WARNING!

DANGER! WARNING! CAUTION! Disclaimer of Liability.

Do not use information from this website to assemble ammunition. Only use current data from propellent, bullet, and reloading equipment manufacturers. They have proper laboratories and resources to ensure the integrity of their data. I do not. Any data here is for informational purposes only. Any liability from use of this data is expressly disclaimed.

Here are some free online resources: Hodgdon Reloading, Alliant Reloader’s Guide, ADI Powders, Western Powders, Speer Reloading Data, VihtaVuori Reloading Data. (Again, any liability from use of those sources is also expressly disclaimed — I can’t be responsible for their works.)

This blog includes informal reports of what I saw, using “consumer grade” equipment, in field conditions — not laboratory conditions. Being human, I sometimes misread and misrecord data as well. I don’t have an editorial or laboratory staff to catch typos, and verify results independently. Most disclaimers I’ve read say something like “these loads are only safe in the firearms they were tested in, and may not be safe in yours”. But actually, I don’t even know if they’re safe in the firearms they were tested in! All I know is that I didn’t notice any safety problems … yet. Cracks and metal fatigue aren’t always obvious. Maybe the 11th shot will rupture something, but I only fired 10 for the article. Maybe I cracked a forcing cone or slide, and won’t find out until I do a deep-clean of the gun later. And then there are all the uncontrolled variables like temperature, or even how I loaded the gun that day — I’ve seen more than 200 fps velocity difference depending on if the powder settled next to the primer or not! I don’t think it’s reasonable to call ammunition “safe in a particular gun” if it could blow up that particular gun on a warm day. But my testing protocols can’t totally rule that out.

Be safe. Think for yourself, and don’t trust my notes.