Care and feeding of my new 637


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Weisbrot
December 8, 2010, 07:32 PM
My first revolver ever. I've wanted a S&W snub ever since I was a little kid, and
the 637 fits the bill nicely. Great price with the rebate as well.

I picked up some Hornady +P at Wally World, and looked for some range ammo
to start getting used to this little beast. Just before buying some white-box
Winchester ball when I saw the price on some UMC semi-jacketed HP, +P rated.

Is there any problem shooting this- lead issues or other? I wanted to work out
with the new 637 using +P but not sure this is the best choice.

Any thoughts?

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Creature
December 8, 2010, 07:44 PM
Try Buffalo Bore 158gr standard pressure LSWCHP as a carry load...VERY stout shooting ammo.

167
December 8, 2010, 08:30 PM
The Rem UMC 125gr +p SJHP is pretty stout. For training purposes it will wear you out pretty fast. I have shot Rem UMC 158gr LRN, Speer 135gr +p SBGD, Hornady 110gr +p FTX, Win 130gr +p PDX1, and Win 125gr +p SJHP through a 637 and the Rem UMC 125gr +p SJHP was the hardest shooting of those.

Has a cool fireball effect though:)

For your first range trip I would just stick with basic FMJ or LRN for training. After you get a handle on it then you can step up to hotter loads.

ArchAngelCD
December 9, 2010, 03:00 AM
A short barrel revolver like the M637 is difficult to shoot well in the beginning. The shorter sight picture, light weight of the gun and the heavy trigger all make it harder to shoot accurately. (most pocket guns have very heavy triggers)

I suggest you shoot standard pressure .38 Special ammo to begin with and when you become comfortable with your J frame and get good at trigger control then you can move up to the +P ammo. ALSO, for a lot of really cheap practice buy a set of snap caps and practice at home. The added benefit is a smoother trigger after many hundreds of trigger pulls. ;)

motorcycle-charlie
December 9, 2010, 08:53 AM
congratulations on your new 637. i have a 442 and usually practice with the Winchester 130gr white box and use Speer Gold Dot 135gr +p Short Barrel as my carry round. this combo works well for me bc they both shoot very similar to each other and go where i point them. the Gold Dots have a little bit more recoil but not much. remember to practice with what you carry occasionally. good luck to you.

snooperman
December 9, 2010, 09:45 AM
One can not beat the simplicity and reliability of the snubby revolver. That said, you could use lead wad cutters also for practice , which will be a little cheaper and carry the Federal Nyclad if you are recoil shy or go with the Speer Gold Dot +P ammo. Welcome to the revolver world and have fun with your new gun.

SlamFire1
December 9, 2010, 11:26 AM
My M637 is sighted in for 125 grain bullets. S&W confirmed that they regulate new production revolvers to this bullet weight.

The best self defense ammo is +P. I would only shoot the stuff to confirm zero and then shoot the cheapest stuff for rock busting. I reload my own.

I have reloading data I developed in the thing. Used Bullseye and Green Dot. Both worked well.

S&W M637-2 2" barrel

158 LRN 3.5 grs Bullseye WSP Mixed cases
6-Apr-07 T = 48 F
Ave Vel =679
Std Dev =16.48
ES 56.11
High 698.2
Low 642
N = 18

Good group but POI off at 25 yards.

125 Lead BBRNFP 4.0 grs Bullseye Lot BE 532 Mixed cases CCI 500
6-Apr-07 T = 48 F
Ave Vel = 763.9
Std Dev = 22
ES 78
High 806.5
Low 728.5
N = 15
Point aim OK

125 Lead BBRNFP 4.0 grs Bullseye Mixed cases WSP
9-Apr-06 T = 59 F
Ave Vel = 760.4
Std Dev = 27.33
ES = 82.1
High = 798.9
Low = 716.8
N = 19


125 Lead BBRNFP 4.5 grs Bullseye Mixed cases WSP
9-Apr-06 T = 64 F
Ave Vel = 827.9
Std Dev = 23.21
ES = 92.27
High = 879.4
Low = 787.1
N = 20


125 Lead BBRNFP 4.5 grs Green Dot Lot 178 Mixed cases CCI 500
6-Apr-07 T = 48 F

Ave Vel = 813.2
Std Dev = 44.55
ES 176.5
High 903.3
Low 726.8
N = 24
v. accurate at 7 yards, POI at 25 yards, little leading

125 Lead BBRNFP 5.0 grs Green Dot Lot 178 Mixed cases CCI 500
6-Apr-07 T = 48 F

Ave Vel = 867.3
Std Dev = 57.54
ES 178.1
High 966
Low 787.8
N = 21
v.accurate at 7 yds, 1-2" above POI at 25 yards, more leading

125 JHP (W/W) 4.5 grs Green Dot Lot 178 Mixed cases CCI 500
6-Apr-07 T = 48 F

Ave Vel = 760.4
Std Dev = 68
ES 56
High 205.1
Low 885.4
N = 13


125 JHP (W/W) 5.0 grs Green Dot Lot 178 Mixed cases CCI 500
6-Apr-07 T = 48 F

Ave Vel = 808.9
Std Dev = 56.82
ES 95.46
High 914.2
Low 712.8
N = 20
25 yds accuracy OK, accurate POI @ 7 yds

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