Speer 10mm 200gr Gold Dot in Clear Ballistics Gel

[Storm1969]

I shoot both 40 and 10mm. When I shoot 10mm, I want full power 10mm. When I want to shoot stuff powered to 40 levels I shoot 40. I only buy factory 10mm when I need the cases....

 

[Balrog]

9mm Federal HST's will have that same penetration and expansion, but with less recoil and lower cost.

 

[joneb]

This was for 200s IIRC. It should be noted that some believe current production #9 burns faster than it did when that data was published.

I've been using Accurate #9 for about 16 years mostly for .357 Magnum, never noticed any inconsistencies. all of the #9 I used was US made. some of the #5 was from elsewhere mostly Czech. In the last 10 years the Accurate #7 I've used has been from MT USA

 

[TTv2]

Yeah, but that's the whole purpose of 10mm...big bullets driven fast. If you want to shoot 10mm bullets slowly then just get a 40 S&W They're practically giving those away on the used market now.

A 200 grain bullet in .40 would probably be running under 900 fps, these are over 1000 fps from a 10mm. While it's not loaded to max potential, it's no slouch.

But, when the bullets are the same as .40 and they can't be hot loaded to stand up to the higher velocity of 10mm, it makes me question the validity of the 10mm. I'm already discovering similar issues with .327 in revolvers and I'm wondering if going with .45 over 10mm, even tho .45 is not as powerful as 10mm, that it would be a better decision. At least with .45, I can get +P ammo that is quite powerful and has bullets that will handle the higher velocity, not to mention still have plenty of standard pressure ammo that are a plug and play with suppressor use.

 

[Zaydok Allen]

But, when the bullets are the same as .40 and they can't be hot loaded to stand up to the higher velocity of 10mm, it makes me question the validity of the 10mm.

Just curious where you got that impression. I've seen several videos of people testing Underwood's offerings with Speer GD bullets, where the velocities are up over 1250 fps and faster. Yes, you do get some jacket separation, but it never seems to come totally undone and fall apart. Granted though, gel is gel, and not a living animal.

If you ask CraigC, he will share that he has seen GD bullets come apart at 1400 fps and higher. It seems to me that one could push 180 gr GD bullets to 1300 fps out of a 5 or 6" barrel without any real problem and a bit slower with these 200 gr. That is very potent medicine in the right application. Deer, hogs, black bear, jerk asses would all find that pretty lively at the muzzle end.

I'm not saying the Gold Dot is the best bullet to choose for 10mm. Personally I think hard casts and some of the monolithics out there are much better choices, but I don't think bullet integrity invalidates the cartridge.

Did you just mean that you question the validity of 10mm when loaded with GDs?

 

[ATLDave]

I know a couple of hunters that have taken a fair number of pigs and deer with 10mm 180 grain Gold Dot bullets and report being very pleased with their performance.

Pigs and deer aren't people, but that still might teach one something.

Some .40/10 JHP bullets truly fail at 10mm velocities, and some do not. For some, they just expand even quicker and reach similar penetration depths - thus creating more "crush path volume," as well as more temporary disruption if you think that matters.

 

[TTv2]

Just curious where you got that impression. I've seen several videos of people testing Underwood's offerings with Speer GD bullets, where the velocities are up over 1250 fps and faster. Yes, you do get some jacket separation, but it never seems to come totally undone and fall apart. Granted though, gel is gel, and not a living animal.

If you ask CraigC, he will share that he has seen GD bullets come apart at 1400 fps and higher. It seems to me that one could push 180 gr GD bullets to 1300 fps out of a 5 or 6" barrel without any real problem and a bit slower with these 200 gr. That is very potent medicine in the right application. Deer, hogs, black bear, jerk asses would all find that pretty lively at the muzzle end.

I'm not saying the Gold Dot is the best bullet to choose for 10mm. Personally I think hard casts and some of the monolithics out there are much better choices, but I don't think bullet integrity invalidates the cartridge.

Did you just mean that you question the validity of 10mm when loaded with GDs?

No, just 10mm in general. I'm not a hunter, I don't live in boar and bear territory, so a 10mm isn't jumping out as a better choice than .45 to me, not when there are bullet issues with the hot loads and the weak loads aren't much better than .45 ACP +P.

Not to mention the short list of 10mm pistols vs .45's. Can get a .45 in any flavor, 10mm tho... you're stuck with Glock, RIA, Colt, and a couple others. I like the 10mm, I think it's an improvement over .45 ACP, but like .327 it's got a lot working against it.

I mean, if GD's work at the higher 10mm velocities, then that's the winning combination and all you need is one bullet that works with 10mm, same with .327. I haven't seen too many results of hot 10mm in gel or anything else, it's mostly the weaker 10mm I see tested.

I know a couple of hunters that have taken a fair number of pigs and deer with 10mm 180 grain Gold Dot bullets and report being very pleased with their performance.

Pigs and deer aren't people, but that still might teach one something.

Some .40/10 JHP bullets truly fail at 10mm velocities, and some do not. For some, they just expand even quicker and reach similar penetration depths - thus creating more "crush path volume," as well as more temporary disruption if you think that matters.

Yeah, with how popular .40 S&W is, there have been plenty of "cheap" JHP's made by the likes of Magtech, PMC, etc. and if you put them in a 10mm, I can't imagine the results would be good when the velocity is cranked up.

 

[CraigC]

I'm gonna test the 180's and 200's out of 10mm handguns to see how they do. I'll also check out the velocity difference between a 5" auto and a 5" revolver. That said, the best 'using' bullet in the 10mm is probably the 220gr Rimrock.

 

[Zaydok Allen]

I'm gonna test the 180's and 200's out of 10mm handguns to see how they do. I'll also check out the velocity difference between a 5" auto and a 5" revolver. That said, the best 'using' bullet in the 10mm is probably the 220gr Rimrock.

Curious if you've looked at these bullets from Doubletap. There is a 200 and a 230 gr hard cast option available from them.

The size of the meplate is what draws my eye, but the pics are grainy.

http://www.doubletapammo.net/index.php?route=product/search&search=10mm&page=3

 

[CraigC]

I think I have a box of them somewhere. I've been wanting to call DT and see if I can order their bullets. Although I have found no reloading data for them, or the 220gr Rimrock for that matter. As far as I know, Buffalo Bore uses them for all their cast bullets.

Still debating getting my GP reamed for 10mmMag. The lack of data over 200gr makes me hesitant but I like weird stuff. I guess the .41Mag would be too easy but I picked up one of those last week too.

 

[Zaydok Allen]

Although I have found no reloading data for them, or the 220gr Rimrock for that matter.

The lack of data over 200gr makes me hesitant

That's why I haven't bought any yet. They look like good stuff, but I need to track down some load data.

 

[CraigC]

I might just base what I do off .41Mag data and once I hit 1300fps, call it a day.