16ga.com ~ View topic

Joined: 04 Mar 2019 Posts: 1952 Location: Central ND

Below is the link to Gualandi reloading data. I think it is worth a look because it has data for many powders including 700X, 800X, SR7625, SR4756 and IMR4227. There is a lot of data for euro powders, Cheddite primers and Noble Sport primers.

I have tried some of the 16 gauge data with 800X and N320, it's pretty nice data. It's all for Gualandi wads using Cheddite and similar hulls. In other words no powder migration because the wads used are all for straight wall hulls.

It includes many gauges and it is fairly recent info so you can get the components, except for the older powders. Velocities and pressures are not published, which will probably bother some folks, however it was all compiled following CIP Standards. The velocities I have recorded have been in the 1,200 to 1,275 FPS range.

I know it won't be useful for everyone, but it is another source of good information for those that don't mind experimenting a bit.

http://www.gualandi.it/docs/tabpolv_2013_eng.pdf

Mark , great chart .... had to look it up - 1 gram equals 16gns of gun powder .

Member Joined: 06 Oct 2007 Posts: 2397 Location: West MI

And 28.4gram=1oz

Thanks for sharing, nice to see more 16 & 24ga options.

Joined: 04 Mar 2019 Posts: 1952 Location: Central ND

FWIW, I have tried some of the Vihtavuori powders. I know they are expensive (Alliant maybe be more expensive now), but they are single base, they are bulky enough that things fit well and they are very consistent in terms of velocities.

IMO they are worth a look.