I was loading Winchester AA 12 Gauge hulls with 1 1/8 OZ lead and a Remington 209P primer for a total of 8,100 PSI and I noticed that i had inadvertently loaded 1 1/4 OZ and not 1 1/8 oz - what are the dangers of excessive pressure in the chamber because of this?
Will my gun blow up?
- Thread starter maverick936
- Start date
You might have to pull those loads, but first I would look in my manual for a 1 1/4 oz load with a similar primer and powder charge and see what pressure it runs at. If a 1 1/4 oz load in the manual uses more of the same powder, with similar other components, then you will probably be OK. This is just my opinion.
Gord
Gord
"...Will my gun blow up?..." Nope. It's the powder that creates the pressure.
Alliant's site gives both 1 1/8 and 1 1/4 loads with AA hulls and Remington primers using several powders. Assuming you're using 17 grains of Red Dot to get 8100 PSI, 19 gives 9500 PSI at 1200 FPS with 1 1/8 oz. Other powders give nearly 11,000 PSI.
There aren't any 1 1/4 Red Dot loads on their site. Any in the manual?
Alliant's site gives both 1 1/8 and 1 1/4 loads with AA hulls and Remington primers using several powders. Assuming you're using 17 grains of Red Dot to get 8100 PSI, 19 gives 9500 PSI at 1200 FPS with 1 1/8 oz. Other powders give nearly 11,000 PSI.
There aren't any 1 1/4 Red Dot loads on their site. Any in the manual?
Got Juice?
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Pull the load. Shotgun recipies are very well researched. I would pull or junk the rounds to be safe. Better than swelling your barrel.
Biggunners
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Read my sig line
When in doubt ----- Unload - Biggs
When in doubt ----- Unload - Biggs
If this were a bolt action rifle with a similar mistake in loading, I would be among those who have said to shoot them.
However, I know of two different, good quality 12 gauge guns which have blown up while shooting trap. No barrel obstructions, or other obvious reason to let go.
I would pull them apart.
However, I know of two different, good quality 12 gauge guns which have blown up while shooting trap. No barrel obstructions, or other obvious reason to let go.
I would pull them apart.
What are the complete details of the load including wad, powder, charge weight, etc.?
If you can find published data that matches the components with a 1-1/4 shot charge shoot them. If not taken them apart. You can recover the shot, powder and primers.
If you can find published data that matches the components with a 1-1/4 shot charge shoot them. If not taken them apart. You can recover the shot, powder and primers.
This^^^^
How many rounds are we talking about here? A couple dozen, or half a day cranking on a progressive reloader?
8100 target psi is pretty mild. I'd most likely shoot them. What gun? I wouldn't feel too bad about trying one or two in a decent modern pump-gun, for instance, but wouldn't consider sticking them into a decent English double without having a solid idea of what the pressures should have ended up at.
For a few, why bother even looking them up. If it's gonna be a looonnnggg day picking cases apart, I'd be more inclined to put in the research and see what the pressures looked like with the various load books. See what loads are listing with the 1 1/4 oz and similar charges/wads etc.
Cheers
Trev
How many rounds are we talking about here? A couple dozen, or half a day cranking on a progressive reloader?
8100 target psi is pretty mild. I'd most likely shoot them. What gun? I wouldn't feel too bad about trying one or two in a decent modern pump-gun, for instance, but wouldn't consider sticking them into a decent English double without having a solid idea of what the pressures should have ended up at.
For a few, why bother even looking them up. If it's gonna be a looonnnggg day picking cases apart, I'd be more inclined to put in the research and see what the pressures looked like with the various load books. See what loads are listing with the 1 1/4 oz and similar charges/wads etc.
Cheers
Trev
R&R Rancher
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Now way on God's green earth would I fire those loads!
If you screw a large drywall screw into the crimp, you can use a pair of pliers to pull it out and this will start to open the crimp. You may need a small screwdriver to open the crimp the rest of the way. Once the shot is out, put the correct bar in the reloader, and run them trough. The experience will help serve as a reminder to check and double check when reloading.
John
If you screw a large drywall screw into the crimp, you can use a pair of pliers to pull it out and this will start to open the crimp. You may need a small screwdriver to open the crimp the rest of the way. Once the shot is out, put the correct bar in the reloader, and run them trough. The experience will help serve as a reminder to check and double check when reloading.
John
