Colt king cobra cylinder gap

Emshey

Emshey

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Hello

Just wondering if anyone knows how to measure the cylinder gap in a 1990 colt king cobra, if I measure with the cylinder at a rest it’s 0.12 which would be considered big.

But if I measure it in full lock up (hammer dropped and trigger pulled) it tightens right up. It seems to tighten right up when the hammer strikes. (I put dummy rounds in and also tried spent casings same result happened)

is this how this revolver works normally?

I know this revolver will be a bit different than measuring modern smith and Wesson’s etc etc so I’m hoping someone here is familiar with this generation of colt revolvers.

Thanks :)
 
I had a look at Jerry Kunhausens manual on Colt revolvers and according to him,you measure barrel/cylinder gap with the gun decocked.Pushing the cylinder forward,the minimum gap should be .003 inches and remeasuring when the cylinder is pushed all the way back,should give a max measure of .008 inches.Colts have a cylinder hand which tightens against the cylinder ratchets when the trigger is pulled all the way to the rear,and this will tighten up the cylinder and move it forward slightly decreasing the barrel/cylinder gap.
 
sevoman said:
I had a look at Jerry Kunhausens manual on Colt revolvers and according to him,you measure barrel/cylinder gap with the gun decocked.Pushing the cylinder forward,the minimum gap should be .003 inches and remeasuring when the cylinder is pushed all the way back,should give a max measure of .008 inches.Colts have a cylinder hand which tightens against the cylinder ratchets when the trigger is pulled all the way to the rear,and this will tighten up the cylinder and move it forward slightly decreasing the barrel/cylinder gap.
Click to expand...

Slightly pushing to forward I get a tight gap of about 0.04 ish, when I push the cylinder back to get a bigger gap I get roghly 0.10-0.11

That gives me a endshake of about 0.07

Now wether or not that is acceptable on this particular revolver I have no idea, I have shot it and everything seems to function fine.

1990 colt king cobra
 
Also when I said it tightens up when the trigger is pulled I found that is just the firing pin pressure on the cartridge, so that might not actually help
 
Emshey said:
Hello

Just wondering if anyone knows how to measure the cylinder gap in a 1990 colt king cobra, if I measure with the cylinder at a rest it’s 0.12 which would be considered big.

But if I measure it in full lock up (hammer dropped and trigger pulled) it tightens right up. It seems to tighten right up when the hammer strikes. (I put dummy rounds in and also tried spent casings same result happened)

is this how this revolver works normally?

I know this revolver will be a bit different than measuring modern smith and Wesson’s etc etc so I’m hoping someone here is familiar with this generation of colt revolvers.

Thanks :)
Click to expand...

Are you missing a zero on these numbers? 0.12" is a huge gap. - dan
 
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