M14 chamber vs AIA M10 chamber

abalas

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Wow, I could not even insert a spent case from M14 into AIA M10 B1 chamber half way in. Damn, those M14 chambers are big. The M10 chambers new factory rounds easily enough. I suppose I cannot reload spent M14 cases for my new AIA M10 as they expanded so much? Perhaps M14 spent cases should not reloaded as they are already stretched out of proportions? Any experience out there? I am just thinking of getting into reloading so I maybe ignoring some important factors here. Just my observations.
 
Have you tried using a FL sizing die? Size some cases. See how they look.
It is not at all unusual for cases fired in one rifle to refuse to chamber in another.
 
Spent casings from autoloading firearms are usually overstretched and require full length sizing. They might not even fit back in your M14.
 
"...suppose I cannot reload spent..." Any time you want to use the same brass in two rifles(not at all unusual), even two identical rifles, you must full length resize. Semi-autos require it every time. You'll have to work up a load for each rifle as well.
 
or pumps and lever actions-about the only time I don't full length is for my #4 Lee Enfield -as the reloads are going right back into the same firearm- neck size only
 
"...suppose I cannot reload spent..." Any time you want to use the same brass in two rifles(not at all unusual), even two identical rifles, you must full length resize. Semi-autos require it every time. You'll have to work up a load for each rifle as well.

Not really, no.

FL resizing MAY be needed, but you never know until you actually try. I have rifles that I can neck size only and use my reloads in more than one rifle of the same caliber, without problems.

Having to work up loads for each rifle is another often repeated pile of complete BS. If a factory can produce .308 ammo that works in tens of thousands of 308 rifles out there, then so can you. Having to work up loads for each rifle is only for those who are pushing their loads right to the maximum, either in terms of pressure or accuracy or whatever. If your ammo is reloaded to accepted factory specs it WILL work in multiple rifles, assuming there is nothing wrong with the rifle. That's the whole point of actually having standardized specs for each cartridge - neither the factory producers, nor the handloaders have to start from scratch with each rifle. I reload for five 308's myself, not all of which I own, and I have one recipe for all these rifles and the ammunition I reload works very well in all five rifles.
 
Not really, no.

FL resizing MAY be needed, but you never know until you actually try. I have rifles that I can neck size only and use my reloads in more than one rifle of the same caliber, without problems.

Having to work up loads for each rifle is another often repeated pile of complete BS. If a factory can produce .308 ammo that works in tens of thousands of 308 rifles out there, then so can you. Having to work up loads for each rifle is only for those who are pushing their loads right to the maximum, either in terms of pressure or accuracy or whatever. If your ammo is reloaded to accepted factory specs it WILL work in multiple rifles, assuming there is nothing wrong with the rifle. That's the whole point of actually having standardized specs for each cartridge - neither the factory producers, nor the handloaders have to start from scratch with each rifle. I reload for five 308's myself, not all of which I own, and I have one recipe for all these rifles and the ammunition I reload works very well in all five rifles.

Nobody that I know reloads to factory specs. That defeats most of the point of reloading as you tailor the load to the rifle. Factory ammo is loaded to a maximum case size, projectile seating depth and powder charge so that it will down in any rifle. If you sear your projectiles out so that they are almost touching the lands, neck size the case so that it is fire formed to the chamber and work your way up to the the max load your rifle can handle without excessive pressure signs then it's not safe to fine in another rifle. It may fit if the other rifle has larger headspacing but it's not safe until proven to be so.
 
Sheesh, I thout my M305's chamber is immensely large thus hazardously large. I measured head space and it is GO so no problem there.
 
Its common for spent cases not interchange in the same cals. Due to tool wear during production, tolorences in machines, and other variables.
 
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