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Joined: Jan 2002
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Sidelock
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OP
Sidelock
Joined: Jan 2002
Posts: 13,127 Likes: 1129 |
So, my "new" quail gun is regulated for slow 1 oz. loads, at about 1100-1150 fps. Dean Harris determined this for me. I thought, no problem, I'll just reload them. Got plenty of everything already on hand. Or, so I thought.
Tried the recipes in Lyman handbook for 17 gr. 7625 and for 15.5 gr. Unique. Using a WAA20 wad for an old style WW compression formed hull, as called for, it won't work. No way to crimp with a full 1 oz. shot in there, too full. It appears I need a shorter wad. Any ideas or suggestions? Only hulls on hand are the old style WW compression formed.
Please, no recommendations for less than an ounce of shot, or m.v. above 1165 fps.
Thanks, SRH
May God bless America and those who defend her.
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Joined: Mar 2011
Posts: 4,075 Likes: 441
Sidelock
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Sidelock
Joined: Mar 2011
Posts: 4,075 Likes: 441 |
What syle crimp? Roll or star? How much clearance from top of shot to hull's mouth? Gil
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Joined: Jan 2002
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Sidelock
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Sidelock
Joined: Jan 2002
Posts: 13,127 Likes: 1129 |
Pie crimp. Shot comes within 1/16" of top of uncrimped hull. Way too full.
May God bless America and those who defend her.
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Joined: Mar 2011
Posts: 4,075 Likes: 441
Sidelock
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Sidelock
Joined: Mar 2011
Posts: 4,075 Likes: 441 |
There are two 1 oz. loads in this list of archived loads by the Old Curmudgeon of BP. Little quicker, but a drop in powder charge would slow it down. Chronographed loads typically aren't as fast when I've shot them. https://www.ballisticproducts.com/load14_07_11.htmIn the BP Advantages manual I glanced at over 75 loads in 20 ga. 2.75" 1 oz. with a wide range of velocity and pressures. My experience with BP loads is that they will have at least one component not in your loading cabinet.
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Joined: Apr 2004
Posts: 869
Sidelock
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Sidelock
Joined: Apr 2004
Posts: 869 |
You have backed yourself into a corner with that target wad and hull combo....they were designed for a very narrow range of variables and maximum efficiency....
You could try to roll crimp it. Which could help with pressure and maybe back velocity down a bit for better patterns...although there is that pesky overshot card over small shot?
Surprised that was in the book.....did it spec a lot of wad pressure.
Card and fiber would make it fit but I dont know if I would want to jam a full diameter card wad into the taper case.
Best, Mark
Ms. Raven
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Joined: Jan 2002
Posts: 5,883 Likes: 106
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 5,883 Likes: 106 |
You need the (yellow) WAA20F1 wad for 1 ounce loads in the compression formed AA 20-gauge case.
The Winchester Ball Powder loading guide says Win 209, 21.5 grains of 540, WAA20F1, 1 ounce of shot, goes 1165 fps.
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Joined: Jan 2002
Posts: 13,127 Likes: 1129
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 13,127 Likes: 1129 |
I don't mind ordering other wads at all. Pressure was listed at 10,000+ on the Unique load, on the "high side". I can't remember with the 7625. I'd rather not use up my remaining 7625 on these anyway. I'd like to save it for my low pressure bismuth 12 ga. loads. Not enough room to roll crimp. I'm telling you, it's full. I have other powders available, too. Would just kinda like to use up some of these old style AA hulls. I'd order a flat of factory shells but everybody is out of stock on them, and quail season is here.
May God bless America and those who defend her.
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Joined: Nov 2020
Posts: 98 Likes: 12
Sidelock
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Sidelock
Joined: Nov 2020
Posts: 98 Likes: 12 |
Stan I use 23.0 grains of 571 which is about 1150 FPS. Chronographed out of my 28" REM 1100 LW 20. I don't know what the pressure is but 1 oz of 7 1/2 shot over a WW20 wad makes for a perfect fold crimp on older Winchester compression formed hulls. I have never used SR7625 so I can't compare. But if you would consider a different powder that works for me and makes very good patterns out of my old Remington. But hell I don't even know if you can even find 571 anymore. So that won't help if you don't have any....
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Joined: Jan 2002
Posts: 13,127 Likes: 1129
Sidelock
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OP
Sidelock
Joined: Jan 2002
Posts: 13,127 Likes: 1129 |
Thanks, Dave. I've got 540 on hand, I think. Have to check and make sure.
SRH
May God bless America and those who defend her.
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Joined: Nov 2020
Posts: 98 Likes: 12
Sidelock
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Sidelock
Joined: Nov 2020
Posts: 98 Likes: 12 |
Well, W572 appears to be a "better" replacement for 571. Didn't know that existed. May have to try some.
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