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luke4440
01-15-2010, 20:02
I am trying to gain information from individuals, instructors, etc, on improved shooting skills from individuals going from a .40 to a 9mm. I have heard of it, the mental thing of going to a caliber that doesnt have such a snappy recoil and smaller framed peope shooting better but I would love to see any numbers or articles if ya'll know of any. Any help would be greatly appreciated.

Jeepnik
01-15-2010, 21:53
There are three words that will allow you to master "any" caliber.

PRACTICE, PRACTICE, PRACTICE.

Unless you have some sort of physical limitation, the caliber shouldn't matter one darned bit.

bambikilr
01-15-2010, 22:59
agreed, i'm 5'10" & weigh 140 soaking wet..lol shoot the .40 fine as well as my .357 mag with no problems, just have to shoot it, alot...g/f started with .22lr (she's 34 & never shot a gun, 5'2" 105 soaking wet) she acutally likes my .357 mag better than my glock 23...go figure

luke4440
01-16-2010, 01:47
I do fairly well at the ranges so I understand the practice and dry fire suggestions. And trust me, they are stressed quite often. However, people can be lazy and cheap in this day and age so the thought of people having a smaller round hit versus a bigger round miss has come up. I am kind of doing a study and I remember reading articles of individuals who didn't shoot the .40 well and then were handed a 9mm and shot it more proficiently. It may be a waste of time looking for this info but at least I will be able to tell others that decisions were made for a reason.

bambikilr
01-17-2010, 20:00
not a waste of time at all, shoot both & decide, i can shoot lighter calibers a tad better,(faster), but not at all worried about not hitting what i need to with any caliber i have, even quick follow ups...

fredj338
01-17-2010, 22:04
It's easy enouigh to test youreslf. Get guns in identical platforms & shoot a timed multi shot drill. FIrst shot hit accuracy/time is identical for any caliber form 22lr to 10mm & 45+P, it's multiple followup shots where it shows up. Guns must be identical or the timed results will be skewed. I shoot a steel frmaed 1911 as well or better than a G17. As stated, practice will overcome most recoil issues & size of the shooter really ahs nothing to do with it.

Glolt20-91
01-18-2010, 00:12
It's easy enouigh to test youreslf. Get guns in identical platforms & shoot a timed multi shot drill. FIrst shot hit accuracy/time is identical for any caliber form 22lr to 10mm & 45+P, it's multiple followup shots where it shows up. Guns must be identical or the timed results will be skewed. I shoot a steel frmaed 1911 as well or better than a G17. As stated, practice will overcome most recoil issues & size of the shooter really ahs nothing to do with it.

That's a good plus for the 1911. For those who know the correct way to grip a 1911 and practice, the 1911 is a top tier defensive/combat platform. Do you load for the .38 Super?

For those who choose to carry 9mm +P, 5 rounds, high center chest, in under a second should be a minimal goal, IMHO. :supergrin:

Bob :cowboy:

coal
01-18-2010, 03:49
I am trying to gain information from individuals, instructors, etc, on improved shooting skills from individuals going from a .40 to a 9mm. I have heard of it, the mental thing of going to a caliber that doesnt have such a snappy recoil and smaller framed peope shooting better but I would love to see any numbers or articles if ya'll know of any. Any help would be greatly appreciated.

Having owned the G27 and G23 twice, and now owning the G19 and G26, having fired both calibers quite a bit (>6k G23/27 and >10k G19/26), recoil and follow-up shot control is easily superior in the 9mm. Easily... especially weak-hand only, strong-hand only and strings. It's not "mental". From an unrealistic, solid, slow-fire, two-hand "range line" stance (or using weak .40sw ammo vs. hot 9mm*), maybe not so much. I don't shoot that way though. I won't own another .40sw.

"Skill" will be based on the shooter. "Felt" recoil will relate to shooter perception (i.e. subjective), as well as gun design. Actual recoil will not relate to shooter or gun design. Relative velocity will be key in any comparison. Recoil energy (http://en.wikipedia.org/wiki/Recoil) comparative examples:
Weight, at velocity fps, = ft/lb recoil energy
124gr at 1050 fps = 7.2
124gr at 1100 fps = 7.8
147gr at 950 fps = 8.1
124gr at 1150 fps = 8.5
147gr at 1000 fps = 8.8
124gr at 1200 fps = 9.1
124gr at 1250 fps = 9.8
180gr at 900 fps = 10.1
180gr at 950 fps = 11.7
165gr at 1050 fps = 12.3
180gr at 1000 fps = 12.8
165gr at 1100 fps = 13.3
165gr at 1150 fps = 14.4

*Example:
Compare a "hot" 124gr +p 9mm at 1250fps vs. a very "weak" 180gr .40sw at 900fps and recoil difference will be slight. Otherwise, it won't.

Notes & Assumptions for comparative examples above:
Hogdon data (http://data.hodgdon.com/cartridge_load.asp)
9mm 124gr = 4.4gr powder
9mm 147gr = 4.2gr powder
.40sw 165gr = 4.5gr powder
.40sw 180gr = 5.0gr powder
charge fps = 4700
Gun weight = 1lb
Recoil Calculator (http://kwk.us/recoil.html) or Formula (http://www.loadammo.com/Topics/August01.htm)

glocksterr
01-18-2010, 04:04
For those who choose to carry 9mm +P, 5 rounds, high center chest, in under a second should be a minimal goal, IMHO. :supergrin:

Bob :cowboy:


bastard!

:supergrin:

glocksterr
01-18-2010, 04:19
"Skill" will be based on the shooter. "Felt" recoil will relate to shooter perception (i.e. subjective), as well as gun design. Actual recoil will not relate to shooter or gun design. Relative velocity will be key in any comparison.


ok, good stuff butt, im looking @ 50% more recoil energy with my choice of 9mm -.40 loads.


i estimate i shoot the .40 @ about 90% of the 9mm.


the question i had to ask myself, can i put 3+ COM @ 7 yards with ta' .40 quick enough that i feel good about it.

the answer was a resounding yes!

could i do it after only shooting a few hundred rounds though the gun when i first got it? NO!

:dunno: