the official "next M305 shipment arrival" thread

i was meaning the fact that 5.56 rifles can fire .223, but not the other way around. Is this not a factor in the 305?
 
nemesys said:
i was meaning the fact that 5.56 rifles can fire .223, but not the other way around. Is this not a factor in the 305?
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If you're shooting something like American Eagle or Remington UMC .308 Winchester, it's not so bad and it should be fine in your M305 because it's spitzer point 150gr bullets loaded fairly close to 7.62 NATO levels, but you get problems when you start using ammo with different weights and lengths of bullets or different powder loadings because the M305 is a semi-auto rifle so it needs ammo within a certain spec give or take a little in order to function properly.
 
I may be wrong but I think the issue with .223/5.56 is that the throat on the 5.56 is a little bigger in diameter and a little longer than the .223

With the .308/7.62, the headspace is a little more generous on the 7.62 but both the .308 and the 7.62 are formed to the same dimentions. As long as you aren't rattling your gas system and operating rod with 180g. bullets, you can use both types of ammunition in your M305.

Enjoy!
 
Ripstop said:
As a side note, do you think Marstar would offer the Winchester ammunition as an excellent choice for the M305 and still have their guarantee if it was not appropriate to shoot it?
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Good point and point taken!
 
INCURSORI said:
Hey Peter, what is the official word on shipping dates? I'm getting antsy to get my hands on those M305's :)

Marco P.
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I put my order in today and the word was in hand 1st or second week of june...probably
 
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