.40 S&W Advice

Hodgdon Book

155g 8.5 max
180g 6.9 max

Hornady Book

155g 8.8max
180g 7.6max

Both with a 4 inch barrel, 1 in 16 twist, both Hornady case trimmed .845", and both with Winchester Small Pistol primers. I was amazed that they were all the same.

Am I safe with the Hornady data in an XDm with 4.5" barrel?
I would likely start with the data from the powder manufacturer, and start making a dozen or so with a weight halfway between their listed minimum and maximum, to be safe. (If the maximum load only is given, then I would start 10% less than max.) I'd shoot those and if there's no problems, then I may decide to go to within 5% to 10% of the max. I tend not to make hot loads, but that's my personal preference.


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3700 Knox Butte Rd E, Albany, OR 97322, USA


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