9mm Bear defense pistol ammo?

[DougR67]

Following

 

[Dewsie]

9mm +p hard cast in 147gr will work for both black and brown bears.

Both 9mm and 10mm have similar penetration when using hard cast ammo at decent velocities. You aren’t using hollow points generally in either for bear defense just due to the variability in penetration.

So, unless you feel that extra 1mm is going to make a crazy difference, you won’t actually find much difference between 9mm and 10mm, and real world tests as well as ballistics testing has shown this.

The tests I have seen show the 10mm absolutely beats the 9mm. The key is making sure you are using good Full Power ammo like Buffalo Bore or Underwood. A lot of companies under power their 10mm to the same velocities as a 40 cal.

 

[PantherMike]

I like Underwood, it shoots good groups on paper.

 

[Marshfly]

The tests I have seen show the 10mm absolutely beats the 9mm. The key is making sure you are using good Full Power ammo like Buffalo Bore or Underwood. A lot of companies under power their 10mm to the same velocities as a 40 cal.

Buffalo Bore states their Outdoorsman penetrates 3ft in 10mm and 4-6ft in 9mm.

 

[Shadowbandd]

Have had good luck using the Federal Solid Core 147grain +P.

 

[Justin (Raz) Rasmussen]

What would the opinion be of 115 FMJ’s? I would think they would hold together, penetrate bone, and begin to tumble, causing a lot of of internal damage. Am I off base on this?

What velocity is it loaded to?

 

[BLJ]

What velocity is it loaded to?

Whatever normal 115 FMJ 9mm velocity is from an Sig 365. I honestly don’t know.