Originally Posted by otisrush

My apologies if you're aware of this but I'll say it anyway since you commented you're a new reloader:

Plunk testing is critical. I completely concur with Rule3's comment:

Your COL will vary depending on YOUR gun and barrel, you need to plunk test them for fit in your barrel.


I had a very sobering experience where my first 9mm loads worked fine in my Hi Power but not only didn't work in my PPQ, but scared the ^*$# out of me when the cartridge was too long, the action wouldn't go into battery, and I couldn't open the action back up.

The optimum COL and load for your Glock may be quite different from what is optimum for someone else, even if you're both using the same bullet, powder,

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