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Message: <blockquote data-quote="Blitzfike" data-source="post: 986165" data-attributes="member: 807">I use a lot of AA#5 for a variety of pistol rounds. Works very well for me, but there is an issue with using #5. If you seat the bullet too deeply in the case, pressures can skyrocket more with #5 than with most of the other powders. Be very careful to keep your overall length/seating depth as close to the recipe as possible with #5. I load carbine loads in both 40sw and 9mm luger using AA#7. I get consistently better velocity and accuracy with the #7 powder in 16 inch or longer barrels in those calibers. I probably load more ww-231 in 9mm and below than any other powder. I have used virtually all the pistol / shotgun powders to load light to mid-range pistol loads over the past 4 decades, but I find that I have better success with a wider variety of pistol calibers in small to medium cases with the 231. I would encourage you to try as many different powders as you have access to (published data of course..)You may find a particular powder bullet combination that works better in a particular gun, when I do that, that's what I stick with for that one.. Blitzfike</blockquote>