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 Double struck primers
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Yonder
Average Member

USA
255 Posts

Posted - February 08 2021 :  12:49:38 PM  Show Profile  Reply with Quote
Bought a new to me used model 29-3 4 inch blued. Shot yesterday with some hand loaded 300 grain max loads. Thatís just what I had to shoot but not what will be commonly carried in it. Itíll be a 240 green jacket at hollowpoint for walks in the woods. What I noticed was some of the primers had what looked like a double strike after firing one of them centered and another offset may be at 6 oíclock. Anybody else ever experienced this or know what it might be? Is it Frame flex from to hot ammunition? Or ? Thanks. I donít plan on shooting any more of that. I will shoot some moderate velocity cast bullets and some factory 240 as well to see what the results are.

...And for the support of this Declaration, with a firm reliance on the protection of divine Providence, we mutually pledge to each other our Lives, our Fortunes and our sacred Honor.

gw
Advanced Member

4794 Posts

Posted - February 09 2021 :  05:01:43 AM  Show Profile  Reply with Quote
cylinder backspin and hammer bounce, which are characteristics of the S&W design in heavy recoil.

Not uncommon with 300gr loads

Cylinder stop bounces/unlocks under recoil, cylinder starts to spin backwards. Hammer bounces puts second mark on primer.

Heavier springs help, Ruger Redhawk helps better.

Added: newer enhanced 29s have larger cylnder stop notches and heavier stop spring

"Those who hammer their guns into plows will plow for those who do not..."

Edited by - gw on February 09 2021 05:10:21 AM
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Yonder
Average Member

USA
255 Posts

Posted - February 10 2021 :  4:57:10 PM  Show Profile  Reply with Quote
Thanks. No need for those heavy loads in this revolver.

...And for the support of this Declaration, with a firm reliance on the protection of divine Providence, we mutually pledge to each other our Lives, our Fortunes and our sacred Honor.
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