Vihtavuori N105

Disclaimer: All of the following powder charges were taken from reloading manuals produced by gun powder companies or other reloading manuals that may vary in powder charges greatly. Various components combined, make all the difference in the world. I am not responsible for your actions. Always refer to official reloading manuals when reloading. As usual, I must say that this information is what works for me. Use your own common sense. You are responsible for your own actions!

I chose to test this powder because the Speer Reloading Manual said it worked well. After testing N105 all I can say is, "Yuck". With any charge less than 10.6 you could visibly see lots of unburnt powder chasing the bullet. Velocity consistency proved to be greater than I was expecting.

One nice thing about the three loads in the chart is that the bullet is resting on the powder. So the bullet can not slip --- no bullet setback is possible.

Steyr M357 with standard 4" barrel

Starline brass

Winchester primers

Rainier plated 124 grain flat point bullets (Excellent bullet for strong crimps)

OAL: see right most column for each OAL

 

Grains	High Vel.	Low Vel.	Extr. Sprd.	Avg. Vel.	Std. Dev.	Bullet Setback Cartridge Length
*10.6	1194	1158	36	1175	15	1.125 - 1.128
*10.9	1303	1248	55	1274	-	1.129 - 1.132
*11.2	1355	1314	41	1338	13	1.133 - 1.137

 

Version 02/25/01 from Pete's 357 Sig Caliber Page:

http://www.HandGunInfo.com/Archive/www.Pete-357.com