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Old May 26, 2014, 02:51 PM   #19
Unclenick
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Join Date: March 4, 2005
Location: Ohio
Posts: 21,013
The narrow load range is funny. It's as if they thought it would fail to run the gun properly if they took the usual 10% off max. OTOH, they have some wider load and pressure ranges with some other bullet weights and not with others. Odd. Most powder measures have trouble holding a 0.2 grain range consistently.

The reason the recoil is mild is this stuff burn so fast that a small amount of Clays makes peak pressure before the bullet has gone very far. That small amount makes only so much gas, so that by the time the bullet gets to the muzzle the pressure is lower than with slower powders that need heavier charge weights to make peak pressure. You therefore get lower velocity from the same peak pressure and have lower rocket effect when the bullet clears the muzzle and the gas accelerates out.

A lighter recoil spring seems likely to solve the matter for you. I would also lightly chamfer the locking lug corners on the barrel and ditto the lug recesses in the slide with a scraper if they haven't been done at the factory. Then apply some Flitz to the locking lugs and to the barrel link lugs and around the muzzle where it meets the bushing. Rack it back and let go by hand 50 times with the Flitz acting as lube. Remove the Flitz with carb cleaner spray, then put light oil on and do it again. Clean out the oil, and then apply your usual gun lube. See if that smooths up operation and reliability.
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