45 ACP for triple lock or 1917

beagleye

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I just started with this load on the 1896-1961 forum. But it might be more useful over in here. I am using this in a .455 triple lock converted to 45 ACP, I am thinking it might work just as well in a 1917.

The chamber throats in my gun are huge: .458. The grooves in the bore are .455. One of my goals was to use a bullet that would expand to fill that.

Also keep the pressure modest. This load came out of Speer number 13 manual and it was for a 250 grain lead bullet. Mine is 255 hornady lead cowboy bullet. Their starting load was 5.8 unique, max 6.2 at 824fps. I worked up to 6 even and called it good.

Also I didn't wanted to intrude too much into the case capacity and I wanted to shorten the gap to the throat. The throat jump in this gun is particularly long because the conversion to 45 ACP was done by removing some metal from the recoil shield instead of the back of the cylinder. So both of these issues lead me to seat the bullets out pretty far. I checked a 185 grain bullet depth to see how far it intruded into the case and I used that as a minimum.

Results were excellent so thought I would share.

Here's a normal 230 ball, my load and a 455 webley for comparison.


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This is twelve shot, 6 at 10 paces, 6 at 25.

0903111048a.jpg
 
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