Recoil Springs video review

[The_Shadow]

Found this on an other forum I frequent...

[Intercooler]

Interesting. I need to do more work with my 11lb and 12lb spring and see. It didn't change my velocity and shockingly it seemed my brass throw may have been shorter. I need a spotter or camera to see what is going on.

[Yondering]

I've noticed accuracy differences in my 1911's with different spring weights too.

Although, keep in mind the guy in the video appears to be running a 9mm, so the spring weights he's using won't be the same as what you'd need in a 10mm or 45. The general concept is good though.

[Vice]

I'm not so sure about that being a 9mm.   He said he runs Major power factor of 170.


Thanks for the video Shadow, good information. 

[sqlbullet]

I think you can just barely make major 170 with 147 gr +p+ 9mm.  The Buffalo Bore load would work out to 172, as would the Underwood load.

[Yondering]

I'm not so sure about that being a 9mm.   He said he runs Major power factor of 170.


Thanks for the video Shadow, good information. 

Plenty of guys run Major with 9mm. It's a lot easier to do in a 1911, since you can load to a much longer OAL. Look at the brass when he's shooting. Looks like 9mm to me.

[The_Shadow]

This is info for 1911 clones or simular style, I think the Glocks, S&W10xx and even the EAA Witness lines are different as far as lock up and recoil are concerned and how the recoil springs work to help maintain lock-up as compared to the 1911's.

Everything becomes relevent to a certain extent so we just have to study what works and what doesn't! 

[REDLINE]

Awesome video!  Thanks for posting it.

[MichiGun Hunter]

hadn't seen that video before today. interesting... thanks for sharing Shadow

[BEEMER!]

Interesting video.

He does say he is shooting a 40 cal several places in the film.

[nickE10mm]

Excellent video ....

I might add ... notice that while the rearward slide speed DOES seem a bit reduced with heavier springs, the VERY SMALL but crucial BARREL UNLOCKING SPEED seems **NEARLY** unaffected by the heavier spring. 

Like I've postulated before, the best way to affect ACTUAL unlock speed is with slide mass (and, in a 1911 only, the firing pin stop geometry).  The recoil spring doesn't make a big enough difference SOON ENOUGH to change the outcome of what we might call an "early unlock".  At least, that's how it *SEEMS*.