10mm Velocity?

[REDLINE]

What 10mm velocity do you expect to be reached from 4.5" - 4.75" barrels, with any bullet weight(s) you care to comment on, before you will consider it a "true" 10mm load?

[sqlbullet]

There are two ways to answer this question. 

First, the literal answer.  Any velocity which exceeds that which can be safely obtained with a 40 S&W is a 10mm load.  For 180 grain this would be about 1000 fps +

But to be considered clearly near the top of the 10mm chain I would say this:

200 gr - 1100 fps+
180 gr - 1300 fps+
170 gr - 1400 fps+

Those values will be exceeded by the hottest loads out there.  I won't comment on lighter bullets because I rarely look at them.

[Intercooler]

The best chart is the Bren Ten one for ammo.

[Intercooler]

https://docs.google.com/spreadsheet/ccc?key=0Ak5OC6bPsjO8dEh6eGZ3N3hpUU13SXM5cm9pZy16T0E#gid=3

[Intercooler]

I put that together and made it public for everyone.

[REDLINE]

https://docs.google.com/spreadsheet/ccc?key=0Ak5OC6bPsjO8dEh6eGZ3N3hpUU13SXM5cm9pZy16T0E#gid=3

That chart should be a sticky.  Nice job!  Really spells it out overall, without any rounding of numbers, from one end of the "power-spectrum" to the other.

[uz2bUSMC]

To me, in simplest perspective, any round doing 700ftlbs out of a standard length bbl.

[sqlbullet]

To me, in simplest perspective, any round doing 700ftlbs out of a standard length bbl.

This is actually a really good, easy to apply standard.

For those that might need it , the formula for ME is:

( Velocity * Velocity * Bullet Weight ) / 450450

Where velocity is in fps and bullet weight is in grains.

[REDLINE]

To me, in simplest perspective, any round doing 700ftlbs out of a standard length bbl.

This is actually a really good, easy to apply standard.

I'm thinking the same.