My own N340 Data (357 mag). Does it look OK...?

[Walkalong]

I'm sending this link not to encourage high-pressure loads but to possibly give some insight into what overpressured cases look like. I think from my experience that this is pretty good info. I've been looking at punched-out primers for years. Anyway, all of this info concerns 9mm loading and should not be compared to .357.

Centella, you might take a few of your cases and check their measurements as shown in this link.

9MM Major Loads (natoreloading.com)

Be very very careful gleaning any info from that site.

 

[thump_rrr]

In my Hornady 9th edition the only place I find N340 is in the 158gr lead bullets There is a maximum load of 5.5gr at 950fps.
If I look at the Hornady 158gr HP-XTP jacketed bullets they recommend a maximum load of 13.1gr of N110 for a maximum velocity of 1200fps.
They also recommend a maximum load of 16.4gr of N120 for a maximum velocity of 1150fps.
No powder is listed for a velocity of over 1250fps for a 158gr bullet in that caliber

This is what Gordon's reloading tool shows with a Hornady 158gr jacketed bullet and 9.3gr of N340

 

[Centella]

You,d be surprised, a 44 Magnum isn’t that much more of a kick with the proper grip.
Try a 460S&W or a 45-70.
Here is a friend shooting my S&W 460V.
Unfortunately you can’t see the fireball and feel the heat in your face.
https://youtube.com/shorts/Ughhey7WH-o?feature=share
View attachment 1149435

Thanks!