Guns Like firearms themselves, there's a wide variety of opinions on what's the best gun.

7x57 mouser

Old 11-13-2008, 10:46 AM
  #11  
Giant Nontypical
 
eldeguello's Avatar
 
Join Date: Feb 2003
Location: Texas - BUT NOW in Madison County, NY
Posts: 6,270
Default RE: 7x57 mouser

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
Contrary to the implications of the word "mouser", the Mausers are not intended for shooting mice! IF you are shooting 7X57mm rounds in yours, and accuracy is as you describe, could it be that the 7mm (.284") bullets are too small around?? If so, but the 7X57mm ammo is easy to chamber, I suspect your rifle may be an 8X57mm (7.92X57JS) that uses .323" bullets instead of being a 7X57mm.

Ask a knowledgable friend, or the local gunsmith, to help you determine the correct ammunition!
eldeguello is offline  
Old 11-14-2008, 11:50 AM
  #12  
Typical Buck
 
Join Date: Mar 2007
Location: Wide open Nevada
Posts: 515
Default RE: 7x57 mouser

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 .
harter66 is offline  
Old 11-15-2008, 11:06 AM
  #13  
Giant Nontypical
 
eldeguello's Avatar
 
Join Date: Feb 2003
Location: Texas - BUT NOW in Madison County, NY
Posts: 6,270
Default RE: 7x57 mouser

ORIGINAL: harter66

I have heard that the early 7.92 x57 was in fact .318 bore .
Actually, although there were some civilian rifles made in Germany in 8X57J (7,8X57mm) with .318" bores, the military rifles (GEW 1888's) made for that round were actually .322"-.323" in the groove diameter and when Germany adopted the 154-grain, .323"Spitzegeschoss (pointed bullet) in 1905,many M88's were converted to fire this load. The conversion consisted merely of reaming the chamber throats larger so the cartridge case could release the .323" bullets. Nothing else was done to them. (As a fact, IF the cartridge case neck expands enough to freely release the bullet, it is conceivably possible to shoot almost any size of bullet through a smaller bore. The most extreme example of this I have heard of -in the American Rifleman-was of a guy who rechambered a 6.5mm Arisaka to .30/'06, but left the bore at .264". He was shooting .30/'06 ammo thru this barrel. Bullets were being swaged down to .264" to get out the muzzle!)

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
That's strange, since the .308 Win. was introduced by Winchester in their Model 70 Featherweight with the 1/12" twist as standard. The one I owned would shoot every weight bulletfrom 110 up to 220 grains with quite good accuracy. I loaded mine with the Hornady 220-grain round nose & 48 grains of Norma N205powder for a MV of 2300 FPS. This load was quite accurate from the 1/12" twist 22" Winchester barrel.
eldeguello is offline  
Old 11-15-2008, 06:35 PM
  #14  
Nontypical Buck
 
Join Date: Jan 2004
Location: Baileysville, WV
Posts: 2,925
Default RE: 7x57 mouser

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.
Doe Dumper is offline  
Old 12-04-2008, 09:03 AM
  #15  
Nontypical Buck
 
Join Date: Nov 2008
Location: Adirondacks
Posts: 1,305
Default RE: 7x57 mouser

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.
Bernie P. is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Whitehorn
Reloading
4
12-11-2006 08:23 AM
Soilarch
Reloading
8
02-03-2006 01:03 AM
handwerk
Guns
0
10-08-2005 07:59 AM
Quilly
Guns
15
04-01-2003 06:21 PM
charlie brown
Reloading
5
02-17-2002 07:30 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Quick Reply: 7x57 mouser


Contact Us - Manage Preferences - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.