Is 10mm worth getting into?

[mrauditor]

Its pretty fun to dual wield the 460 and 500.
View attachment 2822417

You are a better man than me, Charlie Brown. Thanks.

 

[spencer60]

Ok, I am sold. Just bought it on their website and will go pick it up as my schedule allows. Sounds like a fun gun, and 15+1 of 10mm out of a polymer gun sounds like some serious firepower for dangerous critters in the woods, or the 2 legged type that seems to be all too common these days.

The Sig V-Crown and that other brand I mentioned, seemed to offer fairly stout loads... and I am sure that companies like Buffalo Bore put out some rounds with serious wallup.

I also saw MAC firing .40 out of his 10mm? He didn't swap the barrel or anything, just tossed a mag of .40S+W into his Smith 5906 10mm and mag dumped it and it functioned fine. Is that really recommended? haha

It will usually work, depending on the gun... and the ammo... most of the time.

You do end up with the same problem as shooting 38s out of a 357 though, you are going to crud up your chamber rim and could have problems going back to the longer 10mm after shooting a bunch of 40.

At the $18/box you mentioned I would just shoot the cheap 10mm stuff and call it good.

 

[NewLeaf]

I love the idea of carrying a carbine or rifle and hand gun in the same round and mags (or not.... love me some 45LC and 30-30 BFR haha) . So many guns so little money 30 carbine and AMT would be delightful as well.

 

[Horsehat]

FBI dumped 10mm for 9mm, But is all
About what you can do with what you got.

They dumped it because women couldn’t shoot the 10mm.

 

[aragorn1]

They dumped it because women couldn’t shoot the 10mm.

True, but the FBI went to the .40 S&W first and now have returned to the 9mm due to advancements in bullet technology.

 

[Horsehat]

To bring this discussion back down to planet Earth, you are not going to get "better than .357 ballistics" with a 10MM when shooting max loads.

The problem that you run into is that as the bullets get heavier and longer, they have to be set back further into the case of a semi-automatic round while the revolved bullet can be set out further, allowing a heavier charge. When you get into the realm of 180 gr. bullets, the .357 comes out ahead, and will have more penetration if that is your goal.

You can run a .357 at 1500-1700 fps, and no 10MM load will safely to this,

Please share the load data from any published credible source that will give 1500-1700 FPS with a 180 grain .357 projectile in a .357 magnum pistol round.

 

[summer44]

Please share the load data from any published credible source that will give 1500-1700 FPS with a 180 grain .357 projectile in a .357 magnum pistol round.

There's is some truth to what 1950 said, a 158 grain 357 and 180 grain 10mm have the same energy at 50 yards. Now if you compare the same bullet weight as close as you can get like 155 10 vs 158 357 the 10mm is the winner

 

[Horsehat]

True, but the FBI went to the .40 S&W first and now have returned to the 9mm due to advancements in bullet technology.

And for the applications found in their realm I would agree that both the decision to switch to the .40 and then the decision to switch to the 9 were sound. For a hunting load over penetration is not generally a problem, it can be when addressing human targets in a crowded environment. Additionally, the 10mm with rounds loaded to close to its potential is more difficult for most shooters to control in scenarios where multiple targets are engaged rapidly. But we’re I to face a problem of the Ursus type, a Glock 20 with a stack of Underwood ammo extreme penetrators would be on my wish list and will put down a whitetail in a hurry as well.

 

[Horsehat]

There's is some truth to what 1950 said, a 158 grain 357 and 180 grain 10mm have the same energy at 50 yards. Now if you compare the same bullet weight as close as you can get like 155 10 vs 158 357 the 10mm is the winner

I would just be very interested as to how I can safely get a 180 grain bullet moving 1500-1700 FPS out of a 6” .357. He must clearly know something I don’t.

 

[summer44]

Speer reloading manual 14. 357 mag , maximum velocity,170gr 1166fps, 158gr 1265fps, 135gr, 1387, these are our of a 6" barrel
10mm, 180gr 1295fps, 165gr 1344fps, 155gr 1320fps. Is there enough difference here to make a difference you have to decide for yourself