong, any suggestions
i was told its the same as a 7mm but 7mm shells won;t work. the only thing on the rifle says mouser, tried alot of shells and the 7x57 mouser shell was the only one that works but doesn't shoot accuate, it flip flops and the pattern is like a foot away from each other at 20 feet . somethings wrong, any suggestions
Ask a knowledgable friend, or the local gunsmith, to help you determine the correct ammunition!
#12
Typical Buck
Join Date: Mar 2007
Location: Wide open Nevada
Posts: 515
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I have heard that the early 7.92 x57 was in fact .318 bore . If this is an early "small ring" or 93 mauser or "clone" with a tight chamber the modern JS 8x57 that is .323 may not chamber as the neck would be at or beyond max.tolarance for a .318 bore .
Side by side with a 30 cal (of 308dia) the bore ought to be obviously larger or smaller .
If your mouser is a correct take from the gun you could have some odd 1 off wildcat or a "siamese" mauser with an
odd bore (7.5 or 7.7) which will not chamber 8x57 but would 7x57 .
It could also be that you have a bbl intended for very heavy or light bullets. I have a 1-12 308 that won't shoot 180's
and an 1-8.5 30-06 that won't shoot 130's . The 06' was a special order freak even in 1965 .
Side by side with a 30 cal (of 308dia) the bore ought to be obviously larger or smaller .
If your mouser is a correct take from the gun you could have some odd 1 off wildcat or a "siamese" mauser with an
odd bore (7.5 or 7.7) which will not chamber 8x57 but would 7x57 .
It could also be that you have a bbl intended for very heavy or light bullets. I have a 1-12 308 that won't shoot 180's
and an 1-8.5 30-06 that won't shoot 130's . The 06' was a special order freak even in 1965 .
#13
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ORIGINAL: harter66
I have heard that the early 7.92 x57 was in fact .318 bore .
I have heard that the early 7.92 x57 was in fact .318 bore .
In other words, the very first rifles made to shoot the 7,8X57J round had bores of .322"-.323" to start with, and fired .318" bullets! I assume the original, heavy, round-nose .318" bullets depended on swaging up on firing to obturate the larger groove-diameter bores.
I have a 1-12 308 that won't shoot 180's
#14
Nontypical Buck
Join Date: Jan 2004
Location: Baileysville, WV
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elde I read that about the Arisaka as well. It was an article about them being the strongest action ever I think. Imagine what kind of pressure they were getting with that combo..lol.
#15
Nontypical Buck
Join Date: Nov 2008
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One thing you need to determine is whether it's the 7x57 or the 7x57R.They look almost identical but if I remember right the R stands for rimmed.That is to say the casing is rimmed near the bottom.