|
|
Post by magnumwheelman on Dec 6, 2016 7:02:33 GMT -5
seems the idea now, is to jam as many cartridges into a magazine as space will allow... no worries if it compresses the spring to literally flat... not talking your regular capacities, specifically the ultra high capacity magazines... ( for example... something like the PMR 30... which seems like you're pushing the bottom cartridge into the base of the magazine to force the top cartridge between the lips ) I know that "springs" are not supposed to be weakened by compression, but when forced flat ( from over compression ) if they fatigue??? would seem if leaving these uber capacity mags loaded for long periods of time, holding back one or two cartridges may keep things working smoother, longer... your thoughts owner of a PMR -28  |
|
cmillard
.375 Atomic
MOLON LABE
Posts: 1,951
|
Post by cmillard on Dec 6, 2016 8:14:37 GMT -5
I remember reading about a study done on at-15 magazines where the old thought was to load 28 rounds in a 30 round magazine to help with springs wearing out, and that leaving a magazine fully loaded was hard on the spring. IIRC, the study showed that the process of repeated loading and unloading--firing sequence--is what was wore the springs out. IIRC, the study left fully loaded magazines as is for several years with no ill effect.
|
|
|
|
Post by magnumwheelman on Dec 6, 2016 9:08:34 GMT -5
I'm familiar with that thought, & I don't remember ( I don't currently have an AR ) feeling like I was forcing the bottom cartridge into the magazine floor plate, back when I did have an AR, to force the top round in the lips... my PMR-30 feels that tight, as does my 15 round 10 mm... those "extra tight" magazines are the ones I'm wondering about, if they might be flattening the spring to the point of early fatigue???
|
|
|
|
Post by contender on Dec 6, 2016 9:41:43 GMT -5
In USPSA competition,,, many folks have magazines that make inserting "just one more round" into them is hard. I do not know of any of them that leave them that way,,, and most also replace springs at regular intervals.
Does it make a difference? Not sure. But I don't leave any of my 15+ mags loaded fully ever. If I'm going to carry one of those,, (which I don't do often,) I top it off before I head out.
|
|
|
|
Post by bulasteve on Dec 6, 2016 11:58:09 GMT -5
I missed going to Viet Nam by just a few years and was warned by many to download to 28 rds.. Here, have a nice AK, and while never having a problem yet..I'll go with the advice. How much is enough ? If nastyness on the horizon, top off then.
|
|
|
|
Post by bulasteve on Dec 6, 2016 12:03:20 GMT -5
MWM, ya know we're gonna have to meet someday. You're on my short list. Consider yourself warned..
|
|
|
|
Post by magnumwheelman on Dec 6, 2016 14:06:02 GMT -5
|
|
|
|
Post by magnumwheelman on Dec 6, 2016 14:09:30 GMT -5
honestly if you're ever in southern MN... let me know... we'll do some shooting on my range  I rarely get too far from my area... I do make a trip to my brothers in KS once a year, & try to get to my sister's in TX every couple years ( got to meet LSCG last time I was down there ) |
|
|
|
Post by BigBore44 on Dec 6, 2016 18:52:42 GMT -5
MWM, ya know we're gonna have to meet someday. You're on my short list. Consider yourself warned.. I'm in, ROAD TRIP!!! MS, will never be the same after we're there/gone  HAHAHAAA!!!!!!!!! BigBore44 |
|
cmillard
.375 Atomic
MOLON LABE
Posts: 1,951
|
Post by cmillard on Dec 6, 2016 22:51:50 GMT -5
where at in Southern MN? I'm a neighbor to your south here in Iowa
|
|
|
|
Post by magnumwheelman on Dec 6, 2016 22:55:38 GMT -5
I'm just outside of Albert Lea... where I-90 and I-35 cross
|
|
|
|
Post by magnumwheelman on Dec 6, 2016 22:58:05 GMT -5
44 you're welcome any time
|
|
cmillard
.375 Atomic
MOLON LABE
Posts: 1,951
|
Post by cmillard on Dec 6, 2016 23:01:01 GMT -5
I know that area, that is the way we drive when we head out to rapid city.
|
|
|
|
Post by magnumwheelman on Dec 6, 2016 23:01:51 GMT -5
C MILLARD thought I noticed you were from IA... how far are you from Brownell's range??? I did an apple seed shoot there a couple years ago
|
|
|
|
Post by magnumwheelman on Dec 6, 2016 23:03:33 GMT -5
If you're coming through, pm me... and we can meet for a coffee or tea |
|
