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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Sun Apr 10, 2016 9:58 pm 
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I'm sending out some 7/8oz promo loads to be tested to see what the pressures really are with modern components...I loaded gun club hulls, .890oz of shot, rem rxp20 wads, ched 209, and 11.7gn promo ...my 3/4oz loads are the same but with 12.0-12.2gn of promo and cb1075-20 wad so I backed the powder off a bit and used the rxp wad which generally requires more powder than the aa20 to achieve the same velocities and pressure so in this case it should give a better chance of getting a 7/8oz promo load I'm 20ga with a close to safe pressure level ...I'm not going to use this load and don't encourage anyone to try it ...stick to 3/4oz max! This is just for testing to see how high a simple 1/8oz of shot can spike pressure messing with 12ga powder in 20ga



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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Sat Oct 01, 2016 5:21 pm 
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Joined: Wed Jun 20, 2012 11:31 pm
Posts: 272
Just had to bring this excellent thread back to the top. I've been studying it for a month and just got done shooting some loads I put together.2 3/4"Federal Hull and wad,Winchester 209 primer,13.8 grains of Green Dot (2 pinto beans underneath the shot :mrgreen: ) with 11/16th of a oz. of Magnum 7 1/2 lead shot. Very low recoil out of my Red Label and Ithaca 37 although it is a bit dirty. It does a very good job of breaking clays to 35 yds with the modified and 40 or a little better with full. I'm very pleased with performance, and this will be a cheap practice load. Probably could shoot 16 yard trap if you got on em quick.


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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Sun Oct 02, 2016 2:57 pm 
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Location: Covington, WA USA
hehe, - The ¾ ounce "thread of justice", - I love it.

Also, don't forget the Vectan powders for these ¾ oz 20-gauge loads.

If you're Ok with 1200 fps, Vectan's A1 (loosely similar to Green dot) works :

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For 1250-1325 fps, Vectan's A0 is the better choice :

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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Sun Oct 02, 2016 4:14 pm 
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Joined: Sat May 03, 2014 11:34 pm
Posts: 409
Repub - Thanks for the above post. I am going to try loading a few flats with A0 and see how things compare to 20/28. 20/28 availability has improved lately, but nothing like having alternatives. {hs#

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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Sun Oct 02, 2016 6:25 pm 
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Joined: Sun Dec 14, 2014 4:28 am
Posts: 716
Nice! Not many folks had shot the vectan in 20ga when I was writing this, glad to finally see some good info!


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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Sun Oct 02, 2016 9:22 pm 
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Dave in AZ wrote:
Nice! Not many folks had shot the vectan in 20ga when I was writing this, glad to finally see some good info!
I thought you had got this thread stickied.

I petition that it should be.


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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Sun Oct 02, 2016 11:18 pm 
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Joined: Sun Dec 14, 2014 4:28 am
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Well, it got stickied, but then someone came through and undid all the stickies and just put a link to them in a single thread called "TOP THREADS Incl. Tips and Tricks for all major reloaders".

There's a link there in the first post I think ;)

I'm working on 3/4oz STEEL SHOT loads right now, I like that you can make a nice decoy 20ga load that fits well in a 2.75" hull.


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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Mon Oct 03, 2016 6:15 am 
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Dave in AZ wrote:
Well, it got stickied, but then someone came through and undid all the stickies and just put a link to them in a single thread called "TOP THREADS Incl. Tips and Tricks for all major reloaders".

There's a link there in the first post I think ;)

I'm working on 3/4oz STEEL SHOT loads right now, I like that you can make a nice decoy 20ga load that fits well in a 2.75" hull.
Yea, I decided this year the Mossberg 20ga will be the "paddling around in the yak gun". It's just the right size to fit in the rod holder and light and fast enough for jump shooting teal.

Let's talk about your load. I've been using one built on the CSD-20 and Alliant STEEL, 3/4oz of #4 steel in Rio hulls

I'm considering ITX for the 20ga but haven't made up my mind yet.


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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Mon Oct 03, 2016 7:22 pm 
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Joined: Sun Dec 14, 2014 4:28 am
Posts: 716
That'll be a separate thread. I've sent 10 loads in for testing in the last month all seven eights and 400 grain loads in a CSD 20 wad so little if any filler is needed. Three 1 ounce load using the Sam one wad in a 3 inch hull also. Was hoping for 7/8 oz in 2.75" going >1450 but that's still overpressure so far w csd.

Just did bpi invincible load in 20ga this weekend. 7/8 hw13#6 at 1640 or so. Worked well on ducks.


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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Fri Jan 13, 2017 8:28 am 
Field Grade

Joined: Tue Dec 08, 2009 7:37 pm
Posts: 92
My favorite 3/4 ounce load is 14.5 gr Alliant 20/28 with a CB-1075-20 wad in a Remington STS hull. It shoots soft and it will run my Beretta 391 Sport.


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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Tue Apr 04, 2017 2:29 am 
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Joined: Fri Nov 22, 2013 2:28 am
Posts: 86
I have Win AA CF old style hulls,win AA20 wads.I can use Fed 209 or Win 209 primers.
I would like to load 3/4 oz loads.I have Herco powder.How many grains of Herco should
I use and which primer?


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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Tue Apr 04, 2017 9:12 am 
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Location: Oregon
Contact Alliant
http://www.alliantpowder.com/questions/default.aspx

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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Wed Apr 05, 2017 12:42 am 
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Joined: Sun Dec 14, 2014 4:28 am
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From various Alliant books. This one is 1995.
20ga 2.75" Win-Western AA type shells (Win AA CF)
7/8oz shot, win209 primer, WAA20 wad, 16.5gr Herco, 9600psi, 1200fps.

Same with CCI209 primer, 10,200psi.
CCI209M primer, 17.5gr Herco, 10,000psi... THIS one totally doesn't make sense to me as the magnum primer should boost pressure and its another grain of powder, but less pressure... I wouldn't trust that datapoint, but it's there.

Just drop down the shot charge to 3/4oz, it will be safe and give more speed and less pressure. Herco is a bit slow for 3/4oz, they usually use Unique and Green Dot for those loads in the old manuals.


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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Wed May 10, 2017 8:16 pm 
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Joined: Wed Apr 14, 2004 12:11 pm
Posts: 3037
Location: Afton, VA
Loaded some 20 ga 3/4 oz with Green Dot and first box I tried was 25 straight. Pretty pleased with that. The load:
Remington GC hull, 3/4 Rio #9, CB1075-20 wad, Cheddite primer, 13.6 Green Dot.

It even cycled my Standard 1100 20 ga.

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 Post subject: Re: The 20 gauge 3/4 oz Thread of Justice
PostPosted: Mon Jun 12, 2017 2:52 am 
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Joined: Sun Dec 14, 2014 4:28 am
Posts: 716
I've been running the same thing almost on my MEC9000 with perfect crimps:
Rem GC, Win209, 13.8gr GreenDot (#24 bushing for me), CB 1075-20, 3/4oz #9 shot. Actually 338 gr, my bar throws #9 shot slightly heavy.
Based off the various Alliant loads of the same except they use Ch209 or Rem209P primer and max at 14.2gr.

Today I went to try the new Rem ACF hulls with the same recipe on the MEC9000. Strangely it was crimping too deeply for them! I was getting 0.075-0.085" deep crimps instead of .055" I get on the GC hulls. Had to back the center plunger on the crimp off several turns, then good crimps. Didn't expect that with the ACF, thought they were the very same... unfortunately I had reloaded all my GC hulls so couldn't measure OAL to compare.




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