Early 640's

[mtelkhntr]

I have an early 640 that came with the slim rosewood grips (like the ladysmith at the time) and chambered for 38 spec. and inside the frame it's marked "Tested for +P+".

My daughter has expressed in interest in a small revolver/pistol and I thought I'd pass this one on and replace it with a new one. I know that within a couple of years they started to chamber them in 357 and that seems to be all I can find which isn't a problem.

But, any idea if there were a lot of 640's sold prior to the 357 chambering?

 

[palmetto99]

1989 to 1996 all were .38 spl. That's not a very long production run.

 

[photoman]

The "+P+" guns are a bit of a collectors item as S&W didn't make many of them. They dropped the "+P+" after the first year or so and then made quite a few 640's in .38 Special. I had one and, like a doof, sold it. Have been looking for a good one since.

 

[tango-papa]

I have an early 640 that came with the slim rosewood grips (like the ladysmith at the time) and chambered for 38 spec. and inside the frame it's marked "Tested for +P+".

My daughter has expressed in interest in a small revolver/pistol and I thought I'd pass this one on and replace it with a new one. I know that within a couple of years they started to chamber them in 357 and that seems to be all I can find which isn't a problem.

But, any idea if there were a lot of 640's sold prior to the 357 chambering?

FYI...
A quick search (S&W 640) on GB shows four (4) .38 caliber Model 640's listed.

Another search (Smith Wesson 640) on GB shows one(1) .38 caliber Model 640 listed.

I have done business with one of the sellers under the (S&W 640) search.

Feel free to send a PM if you'd like further info.

Ther's also one listed in the sale ads here.

Regards,
tp

 

[Broadside]

As Photoman44 indicated, the "Tested for +P+" ones are considered a bit of a collector's item and bring premium over the others.

That said, a run-of-the-mill M640 in .38spl isn't too hard to find. You should be able to find one on Gunbroker.com for between $350 to $450 if you watch the auctions for about a month.

This is just my opinion, but it appears to me that the price on these has decreased over the past several months. I think it is just due to the fact that it is summer and people are looking for lighter guns to carry with lighter clothing.

My point being that if you are looking for a good deal on one, your best bet would be to look now instead of waiting until say the fall.

 

[Pisgah]

Well, a bit of pleasant news! Mine is "Tested for +P+" marked, and I had no idea it was a collector's item -- just a danged nice carry gun!

 

[Timbo22]

The 640 is one of my favorite J frames. I bought my 640 no dash new in January 1991 and it also sported smooth service style grips. Mine was not marked for +P+ ammo. I called S&W about it at the time, and if memory serves, they said that they quit that marking because there were no standard upper pressure limit on +P+ loads. It became a moot point because the 640-1 was chambered for 357 Magnum. They are neat little guns.

 

[lebomm]

Does this mean that WE can consider a 640 no-dash as safe for +P? I got a terrific deal on one and have been carrying it nearly a year.

Larry

 

[mtelkhntr]

It's just semantics but the word "Tested" as in Tested for +P+ intriques me. I've been tested for a lot stuff I didn't have (Thank goodness) so in the realm of S&W does "Tested", mean "Approved"? Man, if I'd have been approved for some of the stuff I've been tested for, life would have been a whole lot different!

 

[Gulf Coast Snapperhead]

I love my 640 38 special. I bought it after my wife got spooked one night and got my model 19 out of the safe, cocked it, then was too scared to lower the hammer. (I was out of town.) I put some CT laser grips on it and now it is her "bump in the night gun". I don't have to worry about her walking around the house with a cocked gun.(She knows better, she just got really spooked and was not thinking.)




later

 

[jeffrey]

Just curious, do all of the 640s marked +P+ (under the cylinder) have a serial number beginning with CEN, for centennial? Mine does.

Great gun; my EDC.

 

[ldp4570]

Just curious, do all of the 640s marked +P+ (under the cylinder) have a serial number beginning with CEN, for centennial? Mine does.

