Marln Lever Action Gunsmiths

[Milt]

The last time I checked, none of Marlin's available calibers generated anywhere near 60,000 psi; I guess you know something I don't. And, I guess a mechanical failure that puts your face in the asphalt at 50 miles per hour on a downhill bicycle run or one that crashes you at a bit over 125 on a motorcycle are trivial.

You're right; I must defer to your superior wisdom in this matter and immediately cease and desist all of my 'kitchen table gunsmiffen' and somehow buy back and melt down all the custom project guns I've done over the years. After all, my files and abrasive paper have made even the revolver cylinders on which I've done black-powder-bevels into veritable hand grenades...

How could I be so stupid as to actually think I could learn to do anything new for myself or have the temerity to teach others anything. I will bow out of this discussion so as not to corrupt anyone into thinking that they might not need to seek expert help for every aspect of their lives. The nanny state will love my new attitude.

[BPTactical]

The last time I checked, none of Marlin's available calibers generated anywhere near 60,000 psi; I guess you know something I don't. And, I guess a mechanical failure that puts your face in the asphalt at 50 miles per hour on a downhill bicycle run or one that crashes you at a bit over 125 on a motorcycle are trivial.

You're right; I must defer to your superior wisdom in this matter and immediately cease and desist all of my 'kitchen table gunsmiffen' and somehow buy back and melt down all the custom project guns I've done over the years. After all, my files and abrasive paper have made even the revolver cylinders on which I've done black-powder-bevels into veritable hand grenades...

How could I be so stupid as to actually think I could learn to do anything new for myself or have the temerity to teach others anything. I will bow out of this discussion so as not to corrupt anyone into thinking that they might not need to seek expert help for every aspect of their lives. The nanny state will love my new attitude.

I can guarantee I know a couple things you don't, just as you can guarantee that you know some things I don't Milt.
This board is all about sharing information.

Well let's just see- Marlin factory chamberings for the 1894 and 336 that I am aware of:
45 LC 15000 psi
357 Mag 38000 psi
44 Mag 38000+ psi
30/30 43000 psi
45/70 30000 psi
444 45000 psi
308 Marlin Express 55250 psi
338 Marlin Express 53000 psi
450 Marlin 52000 psi

Were getting close to 60000 psi there.
Now let's look at a couple of rechamberings that I have knowledge of -
454 Casull 60000+ psi
460 Smith and Wesson 62000+ psi
My error Milt-I used 60000 psi in the earlier post as an arbitrary number. But it was used to illustrate the forces that you are dealing with. It equates to about 7000 psi on the breechface, directly attempting to fly rearward into your gourd. The only thing that keeps it from doing so is the interaction of close tolerance mechanisms that unless one has an intimate knowledge of and function of to blindly advocate to "file/grind/polish" is foolish and dangerous.
I don't want to see any of our forum brothers and sisters get hurt because they decided to try the "Kitchen Table School of Gunsmiffin" on the "advice" of another member here.
I think you misconstrued my posts there Milt- we all like to tinker with our toys and if one is comfortable doing so then go for it. If your good at "Gunsmiffin on the dinner table" then that is your call.
But the ramifications of screwing up on a bicycle/motorcycle are a damn sight different than an act of ineptitude/ignorance with a firearm, hence the reference to "Discovering that ones mechanical abilities are best kept to bicycles with 60000 psi two inches from your face".
Eat crap @ 50 mph on your bicycle because you made a mechanical error and the only one you hurt is yourself.
Commit a mechanical error with a firearm and people can die, usually an innocent bystander.