Ammunition & Hand Loading > General Ammunition Discussion

Question on Setback

<< < (2/3) > >>

bkoenig:
I remember reading an article somewhere (American Rifleman maybe?) where they experimented with pressures and bullet setback.  They used a press to set back bullets in measureable increments, and they found no significant increase in pressure.  I think this was in 9mm.

unfy:
I'll skip any bro science and just say what I do:

I happen to carry a pistol in .40 as well.

I cycle the rounds in my magazine when I do end up deholstering and unloading the weapon.  Just to help avoid similar 'setback' concerns.  I *rarely* deholster / unload the weapon, so it's not that much of a concern.

I DO shoot a magazine of SD ammo once a year though.  This way I cycle the stock of SD ammo I have and get a nice reminder of how the weapon will perform while shooting it.

JTH:

--- Quote from: unfy on February 21, 2014, 07:46:25 PM ---I DO shoot a magazine of SD ammo once a year though.  This way I cycle the stock of SD ammo I have and get a nice reminder of how the weapon will perform while shooting it.
--- End quote ---

Yep.

I shoot a 9mm, and setback of course can occur with any caliber.  (Whether or not it will be an issue is a different discussion.)  I tend to also practice with my carry gun, and as SD rounds are expensive the SD ammo does get cycled in and out of the gun pretty frequently. 

Mostly---I don't really worry about it.  If I feel I have cycled a round a number of times in 6 months or so, I take a close look at it.  (Haven't seen any issues yet ever.)

About once a year I shoot through my ready magazine of SD ammo, to remind myself that it feeds reliably in my carry gun, and to make certain that my gun still remembers how to shoot it.  Then I reload the magazine and gun with new SD ammo, and move on.

I don't know how much differently I'd act with a .40----but probably not too much. 

(That got me curious, so I just measured the chambered round which has been cycled in and out quite a few times---and its OAL matches the stated factory OAL for the round.  Maybe my Glock 17 is just nice when it chambers?  :)  )

barmandr:
I cycle my rounds also.  As an additional measure, I ride the slide forward when chambering the first round of carry ammo after cleaning.  Other than cleaning/range visits, I keep it loaded/chambered.  Zero setback when you ride it forward.

David Hineline:
Can alway buy a second gun exactly the same configuration and never have to unload the defensive pistol.

Navigation

[0] Message Index

[#] Next page

[*] Previous page