What is the difference between the 6.5mm 140 SMK and 142 SMK?

[dwm]

2 grains, right?

No, really, is one a tangent ogive and the other a secant ogive or something like that?

Do they shoot that much different from each other?

How fragile are they, about the same as a 140 AMAX?

 

[tillroot1]

the bc listed for the 140 is .535
the bc listed for the 142 is .595


the 142 is a much better choice for 1000 yard shooting, I do not know, maybe from 100 to 500 or 600 yards they may perform very closely. They have good strong jackets.
Ron Tilley

 

[dwm]

When you say good strong jackets, you mean they are much stronger than the 140 AMAX?

Would punch a hole in thin skinned game for example?

As opposed to expanding and doing significant damage.

I understand they are match bullets, just curious ...

 

[tillroot1]

When you say good strong jackets, you mean they are much stronger than the 140 AMAX?

Would punch a hole in thin skinned game for example?

As opposed to expanding and doing significant damage.

I understand they are match bullets, just curious ...

Doug, I do not have answers for your questions, I only have used them for target application. I would suspect pretty fast expansion and defragmentation, but that is speculation on my part. I would expect the same from the Amax as well but no first hand experience to back it up. Good luck, Ron Tilley