vihtavouri load data

[ghost21]

This may be helpful, Looks updated

http://www.vihtavuori.com/en/reloading-data/handgun-reloading/-40-s-w.html

[notfast]

I checked velocity on three occasions using a load with N340 and it looks like the book may be a little conservative on velocity.

VV test data for 6.3GR of N340, 165GR FMJ, OAL of 1.126 in a 5.5" barrel gives 1096FPS.

My barrel is a 4.6" LWD.

My load is:

165GR BBI (.400)

6.0 N340

CCI 500

OAL of 1.130.

Averages of 8-10 shots were 1044, 1029, and 1066.

SD for all three samples were in the mid-teens.

[perttime]

Different gun/barrel, different bullet, probably different primer and case. I haven't seen information about the ambient temperature they have during testing or how far from muzzle they take the measurement. Everything makes a difference.

I'm sure their velocities are actual numbers from tests.

[ghost21]

Just thought I would put up the link ,Incase anyone was interested!

[peterthefish]

Appreciated.

[perttime]

Vihtavuori powders are the most accessible ones for me, so they are all I've ever used.

Their data is the go-to reference when I want to load anything. Usually, I check a paper copy, or the latest PDF file of their Reloading Guide. They might not list my exact components, but I've always found at least a reasonable starting point.

[dhollis51]

this is where I started with N320