Sierra Heavy TMK 6MM Testing

[NDHUNTER24]

I would be very surprised if they market/advertise/insinuate the TMK as an expanding/hunting bullet, ever. That will lose any and all military contracts.

They could still make them and not say expanding/hunting bullet. Just do what berger or hornady does. Target, match, tactical. I get the point that some random guy might not buy it for hunting, but most guys that would shoot TMKs could care less what the packaging says.

 

[Kaleb]

Why would or should they change the marketing or labeling? Just make them. They don't seem to have any trouble moving their inventory.

 

[Taudisio]

How does that work for Hornady publishing gel test for the elds etc in the tap line?

Good question, I don’t know where or how they have them implemented in the military. To my knowledge, TAP (tactical application police) was for LE. It was also my understanding that the TMK is/was used in military combat. I may be completely off base and spreading misinformation so I will go sit in my corner with my mouth shut.

 

[TradLife406]

Good question, I don’t know where or how they have them implemented in the military. To my knowledge, TAP (tactical application police) was for LE. It was also my understanding that the TMK is/was used in military combat. I may be completely off base and spreading misinformation so I will go sit in my corner with my mouth shut.

Grok confirms this. Form would be able to double confirm it.

 

[IrkedCitizen]

Pretty sure the Geneva Convention dictates that you cannot use expanding bullets in combat/war that only Full Metal Jackets can be used?

Could be wrong though...

 

[Gstew1930]

 

[Schmo]

Pretty sure the Geneva Convention dictates that you cannot use expanding bullets in combat/war that only Full Metal Jackets can be used?

Could be wrong though...

I think you’re wrong. The 77 TMK was developed for a specific reason, and that reason didn’t have anything to do with matches

 

[BigMiss]

Pretty sure the Geneva Convention dictates that you cannot use expanding bullets in combat/war that only Full Metal Jackets can be used?

Could be wrong though...

Hague Convention. And the U.S. didn't sign that part.

 

[IrkedCitizen]

Fair. I'm looking forward to these bullets regardless. I don't intend on shooting two legged critters anyway. Lol

 

[Frozenlead]

I am super curious to see what a sectioned mkx would look like. Multiple people at Sierra acknowledged the TMKs capabilities and said they still think the mkx would outperform terminally. To what metric they may be referring to I’m not sure. Still makes me very curious but like you said I don’t know anyone who’s killed with one personally yet.

Found this on YouTube. He’s go sectioned MKX, SMK and TGK

Sectioned MKX vs SMK

 

[rafiki]

Found this on YouTube. He’s go sectioned MKX, SMK and TGK

Sectioned MKX vs SMK

side by side if you don't want to watch the video

 

[KyleR1985]

View attachment 1019490
side by side if you don't want to watch the video

Man,

I bet if you took the tip from the bullet on the right, and used it over top of a big cavity like the bullet in the middle, and a thin jacket like the bullet on the left, you’d end up with a really mean bullet……

 

[Formidilosus]

Man,

I bet if you took the tip from the bullet on the right, and used it over top of a big cavity like the bullet in the middle, and a thin jacket like the bullet on the left, you’d end up with a really mean bullet……

Yes. A TMK.

Grin

 

[Robobiss]

How does that work for Hornady publishing gel test for the elds etc in the tap line?

They only share that data on the hornady law enforcement page and show specific factory ammo that one would assume is geared toward LE.

What’s funny, is that for the most part, the same data isn’t always available for their actual hunting bullets. At least not as accessible. A lot of the hunting bullets have a super cool video that says a thing or two about impact velocity and what the bullet will do and that’s it. The Match/LE stuff has a lot more raw data.

 

[Kjc103]

Man,

I bet if you took the tip from the bullet on the right, and used it over top of a big cavity like the bullet in the middle, and a thin jacket like the bullet on the left, you’d end up with a really mean bullet……

If ONLY Sierra would make a bullet EXACTLY like that we could have a whole thread on Rokslide talking about it

 

[High Plains Cajun]

I think you’re wrong. The 77 TMK was developed for a specific reason, and that reason didn’t have anything to do with matches

The Mk 262 load made by Black Hills for the military is a 77 gr SMK. It is compliant as the rational is that the tip doesn't expand. The fact that it breaks off and achieves the same result is a technicality.

 

[Q_Sertorius]

Pretty sure the Geneva Convention dictates that you cannot use expanding bullets in combat/war that only Full Metal Jackets can be used?

Could be wrong though...

Mostly correct. It’s not technically in the Geneva Conventions, but The Hague Convention. They all sort of get lumped together in common parlance. The Hague convention doesn’t dictate FMJ. It prohibits explosive or expanding bullets (among a host of other things). The “target” for the original conventions were the British soft points made at the Dumdum factory in India.

At least during my deployments, we were careful to distinguish between the NATO ISAF counterinsurgency mission and the OEF Counter Terrorism mission. Troops supporting the ISAF mission were issued with “Geneva-compliant” 77-grain OTM ammunition, because COIN is a military mission. The slight hollow tip on the OTM wasn’t supposed to be designed to expand, but was purely designed for superior ballistics.

Troops supporting the OEF CT mission were not engaged in warfare, so they got to use the more effective 77-grain TMK ammunition. As a battalion, regimental, and SPMAGTF SJA, I was told to keep an eye out for and advise against my Marines getting their hands on CT ammunition.

 

[Q_Sertorius]

Hague Convention. And the U.S. didn't sign that part.

This isn’t true. The USA abides by that part. We just apply it very strictly and within carefully defined limits. Just about the only thing we don’t follow is the Landmine Convention, because our defense of South Korea is heavily dependent on land mines. But even there, we observe a lot of its guidance.

 

[schmidty3]

Small little Bullets that expand a bit when they hit

155 mm *bullets* that *self*-expand in the air at 20,000 fps into a million pieces after flying 20 miles

War doesnt make sense

 

[wind gypsy]

Mostly correct. It’s not technically in the Geneva Conventions, but The Hague Convention. They all sort of get lumped together in common parlance. The Hague convention doesn’t dictate FMJ. It prohibits explosive or expanding bullets (among a host of other things). The “target” for the original conventions were the British soft points made at the Dumdum factory in India.

At least during my deployments, we were careful to distinguish between the NATO ISAF counterinsurgency mission and the OEF Counter Terrorism mission. Troops supporting the ISAF mission were issued with “Geneva-compliant” 77-grain OTM ammunition, because COIN is a military mission. The slight hollow tip on the OTM wasn’t supposed to be designed to expand, but was purely designed for superior ballistics.

Troops supporting the OEF CT mission were not engaged in warfare, so they got to use the more effective 77-grain TMK ammunition. As a battalion, regimental, and SPMAGTF SJA, I was told to keep an eye out for and advise against my Marines getting their hands on CT ammunition.

Huh, didn't know they issued TMK ammo at all. Interesting and thanks for sharing.