Alternative 1892 hammer spring (Miroku)

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Project355

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Hey just wanted to report.....

A stock hammer spring for a Ruger SA, type XR3 (not XR3-RED), works well in a Miroku 1892, when trimmed to about 2-1/16 inches.

I tried several empty but primed brass, nice strong hits.

For curiosity sake, I deprimed those cases and reprimed, but intentionally left the primers "high" as I could and still remove them from the priming tool. Measured .004 proud of the case. At that point, the rifle obviously gave some drag when closing the action. Sorry I didn't see if the bolt face "seated" the primers a bit more. But, same great hits on the "high" primers, everybody went bang when they were asked to.

The Miroku is nicely made but the springs are insanely strong.

The magazine spring on mine measured a full 42 inches on a 20 inch magazine, had maybe 1/32 of an inch of "extra room" when 10 rounds of factory 45Colt (Remington) were loaded. It seems to feed very well at 36 inches of spring. I've read that 1-1/2 times the magazine length is about right, but... its ok as it is.

The ejector spring would kick empties clear into the next county, like 30 feet away and into the grass past the patio, or "stuck in the ceiling tile" when I was foolish enough to eject an empty case indoors the first time I tried it. And the hammer spring was another doozie. I'd report what the ejector spring got changed to, but I don't know what its from. But now the cases sail about 5 feet away very smartly, and land in about a 16 inch circle. Things see much better now.

And although I do notice a lock time change with the lighter spring, its still ok, especially considering the nature of this rifle - not a real "competition" grade gun.
 
Just wanted to add, I've invented a little fixture to put the hammer spring strut and the spring back into the lower tang fairly easily. Just a little lever where the hammer pin goes thru the lower tang. A notch in lever holds the strut, and a block of wood prevents the tang from moving. Crude, gets it done.
 
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