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NOT the locking lugs on the barrel. Good smiths get solid 2 lb trigger pulls, in the 1911, that stand up to 10,000 plus rds. For the FEW rds you need to fire with 'hot" hunting or defensive ammo, a HEAVY mainspring can give you a very safe, still VERY usable 4 lb trigger pull, while helping to contain a higher pressure load.

SO will using a 4 ozmuzzle wt on a barrel that's exposed from the front of the slide. It DELAYS the slide-barrel unlocking a bit. Not much,mind you, but a little. That lets the pressures in the chamber go down a bit, before the slide is freed up to come slamming back into the frame. Naturally, the front sight's being on the muzzle wt helps you swiftly regain a sight picture, and the wt, hanging off of the front end of the gun, helps control muzzle jump a bit. With this modification, a gun that is the same OAL and wt as a lw Commander can be as controlable as a steel framed commander.
 

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Mmmm, that weight is mounted on the front of the slide and the pressure pushes against the rear of the slide. Only that metal on either side of the ejection port holds the front and rear of the slide together.

More pressure means more stress on the metal on either side of the ejection port. More stress on that metal causes cracks to spread and slides to break.

Let's look at it mathematically:

more pressure = fewer teeth
 

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I like the new math!
 
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