Other than the box they come in, of course.

If you only had one -- without the opportunity to compare, would there be a way to tell the difference?

Yes, the SB stuff has different striations and it's mouth is slightly different.

Yes a big difference. The 135 bullet is bigger and the hollow point is also larger and deeper then the 125 gr.

Could I trouble you for a little more detail?

As said above, the mouth is wider, the cavity deeper. Speer makes their HP's in two stages, designed to achieve their expansion criteria. The SB construction is clearly different and close inspection shows it striated deeper to cause easier expansion.

Here's what the 135-gr GD bullets look like before they're loaded, if it helps.

check out a recent gel test video of the 125gr out of a snub. there's some closeups of the bullet nose. looks like a narrower profile than the 135.

ScubaOz - YouTube

I compared them side-by-side and the nose for the SB version is wider. The cavity is also deeper.


But you have to have seen both to determine which is which later.

There's your answer right there...

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SWCA #3437

The 135 gr SB bullet looks like a 140 gr bullet that has had an extra 5 gr of lead removed from the nose. This would make the profile about midway between a 125 gr and a 158 gr bullet, quite a bit larger than a 125 gr. bullet. And, of course, my scale would know the difference.


rat

And just for fun, the "SB" version. Son-of-a...

HOLY MOLLEY, THEY'RE THE SAME PART NUMBER!!

We've been hornswaggled.

If you go back and look, both box labels say short barrell. Looks like just a label change somewhere along the way.The first label spells out short barrel just under the word gold dot, the 2nd label uses the abeviation SB.

Oh....

never mind.