.223 for bear, mountain goat, deer, elk, and moose.

[NoveskeEnjoyer]

Does anyone have reliable expansion data on the TMK for 16" barrels? Using Black Hills 77gr TMK

I've read reports of 300 yards to 350 yards, seems shallow though for the TMK.

Thanks!

 

[SteveAndTheCrigBoys]

Does anyone have reliable expansion data on the TMK for 16" barrels? Using Black Hills 77gr TMK

I've read reports of 300 yards to 350 yards, seems shallow though for the TMK.

Thanks!

Use impact velocity, not distance. 2000 FPS to be safe, 1800 FPS if you want to stretch it, though it appeared to upset well at 1440 FPS.

 

[Ajsomp]

Does anyone have reliable expansion data on the TMK for 16" barrels? Using Black Hills 77gr TMK

I've read reports of 300 yards to 350 yards, seems shallow though for the TMK.

Thanks!

Stop thinking of platform or barrel length and think muzzle velocity. So many variables in your question. Shooting an animal at 350 yards from a 16” barrel at sea level and shooting 350 yards out of an 16” barrel at 7000’ will yield different velocities.

Your impact velocity will be influenced by your location and conditions. Figure out what your MV is, and you can utilize your conditions in a ballistic solver like shooter to give you a range where your impact velocity is at 1800 FPS or above.

 

[mt terry d]

Regarding keeping 77 TMK impact velocity =>1800fps

Since 1800 fps is basically an arbitrary number, and according to Sierra themselves,
"Tipped MatchKing® bullets are not recommended for most hunting applications",
is there evidence to show that consistent performance of this bullet under 1800 fps is
unreliable?
Just curious if/how the limits have been tested and what those limitations are.

 

[Billogna]

Regarding keeping 77 TMK impact velocity =>1800fps

Since 1800 fps is basically an arbitrary number, and according to Sierra themselves,
"Tipped MatchKing® bullets are not recommended for most hunting applications",
is there evidence to show that consistent performance of this bullet under 1800 fps is
unreliable?
Just curious if/how the limits have been tested and what those limitations are.

I don't think there was ever any "official published" number from Sierra. IIRC 1800FPS was consistently observed to be the lower threshold for reliable expansion with tipped match bullets by people who logged several hundred animals.