semi auto primers

[hosshotrods24]

will cci #200 primers work in dpms .308 without slam firing or destroying my gun? also on the neck of my cases some of them are slightly bent is there a way to remove that thanks for any replies.

YES I'M A NOOB AN NEED SOME HELP

 

[Powder_Burns]

Re: semi auto primers

Resizing the brass will straighten out the necks...if you have dents in the shoulder from improper sizing the mild ones will iron out from firing, the really bad bulged cases will need to be scrapped.

CCI sells harder primers for military rifles but I think that is limited to small rifle intended for the AR-15, think they are CCI #41's...

you don't have to worry about slam-firing an AR-10, the firing pin has a retention spring on it that keeps it from moving from inertial forces. Not sure about the DPMS, but if they use the same carrier and bolt then it does.

 

[mdmp5]

Re: semi auto primers

The primers will work fine. Just make sure they aren't sitting high, that's all. Small deformities in the brass might be removed after firing.

 

[Powder_Burns]

Re: semi auto primers

If you want to mitigate the degree of neck dings you are getting, if your upper has a shell deflector try putting some electrical tape or something over it, my old man uses that 3m rubber griptape stuff, basically acts as a cushion when deflecting brass and won't beat them up as much.

 

[hosshotrods24]

Re: semi auto primers

all the brass was factory loaded before, this is my first batch of reloads, i don't have a deflector i'm gonna need a brass catcher though i just don't understand where the dings are comin from most of them aint that bad though

 

[sinister]

Re: semi auto primers

Dings on the case neck are from hitting between the teeth of the barrel extension on the way out of the gun (as they're swinging out of the ejection port).

 

[427Cobra]

Re: semi auto primers

I have used cci200, BR2, Fed 210, 210m and Winchester in a LR308 with not even a hint of a slam fire.

 

[angsniper]

Re: semi auto primers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Powder Burns</div><div class="ubbcode-body">Resizing the brass will straighten out the necks...if you have dents in the shoulder from improper sizing the mild ones will iron out from firing, the really bad bulged cases will need to be scrapped.

<span style="color: #FF0000">CCI sells harder primers for military rifles</span> but I think that is limited to small rifle intended for the AR-15, think they are CCI #41's...

you don't have to worry about slam-firing an AR-10, the firing pin has a retention spring on it that keeps it from moving from inertial forces. Not sure about the DPMS, but if they use the same carrier and bolt then it does. </div></div>

CCI 34's for 7.62

 

[hosshotrods24]

Re: semi auto primers

i appreciate the help feelin a little safer now

 

[Greg Langelius *]

Re: semi auto primers

I will say that generally, service rifle-based semi's do most of their slam firing due to mishandling. They are designed exclusively to feed every round from the magazine. This feeding process imposes intentionally designed braking forces on the bolt that prevents it from reaching velocities that can cause a floating firing pin to impact a primer with enough force to ignite it without being struck by the hammer. If you hand chamber a round and release the bolt to slam home, especially without a magazine fully seated, a slam fire becomes far more likely.

Greg

 

[SScott]

Re: semi auto primers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Greg Langelius *</div><div class="ubbcode-body">I will say that generally, service rifle-based semi's do most of their slam firing due to mishandling. They are designed exclusively to feed every round from the magazine. This feeding process imposes intentionally designed braking forces on the bolt that prevents it from reaching velocities that can cause a floating firing pin to impact a primer with enough force to ignite it without being struck by the hammer. If you hand chamber a round and release the bolt to slam home, especially without a magazine fully seated, a slam fire becomes far more likely.

Greg </div></div>

Thanks Greg,
That makes sense, I have to belive that "slam fire" is not caused by proper use of the weapon. Now I have a better idea of what kind of situations to avoid.
SScott