12 GA 3 inch Duplex loads

Open discussion on Tungsten Super Shot "TSS" Handloading.

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Fishh2o
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12 GA 3 inch Duplex loads

Postby Fishh2o » Mon Nov 28, 2016 5:32 pm

I've been shooting a 2 3/4 1-1/8 oz load with 1/4 tss. I want to up my payload and looking for loads to try. I want to use with either of these hulls:

Remington Plastic with Plastic Basewad - 12 Gauge 3" & Remington SP Plastic with Plastic Basewad - 12 Gauge 3"
OR
Federal One Piece Plastic - 12 Gauge 3"

I'm looking at #3x9tss for puddlers or #2X9tss for the salt water since its longer shots. Do you guys have any thoughts on loads?


Roll with it. If you stay above 55 the wheel wont fall off.

hawglips
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Re: 12 GA 3 inch Duplex loads

Postby hawglips » Mon Nov 28, 2016 6:51 pm

Fishh2o wrote:I've been shooting a 2 3/4 1-1/8 oz load with 1/4 tss. I want to up my payload and looking for loads to try. I want to use with either of these hulls:

Remington Plastic with Plastic Basewad - 12 Gauge 3" & Remington SP Plastic with Plastic Basewad - 12 Gauge 3"
OR
Federal One Piece Plastic - 12 Gauge 3"

I'm looking at #3x9tss for puddlers or #2X9tss for the salt water since its longer shots. Do you guys have any thoughts on loads?


I've got 3" Federal unibody data for a 1-1/4 oz (3/8 oz TSS x 7/8 oz steel) going about 1330 fps. PM me if you want it.



hawglips
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Re: 12 GA 3 inch Duplex loads

Postby hawglips » Wed Nov 30, 2016 12:02 pm

Don't forget to experiment on the order of stacking the two types of shot. TSS on bottom will blow through the steel, disrupting the pattern significantly - which can give you a great load. TSS on top gives you a tighter pattern, as a rule of thumb. Sandwiching steel above and below TSS gives a different option also.



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Fishh2o
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Re: 12 GA 3 inch Duplex loads

Postby Fishh2o » Fri Dec 02, 2016 2:33 pm

Hal,

What are your thoughts on the % of TSS to use? I've read somewhere that 20% of the load is what you should shoot for. If I have a regular steel recipe and substituted 30% with TSS in your opinion whats that do to FPS and pressure?


Roll with it. If you stay above 55 the wheel wont fall off.

hawglips
Posts: 324
Joined: Fri Feb 19, 2016 4:56 pm

Re: 12 GA 3 inch Duplex loads

Postby hawglips » Sat Dec 03, 2016 9:07 am

Fishh2o wrote:Hal,

What are your thoughts on the % of TSS to use? I've read somewhere that 20% of the load is what you should shoot for. If I have a regular steel recipe and substituted 30% with TSS in your opinion whats that do to FPS and pressure?


It depends on what outcome you're looking for.

For waterfowl loads, 20 to 25% by weight seems to work very well to "spike" the shell's performance while keeping costs down. 1/4 oz with 7/8 of steel works very well. If you go to a higher ratio than that, you have to be more careful about how you stack it.

If the goal is to do something radical with the shell, such as a heavy spreader load for turkeys while retaining long range capabilities, something like 45% TSS under lead works very well.



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greg.o'neal
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Re: 12 GA 3 inch Duplex loads

Postby greg.o'neal » Mon Apr 03, 2017 8:54 am

What affect does different crimps have on the duplex loads? i.e 6 or 8 or a roll crimp? Forgive me if question is not worded right. Im new to reloading.



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Fishh2o
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Re: 12 GA 3 inch Duplex loads

Postby Fishh2o » Tue Apr 04, 2017 2:11 pm

greg.o'neal wrote:What affect does different crimps have on the duplex loads? i.e 6 or 8 or a roll crimp? Forgive me if question is not worded right. Im new to reloading.



As far a fold crimping not too much.. If you roll crimp and compare to fold crimp the rolls have less pressure and lower FPS.


Roll with it. If you stay above 55 the wheel wont fall off.

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greg.o'neal
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Re: 12 GA 3 inch Duplex loads

Postby greg.o'neal » Fri Apr 07, 2017 9:12 pm

What length of brass is recommended for the tss shot, 12 gauge 3" shell for turkey?



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Re: 12 GA 3 inch Duplex loads

Postby Fishh2o » Sat Apr 08, 2017 7:46 am

brass doesn't matter at all.


Roll with it. If you stay above 55 the wheel wont fall off.


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