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Pure opinion on my part- there ARE Bullseye loads in the manual for 45 Colt- but that is a REAL big cartridge case. B'eye seems to do best with lighter, cast bullets- around 200 gr. As you move up in size, I would go to Unique or 2400. There are probably better powders around- I simply always have Bullseye, Unique, and 2400 on the bench. YMMV.
 

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C3 is right, bullseye wouldn't be the first choice for 45 colt. I've been loading that caliber for 25 years and done a lot of experimenting. The most accurate load I've ever had and one I use almost exclusively in the Ruger is 9.5 grains of SR 7625 with a 255 grain cast swc. However that is listed in the Lyman manual for strong guns like Ruger and TC Contender. Chono'd at 950 fps with a 5.5 inch Blackhawk. If you want more powerful loads go with the slower burning 2400.

I find that if you push the 45 colt past 1000 fps the brass doesn't last too long. :)
 

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What are you looking to do with this load?
If I were to guess, you're looking at mild to midrange loads (Bullseye's forte.) As previously noted, Bullseye probably isn't ideal for that application. I'd look for bulkier powders that don't mind lower pressures. Unique will work, but is a bit dirty at lower pressures. It gets much better as pressures climb though. I haven't used it myself, but you might want to check out Trail Boss.

http://www.gunblast.com/IMR_TrailBoss.htm
[FONT=Arial, Helvetica]Trail Boss is a single base high-energy powder that is not only suitable for Cowboy Action shooters, but for any handgunner loading standard velocity loads for target shooting, plinking, or small game hunting. Trail Boss is also capable of performing well in moderate velocity loads suitable for hunting medium game such as whitetail deer. [/FONT]
 

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I'm new to reloading and am wondering the best place to find Alliant 2400 data for 45LC, 200gr bullet. I have Lee's manual (2019?) But it's mum about 2400 and 200gr. Have done 250gr bullet load at 15.4 gr8 and 14.0gr...any suggestions where I can find data for 200gr?
 

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i8.0 Unique and 255 LSWC have been the "standard" .45 Colt load for over a century.
What's going on in the Skunk Works: Medium burning powders are a favorite for 45 Colt since the invention of dirt. Unique may be the most popular. My favorite is Accurate #5 with 255 grain bullets. Unique is the standard. Loads using 2400 are usually used in the most heavy loads

When powder data is not given for a caliber there may be no satisfactory test results.

I'll be working up loads for 300gr. gascheck bullets for my Ruger's any time now. This will be a new bullet weight for me. "...any time now," means when I get bullets cast.

Alliant, maker of Unique, offers a free 2020 Reloader's Guide available on their website. Richard Lee's reloading book useful. I don't care about making my 45 Colt caliber revolvers into magnum's. I go along with what's already been suggested. Get some data and start loading 45 Colt with medium burning powder. Bullseye would be my absolute last choice for 45 Colt.
 
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