crimp or not

who me ? sorta ya. think of a kick from even a 308 and what might happen to the bullets in a mag. makes scene but ..... meh. curious enough to measure the rounds some day but i dout its any bit of a big deal.


you AR guys that pretend to be swat members and what not at the local range probably not a big deal either. your ammo does not get any real abuse. When ur bullets are the real deal like ammo for a tank than yes. Crimped ammo is extremely important.


When the requirement is there crimping is important. When its not I wouldn't bother.
 
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No, I was replying to slushee, who appears to have had enough of a change of heart to edit his post and delete his comments.

There is no extra recoil in a semi-auto. What there is is the potential for bullet set-back due to battering loaded ammo can endure because of the comparative violence the semi-auto action places on the bullet as it strips it from the mag and slams it into the chamber.
 
crimping

take a look at some military rounds . some are crimped and some are not . one day I was groundhog hunting and I went to eject a 223 round from my savage I used to have and the bullet came out and powder went all through the mag . pain in the tush to clean out . maybe I screwed up and left the over all length too long but I;m sure I miked them all for length . I crimp what the hell why take a chance . your loading for a semiauto right well if the bullet catches on say a burr then you could have a bullet set back then you pull the trigger and say the bullet does;nt go all the way down the barrel . then we have problems . it;s just one extra step . I have seen crimps on lot;s of military calibers . there is a reason for this !!!!! safety first . :wave:
 
for me its not a question of time really as i have a free slot on my progressive, the round would be highered in an empty die slot anyway before coming out of the press

im just asking so i have to invest 30$ or not :D It's not even my thread to boot.
so calm down folks, we aint at war.
 
My two cents...

Bench shooting with a bolt - do whatever you want. I crimp my semi-auto ammo because I don't want the bullet seating to change with all the slamming and hammering - no matter what. I have never had any issues with bullets moving ever, but I don't want to take a chance.

Second factor (for me) is that a Lee crimp die is like 25 bucks and there is a space for it on my progressive, so...why not.

Anyway, keep doing what works for you, but that is my reasoning.
 
in the end as long as ur bullets are all the same they should fly the same path. crimped or not

Particularly with some slower burning powders, crimping can give a more uniform neck tension which can help those bullets fly the same path.;)
 
My two cents...

Bench shooting with a bolt - do whatever you want. I crimp my semi-auto ammo because I don't want the bullet seating to change with all the slamming and hammering - no matter what. I have never had any issues with bullets moving ever, but I don't want to take a chance.

Second factor (for me) is that a Lee crimp die is like 25 bucks and there is a space for it on my progressive, so...why not.

Anyway, keep doing what works for you, but that is my reasoning.

My thoughts exactly!

+1 for Lee Factory Crimp

BTW I did have experience with semi-auto when seating depth was changing after chambering... I'm crimping ever since.

s>
 
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