So for the second time this week I have heard some idiot mention this "Oh yeah, 41 magnum. Nice cartridge, a lot like my 10mm auto." This usually occurs after I tell them about a 41 magnum I have acquired recently. The only conclusion I can draw from such an odd statement is that either they're trying to convince themselves that their 10mm is a lot more powerful than it really is, or they have no idea what a 41 magnum is capable of.
To start with the maximum energy produced by the 10mm according to Hodgdon's data (which is some of the craziest reloading data imaginable) the 10mm produces 662 foot pounds using a 180 grain bullet, and 9.5 grains of Longshot. The 41 can generate 1395 foot pounds using a 265 grain bullet and 20.8 grains of Win 296. That's 110.73% more energy, more than double! So... in fact your 10mm is nothing like my 41 magnum except for the bullets weigh less and are 10 thousandths smaller in diameter. Oh, unless you mean they cost about the same as my 41 mag, then you'd be right.
Now a note on the 10mm. Its a great cartridge. In my opinion it is the true king of the semi auto calibers when it is reloaded to great potential. It will run circles around all typical calibers found in semi-automatics. It just isn't even close to what a magnum cartridge is. Even Hodgdon's 357 data produces more energy than the 10mm. So to all those who own a 10mm, congrats, great gun, holds more rounds than my revovler, blah blah blah. But they aren't the same, they're not even close, and now you're educated.
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