Stop a T-rex with a 10mm?

Rode

CGN Regular
Rating - 100%
373   0   0
I would like to build 10mm auto ammunition for stopping the baddest and meanest animals that walk the earth, of course within reason... LOL

What bullets are recommended for deep penetration, weight retention, and all the good stuff that makes it good for hunting and will handle the velocity of a 10mm.

I have been told that most of the 40 caliber bullets perform for the 40 but not the 10mm (when it comes to hunting bullets)

I'm not interested in the high prices that Barnes has either as I will be using these bullets for everyday shooting at the range.
 
I think that you have been mislead somewhere, the 10 mm is a fairly small case that is loaded to very high pressures, I doubt that it could be loaded any hotter. Heavier bullets will only increase pressure and reduce case capacity further. Take a look at the 10 mm case next to a .41 magnum some time and it will be quickly apparent where it stands in relation to some of the more powerful rounds like the .357 mag., the .41 mag., .44 special, .44 mag., .45 Colt's......Like the .357 Mag., it would be very marginal as a big game caliber.
 
The 10mm is a great auto round properly loaded (most factory loads are weak) but I think Ben hit the nail on the head. Magnum hunting load it is not.

However, there is a 10mm MAG round.

The 10mm MAG is darn near a 41MAG, not bad at all for a Auto Cartridge.

It's a revolver only round as there are no pistols that run it (that I know of). Only heard of the S&W 610 running the 10mm MAG when modified.

http://www.sixguns.com/tests/tt10mag.htm

I'm hoping CGN'er "B" shows up here, I think 10mm is his poision of choice and he's got a lot of info to share.

However, if you're looking to hunt T-Rex, might I suggest the 500S&W Magnum in a 700gr loading. If you're gonna go big, go BIG :50cal:
 
buffalo bore and doulble tap make some really hot stuff but its in the states and i have not seen any here i think they use 200 gr hard cast projectile for there hunting load look up double tapp and check it out
 
LOL... I know, I know... it was just a title. I have a 460 S&W that I reload for and know what all the calibers are capable of. I'm not at all delusional about the power that a 10mm has.

I'm just looking for info on what 40 caliber bullet will penetrate deep in a hunting situation and that's it.
 
I think that you have been mislead somewhere, the 10 mm is a fairly small case that is loaded to very high pressures, I doubt that it could be loaded any hotter. Heavier bullets will only increase pressure and reduce case capacity further. Take a look at the 10 mm case next to a .41 magnum some time and it will be quickly apparent where it stands in relation to some of the more powerful rounds like the .357 mag., the .41 mag., .44 special, .44 mag., .45 Colt's......Like the .357 Mag., it would be very marginal as a big game caliber.

.357 mag, .44 special and .45 colt are all significantly weaker than 10mm.
10mm can be safely loaded to mild .41 magnum energy levels.
Of the rounds you listed, only .44mag offers noticeably better performance.
.38 special has a huge case but similar energy to hot .22lr loads..

Properly loaded 10mm is capable of taking any game in North America, period.
With a std capacity magazine, Glock 20 is one of the most powerful factory handguns in existence, in terms of combined energy of all the rounds in the mag. Many Americans use it for bear defense in Alaska. If you do your part, the 10mm is perfectly adequate for large game animals.
Even with handicapped Canadian mags, i'd much rather pack a Glock 20 with 11 rounds of properly loaded 10mm than a 44 mag with 5 rounds if i had a wilderness ATC

As for original question, your best choice would be 200gr Hornady XTP's with IMR 800x powder. These can be launched at 1250fps from a factory Glock barrel, about 50-75fps faster from a 6" aftermarket barrel. These bullets were specifically designed for 10mm for hunting large game (unlike most other .40 bullets that are intended for .40 Short and Weak). AA7, Longshot and Blue Dot powders also work well, but 800x is usually the powder of choice for nuclear loads.
 
Last edited:
The 10mm cannot come close to the .45 Colt's with it's 250gr.-325gr. bullets at up to 1400fps. as loaded in the Ruger, even Keith's .44 special load of 245 gr Swc at 1200fps trumps this. All these are much lower pressure then the 10 mm.
 
The 10mm cannot come close to the .45 Colt's with it's 250gr.-325gr. bullets at up to 1400fps. as loaded in the Ruger, even Keith's .44 special load of 245 gr Swc at 1200fps trumps this. All these are much lower pressure then the 10 mm.

My loading manuals show a max load for .45 Colt @ ~980fps with a 250 gr bullet. How are you getting 1400 fps with a 325gr bullet?!?

I dont know who "Keith" is, but max listed velocities for 245gr bullet in .44spl are similar and are in 900-950fps range.

Where are you getting your numbers from?

I dont have any experience loading either, and i assume those are some kind of +P+ loads that MIGHT be safe in SOME modern revolvers. Even then, they cant touch the Glock 20 in terms of total combined power of all the rounds in the magazine. Lighter gun, less recoil, and more accurate follow up shots. 10mm has successfully taken the largest game in North America. Is it the BEST choice for grizzly hunting? Certainly not, but its perfectly adequate if the shooter does his job.
 
X2
10mm is a tough act to follow with a revolver. Yes the big magnums have more power. But even I could unload 3 full mags of 10mm with "moderate" accuracy in a fraction of the time to put the same amount of fire through a revolver. It does have that advantage.
 
buffalo bore and doulble tap make some really hot stuff but its in the states and i have not seen any here i think they use 200 gr hard cast projectile for there hunting load look up double tapp and check it out


Just looked at the ammo from buffalo boar and double tap. They use hard cast and go up to 230 gr for the 10mm. I bet those would dig deep. It would be nice to find there bullet suppliers.


zz denis

I was thinking about the XTP's as I shoot them in other guns. I just don't know if the hollow point would keep them from really penetrating deep?
 
