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Discussion Starter · #1 ·
I have aquired a lead mold for a 45-300-fn with gas check. I was hoping someone out there may have a load for this bullet to be shot in my marlin 450 or send me in the right direction. Just looking to shoot the big thumper a little more often. Thanks
 

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You could just use 45-70 trapdoor load data. The 450 has a slightly smaller capacity, so pressure and velocity will be a little higher with the 450, but the trapdoor data will still be safe.
Andy
 

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I use 20.0 grains of 2400 with .5 grain of poly fill with my RD 425 mold and it's a real pleasure to shoot. Plenty accurate to 50 yards, approximately 1250 fps from my 18" guide gun barrel.

It's a GC design bullet, but I don't need to use a GC with this bullet/powder combo. :)
 

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You might also want to try Accurate Arms XMP5744 for reduced loads in the .450. That powder is not position sensitive and I get sterling accuracy with it.
 
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