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Joined: Jan 2002
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ed good Offline OP
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what is the affect on the shot pattern?

what happens when a plastic 2 3/4 shot shell opens up under pressure and the last 1/4 inch of the shell is forced from a 2 1/2 inch chamber into the beginning of the bore?

is the end of the plastic shell sometime riped in front of the shot column? what about the plastic wad? is that distorted by the restriction of the short chamber?

what about paper shells and over shot wads?

does any of this have an affect on pattern density and consistentcy?

so many questions...any answers?

ah don shoot no mo...so why should i worry?

Last edited by ed good; 09/21/22 01:12 AM.

keep it simple and keep it safe...
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Then don’t worry, if you’re looking for selling points for your “gons” you probably should make your own conclusions and leave people on the board out of it.

3 members like this: graybeardtmm3, Stanton Hillis, mc
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I was told years ago by a reputable gunsmith that plastic hulls were actually thinner than the old paper hulls and made the transition from chamber to barrel easier, in most cases. If your plastic hulls show signs of tearing your forcing cones are very tight. I am of the mind not to alter chambers or forcing cones but also own two classic oldies that have been lengthened from 2 1/2" to 2 3/4".


This ain't a dress rehearsal , Don't Let the Old Man IN
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Tests have shown about a 200psi increase when 2.75" are fired in 2.5" chambers with plastic hulls.


With a fine gun on his arm, a man becomes a sporting gentleman, both on the field and off.
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Sidelock
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duks: have you seen a test other than Sherman Bell's?
It's here about 1/3 down
https://docs.google.com/document/d/1ZIo0y746UsSRZIgRuuxwAbZjSBHitO_EanvwLYc-kGA/edit
The average increase in his study was 700 psi and 1 load increase was 1200 psi

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ed good Offline OP
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thanks doc drew for raw data...

700 to 1200 psi dont sound so bad, i guess...hard to say with no data or analysis provided for comparison...

how bout perceived increae in felt recoil? how does one measure that? in foot pounds?


keep it simple and keep it safe...
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mc Offline
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If you start at 10500 and add 700 to 1200 that could be problamatic .you edd are a nitwit there is tons of data your just to lazy to go looking Dr.drew presents data all the time try reading or don't sell guns you have to make excuses for.

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ed good Offline OP
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and once again we hear from the knave of the cheap shot...

you show us that you appear to know very little of what is discussed here and appear to be too full of yourself to aknowledge it...

as you appear to not be able to partake in positive civil discourse here, why not just sit quitely and listen...

Last edited by ed good; 09/21/22 10:02 PM.

keep it simple and keep it safe...
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ed good Offline OP
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so what about perceived felt recoil? how does one measure that? in foot pounds?


keep it simple and keep it safe...
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ed good Offline OP
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an mc ah jes cant be bothered wid you no mo...you have become boring and redundant...

pls do pick up your ball and go play summers else...

Last edited by ed good; 09/21/22 10:42 PM.

keep it simple and keep it safe...
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