Great gun; my EDC.

No, both of mine have the CEN prefix an are not marked +P+.

 

[Broadside]

Does this mean that WE can consider a 640 no-dash as safe for +P? I got a terrific deal on one and have been carrying it nearly a year.

Larry

This is a topic of much discussion on the forum.

If you find an instruction manual from the mid to late 90's, you will find a chart that indicates that the no dash 640 is rated for limited +P use.

The no dash 640 was produced at the same time as the 60-7. So it is reasonable to assume that both received the same heat treatment process.

Forum member Saxon Pig has written an excellent article on the use of +P ammo in S&W .38spl chambered guns.

 

[mtelkhntr]

Just curious, do all of the 640s marked +P+ (under the cylinder) have a serial number beginning with CEN, for centennial? Mine does.

Great gun; my EDC.

Mine has the CEN pre-fix and is marked "Tested for +P+" but it is an early 4 digit S/n CEN11XX

 

[linde]

3" Model 640 in 38 special also available

Not sure how many or how long they were made, but there was also a 3" heavy barrel version of the 640 in .38 Special. I have one of each and prefer the 3" for a nightstand use and the 2" for concealed carry

This 3" has a 1991 serial number (BFZ prefix)

This 2" is a 1994 serial number (BRH prefix)

Here they both are in their working clothes.

Good luck in your search . . . the 640 is a fine gun.

Russ

 

[AKsRule]

IMHO , the idea that in recent years ( 1980's to date ) S&W would Heat treat steel J frames differently depending on model variation strikes me
as extremely ODD.

This would require keeping track of what was what for no economic gain.

I personally choose to treat ALL S&W steel j frame .38s as capable of
handling factory +P ammo in moderation.

 

[tekarra]

I have a 640 no dash with smooth grips as well. When I get home I will have to see if it is stamped +P+. Great revolver and mine is a keeper.

 

[AKAOV1MAN]

I have it on good authority that the "tested for +P+" was an error on the part of someone who really did not know what they were doing (saying?). All the S&W engineers knew what +P+ meant-which was really nothing as there was NO +P+ standard to test for. I suspect that the original intent was to mark them for "+P". not for "+P+".
Everyone should know that using +P+ ammo is at their own risk. The only .38 Special round I am aware of that was marketed by a major manufacturer as +P+ was the so called "Treasury load" a 110gr HP .38 Special loaded really hot for use by Treasury Agents (read Secret Service) in 2" barrel guns(back when real cops carried real guns). This was also the time frame when S&W tried an aluminum cylinder for the Secret Secret and it did not work out (wonder if they tried a +P+ load?).
Some folks say that the old 60s-70s era Super Vel round was way past +P pressures (making it +P+), they also used a lightweight bullet going very fast from shorter barrels.
I still have some of them and some day I am going to run them for speed(out of a very stout gun).

 

[photoman]

Since we're guessing... I'll put my two cents worth in...

The "Tested for +P+" guns came out when many different agencies (fed and state) were using the "+P+" loads as something better than the old standby LHP+P that supposedly didn't work well in the FBI Miami shootout. The agencies were told to use the "+P+" loads in .357 magnum guns. Seeing that Smith & Wesson didn't have a .357 magnum J frame, they came up with the "Tested for +P+" Centennial for the ammo.

That's my story and I'm stickin' to sit.

p.s. I've shot a ton of the Federal 147gr +P+ in my .38 Special K frames with no ill effects whatsoever. My opinion is, they are not that hot of a load but VERY accurate.

 

[white cloud]

this is a very interesting thread for a variety of reasons. i was under the impression that lee jurras stated super vels did not exceed industry standards for the .38. it would be very interesting to see how a super vel, 158gr +p LHP and .357 125 grain golden saber do out of a 2" or 2 1/8" snubbie. in my very limited penetration testing the 158gr +p LHP from one of the big three did not impress me.