Long Post Warning. Read at your own risk!
Greetings and congratulations on your new revolver!
Long post warning!
Please correct me anyone. I hope for and welcome correction though I may sound like I think I know what I am talking about. Thanks!
I love my Model 38!
(That statement means flat nothing as I love every smith, so...)
You may have heard all the rumors about frame cracking with the Airweight pistols, and I want to set your mind at ease. I researched the issue extensively and learned an awful lot about how and why gun people come to believe unsupported statements about guns, but that is another post for another day.
You will hear that a certain frame crack happens an awful lot with the Model 38, but I could never get any reliable data or anything more than some interesting occasional anecdotes. There is a brother on our forum here who posted in some detail about his M38 frame crack. I have similar difficulty researching un-commanded discharges with the Sig P320, and Glock 10mm pistols exploding because of an "unsupported chamber".
If something is happening often enough to be a concern, then we ought to be able to explain why from specifics of the design and operation of the tool. If we can understand correctly, we can modify training and maintenance to alleviate the concern. The science ought to explain it and it ought to be repeatable.
The questionable usual explanations:
-Over torquing the barrel? S&W did find that for some undisclosed number of guns during a certain period, the early 80's, they had some assembler(s) doing that and they stopped it. You should check your gun. It will be obvious if the front sight is not straight up and down. There is no fix for it. Just carry it and shoot it and when it cracks get another! Nobody proved that the cracked Airweights actually did have an over torqued barrel.
-It is not meant to be shot? I would love to see a statement from S&W saying that they are deliberately selling a gun with which you cannot practice. I did confirm that most of them sit in the drawer for decades without ever being shot (just like every other gun).
- Shooting hot ammo? Mas Ayoob had a Model 38, and he shot so many +p rounds through it that he sent it twice to a gunsmith to have the frame straightened! No cracks ever, but I can explain below.
-There are so many of them? The idea is that all guns fail but we don't care, or we don't pay attention until we own one of them. There are so many of these little guns out there that when one of them cracks we all sit up and pay attention. Just like buying a Subaru All Wheel Drive, now you see them everywhere. If you Google "handgun frame cracks" you will see a plethora of articles involving every make and every model gun.
Because of the very consistent appearance in the photos of these cracks, I came to the conclusion that there is a better theory.
The Theory:
Smith made the little Bodyguard Airweight with a steel barrel and cylinder on an aluminum frame. It is supposed to make it stronger but creates our problem in that the aluminum alloy handles heat expansion differently than steel does. Aluminum dissipates heat 15 times faster than steel. The barrel collar is shrinking while the barrel is still fat. The frame pops open just like the buttons on your shirt when you devour too much beer and pizza at once. I learned this from someone who spoke to a lady design engineer in the employ of S&W, or so he said, who knows. Sorry I never got her name.
The Work Around Strategies:
-Add a little scandium to the frame alloy. Works beautifully! Shoot yours until it cracks, then buy a 340PD.
-Practice with the all-steel M49 but carry the M38. Great idea, a reason to buy another gun. Maybe even the wife will accept this excuse!
-Limit to one cylinder of shooting at a time. This is what Mas does. He pulls it from his left pocket and runs it empty, 5 rounds, then drops it and pulls his sidearm with his other hand. He never experienced the crack because he never got the gun very hot shooting this way. He never deliberately limited his shooting mind you, rather he had a practice regimen which worked for him and the little gun never let him down. Your first cold run is the only one that counts anyway.
-Keep shooting it after it cracks. Oh horrors! BrianD, how could you?! One writer noticed his crack while cleaning it. He had no way to know how many rounds ago it cracked because it still shot just great. He then put another 100 rounds through it by the time he wrote his post :-o He thought the group was maybe not as tight as before. (!?) You do this at your own risk. I am not a doctor and nothing I write here is intended to be taken as medical advice. Please consult your own shooting professional before attempting, etc. etc.
-Keep carrying it after it cracks? Well OK just don't practice with it. It probably will still do the job for one more cylinder. There are no reported cracks from dry fire practice.
I will look forward to anyone's comments and corrections.
Kind Regards!
BrianD