My loading manuals show a max load for .45 Colt @ ~980fps with a 250 gr bullet. How are you getting 1400 fps with a 325gr bullet?!?

Actually 1400+ with a 250gr and over 1250 with a 325gr.

Ben's not blowing smoke, head on over to http: //data.hodgdon.com/ and do some reading.

10mm doesn't do that.

Yes it's Ruger, T/C and Freedom Arms only loads but to be honest that's nothing exotic.
 
My loading manuals show a max load for .45 Colt @ ~980fps with a 250 gr bullet. How are you getting 1400 fps with a 325gr bullet?!?

Lets compare apples to apples here. You are either comparing listed factory loads or the hottest handloads one can safely make, which is it. You are comparing hot loaded 10mm to factory .45 colt, which is intentionally loaded light for older weaker cowboy guns.

I dont know who "Keith" is, but max listed velocities for 245gr bullet in .44spl are similar and are in 900-950fps range.

If you don't know who Elmer Keith is you really shouldn't be having this conversation. And those listed loads are nowhere near what a handloaded cartridge can do. Trust me, I have loaded some real stout .44 special, and Magnum and the hottest 10mm round comes nowhere close. .45 colt offers even more case capacity and larger bullets, and assuming you have a gun to handle the load the sky is the limit.

Where are you getting your numbers from?

You may or may not understand that the reloading world is not encompassed in a reloading manual written by lawyers scared of getting sued if some idiot tries to put a hot .45 colt load in an antique cowboy gun. Published data is not the be all and end all of reloading. Someone had to write that book in the first place. In the case of the .44 special, and magnum that soemone was Elmer Keith.

I dont have any experience loading either, and i assume those are some kind of +P+ loads that MIGHT be safe in SOME modern revolvers.

This is obvious.

Even then, they cant touch the Glock 20 in terms of total combined power of all the rounds in the magazine.

How many rounds are you gonna get off at a charging bear, or trying to shoot a game animal with a handgun? This is Canada afterall, and I will take a reliable tuff as nails revolver in .44 mag, or .45 colt any day over a Glock 20, and I am a huge Glock fan. Guess what? The CFO won'y even issue an ATC for carrying a semi auto anymore. Guess why?

Lighter gun, less recoil, and more accurate follow up shots.

In a bear attack situation, or even a hunting situation you may only get one or two shots! I will take the biggest round I can get thank you.

10mm has successfully taken the largest game in North America. Is it the BEST choice for grizzly hunting? Certainly not, but its perfectly adequate if the shooter does his job.

Well you got something right. It is adequate, but certainly far from ideal. Guess what would be ideal for most large game hunting in N.A.? Probably a .44 mag, or even hand loaded .45 colt, but baybe a .454 Casull. All much better choices than a 10mm.

And just so you know the gentleman who you were arguing with before I came along is one of the most educated people on this site when it comes to reloading, as far as I have seen.

There is not too many people here who will question what this man says when it comes to reloading.

I love Glock's to, but you are fighting a losing battle here my friend. I would take this as a lesson, and be happy you learned something.
 
And just so you know the gentleman who you were arguing with before I came along is one of the most educated people on this site when it comes to reloading, as far as I have seen.

There is not too many people here who will question what this man says when it comes to reloading.

I love Glock's to, but you are fighting a losing battle here my friend. I would take this as a lesson, and be happy you learned something.

Well said mlehtovaara, and Rode if you want to try really hard cast bullets check out the Bullet Barn.
 
Thanks John,

I will check that out right now.

I looked back at 'Double Tap' and they do sell just the bullets, but good luck getting them into Canada right.

Thanks for the help so far...
 
.357 mag, .44 special and .45 colt are all significantly weaker than 10mm.
10mm can be safely loaded to mild .41 magnum energy levels.
Of the rounds you listed, only .44mag offers noticeably better performance.
.38 special has a huge case but similar energy to hot .22lr loads..

Properly loaded 10mm is capable of taking any game in North America, period.
With a std capacity magazine, Glock 20 is one of the most powerful factory handguns in existence, in terms of combined energy of all the rounds in the mag. Many Americans use it for bear defense in Alaska. If you do your part, the 10mm is perfectly adequate for large game animals.
Even with handicapped Canadian mags, i'd much rather pack a Glock 20 with 11 rounds of properly loaded 10mm than a 44 mag with 5 rounds if i had a wilderness ATC

As for original question, your best choice would be 200gr Hornady XTP's with IMR 800x powder. These can be launched at 1250fps from a factory Glock barrel, about 50-75fps faster from a 6" aftermarket barrel. These bullets were specifically designed for 10mm for hunting large game (unlike most other .40 bullets that are intended for .40 Short and Weak). AA7, Longshot and Blue Dot powders also work well, but 800x is usually the powder of choice for nuclear loads.

Maybe you should really read "Sixguns" authored by Elmer Keith and ensure you read the whole book.
Comparing these two above cartridges that you mentioned, using the Marshall Index: 22 LR Stinger 34% stopper, 38 Special FBI load 78% stopper.
These two are hardly even close.

Overall, your revolver knowledge is a little on the light side friend.
 
Last edited:
might be wrong but I'm pretty sure nothern rangers and greenlands coastal forces are issued glock 20's over the typical 9mm due to polar bears. I totally could be talking out of my rectum here.
 
Back
Top Bottom