Myth Busting Lube vs No-Lube and Bullet Setback

[1KPerDay]

He's talking about lubing cases vs not lubed. Bds, I dump a few hundred pistol cases in a plastic bucket and spray some one shot in and shake them around. There is some lube getting inside the case necks on at least some of them (those that are facing the spray at the time). I've never had any issues with setback but I haven't checked every round of course. Interested to hear your findings.

 

[LiveLife]

Yes I agree. More posts I read on application of lube, I am more inclined to test whether lube has affect on bullet setback.

The OP says "Has anyone done bullet setback test with lube vs no lube?". Is the poster talking about lubing the bullet or the case?

OP's intent was to test residual lube inside pistol case neck's affect on bullet setback from discussion that stemmed from another thread - https://www.thehighroad.org/index.p...ight-wall-handgun-brass.832620/#post-10760639

Since I already have data from a recent bullet setback test using two bullets and various headstamp cases (some with no bullet setback), I thought it would be neat to test lubed cases for increase in measurable bullet setback.

Bds ... you need to standardize your lube application procedure.

If I was doing this testing I would try to find a way to apply the same amount of lube to each
case each time. Perhaps you could spray the One Shot on ear swabs and then swab the
inside of the cases to a standard depth.

A controlled application may make the test more reliable

I agree.

Since we are testing residual affect of lube left inside case neck, I will standardize lube application.

Thanks.

 

[vaalpens]

bds, Interesting thread since I do use a little lube when resizing 357sig and we know it is susceptible to setback.

How are you planning to test for setback since you will probably have some variation in the bullets and cases you are using?

I have found that I could feel a difference in how easy bullets are being seated between 357sig cases where I resized them only with the 357sig sizer, vs resizing the body first with the 40s&w and then resizing the neck with the 357sig sizer. I have not tested for any difference in setback, but it is something I was thinking of doing a setback testing at some point once I can figure out to conduct the test.

 

[LiveLife]

How are you planning to test for setback since you will probably have some variation in the bullets and cases you are using?

With the same bullet setback test procedure I used for the "Neck Tension and Bullet Setback" thread - https://www.thehighroad.org/index.p...sion-and-bullet-setback.830072/#post-10710859

Three random samples of each headstamp were fed/chambered from the magazines of Glock 22/23 (9mm magazines were used) with KKM/Lone Wolf 9mm conversion barrels and measured bullet setback recorded and then averaged.

100 gr and 115 gr bullets were intentionally used due to their shorter bullet base length compared to 124 gr bullets.

Average Bullet Setback from Measurement #2 with X-Treme 100 gr plated RNFP at 1.040" OAL:

.0000" - CBC
.0000" - GECO
.0000" - S+B
.0000" - Starline
.0000" - WIN
.0003" - GFL
.0003" - PMC
.0004" - PPU
.0004" - R-P
.0004" - Tulammo
.0006" - AGUILA
.0007" - PERFECTA
.0012" - FC
.0013" - .FC.
.0016" - SPEER
.0020" - BLAZER


Average Bullet Setback from Measurement #3 with Hunting Shack Munitions 115 gr plated RN at 1.130" OAL:

.0000" - GECO
.0000" - R-P
.0000" - WIN
.00008" - CBC
.00008" - Tulammo
.0001" - PERFECTA
.0003" - GFL
.0006" - PMC
.0008" - BLAZER
.0010" - .FC.

 

[Cemetery21]

I know you said you don't lube pistol brass (I don't either). But for the purposes of the test are you lubing sized/belled brass or are you lubing then running thru the cycle?

 

[LiveLife]

Since most people lube case before sizing, I will do the same.