FBI reason for. 40cal

[RugerFord]

Does anyone know the specifics as to why the FBI decided the 180gr .40 cal (10mm) JHP @ 950 fps was superior? Were the 9mm and .45 cal JHP at the time not fitting the parameters set and has technology made it moot today?

[warpedcamshaft]

Read this:

http://www.firearmstactical.com/pdf/fbi_10mm_notes.pdf

[warpedcamshaft]

Also, keep in mind that the document was written some time ago...

[jmlshooter]

They seriously said the .357 Magnum = .38 Special except at longer ranges.

That happened.

Wow.

[warpedcamshaft]

They seriously said the .357 Magnum = .38 Special except at longer ranges.

That happened.

Wow.

Incorrect, the article says that the difference in performance did not justify the "sound and fury" of firing it.

[Renegade]

Read this:

http://www.firearmstactical.com/pdf/fbi_10mm_notes.pdf

http://www.texassmallarmsresearch.co...m/FBI-10mm.pdf

[The_War_Wagon]

EEOC hires + full-house 10mm = injured limp wrists...

[jmlshooter]

That was seriously your takeaway?

This is written under the guise of scientific analysis. How do you quantify "sound and fury" such that those variables outweigh the performance difference between .357 and .38? There is NO comparison in performance.

The most prestigious law enforcement agency in the country just told you the .357 kicks too much and makes too much noise to care about the difference between it and the .38.

What an authority.

[jmlshooter]

Talk about a conclusion in search of a methodology!

The .357 is essentially ignored.

"What's the best load for a .357?"

"Who cares! The best .38 load's pretty much the same thing."

FBI said this.

[RugerFord]

If I read correctly, the FBI compaired the 180gr .40 cal to the 147gr 9mm and. 185 gr. 45cal and did not include other bullet types. I would think they would want to broaden the choices a bit. Concerning the noise vs. performance mentioned regarding the .357 vs. .38, I would think the same regarding the noise vs. performance with the .40 vs. .45... fair assesment?