Custom sizing die from Widden

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Nature Boy

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I recently recieved Widden Gunworks click adjustable full length sizing die for my .308 and I figured I’d share my observations.

Up until now I’ve been using the standard Dillon die and it’s severed me well. My goal for switching was to have a die that minimizes run out, which I had read the Widden die does.

You begin my sending Widden 3 fired cases from the rifle you’re loading for and they make a custom die for it based upon the dimensions of those cases. You can also send them the drawing of the reamer that cut your chamber and they will machine the die to it.

Approximately 2 months later and $168 dollars poorer heres what I got.

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The die comes with a head space comparator you attach to your calipers to measure shoulder bump and instructions for set up. Following these I screwed the die down till it touched the shell plate then backed it off 1/3 of a turn and sized a case. Shoulder set back measured 0.004 and I’m looking for 0.002. Here’s where the click adjustable part comes into play.

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Dillion die on top, Widden die on bottom. There are ball detents in th locking ring that engage those longitudinal cuts in the thread. Each “click” is supposed to correspond to a 0.001 change in shoulder set back so I give it 2 clicks and size another case. Sure enough, it came out to 0.002 shoulder bump. After locking it down I doubt I’ll need to use that feature very often but I can appreciate the ingenuity that went into it.

The Widden die also has a mandrel instead of a ball for forming the neck diameter, which that say will yield 0.002 in neck tension. Here’s the difference between it and the Dillon (on top)

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I made a dummy round out of the test case and measured run out to be <0.001. We will see if that holds up over larger volumes. If so, not having to check run out will make the purchase worth it.

Finally, I chambered the dummy round and it fit the chamber, but noticably tighter than with brass fromed with the Dillon die.

Next I will take a number of Dillon formed and Widden formed brass to the range and see if there’s any discernable difference between the two as it relates to accuracy and consistency
 
Interesting. I've read about that die but it's too rich for my blood, needs. Glad it works as described. I'm assuming this is like most all custom dies. Will only work with the same wall thickness brass it was setup for.

Will be waiting for the field test which is where it counts. With your marksman's skills you will know fairly quickly.
 
From my notes in .223.

Redding seater did .001 to .005 runout, with many at .003 or less. (Standard seater with micro top, not the Competition seater)
Forster seater did .0005 to .003 runout, with most at .002 or less.

My Whidden seater did the same as the Forster. It's almost a copy of the Forster. A couple of pieces are interchangeable.
 
So this is rifle specific. Made for custom barrels cut with your reamer.....Shoot out the barrel, then cut a new barrel with the same reamer. This is for serious stuff!

I like their die nut....reminds me of Forsters, but made perfect. The only negative might be the diameter of them on your 650 tool head......you can still populate the head with other dies and still adjust them all while mounted....right? Obviously way bigger around than the tiny Dillon Nuts.

Sounds kool.....enjoy!
 
So this is rifle specific. Made for custom barrels cut with your reamer.....Shoot out the barrel, then cut a new barrel with the same reamer

That’s correct. I have another rifle being built right now and I sent Widden the reamer print to have a die made for it

As far as how it works on my 650, I only run one die when sizing and decapping so there’s plenty of room on the tool head
 
Got to the range this morning and shot this test.

5 shot groups at 100 yards as noted below. Looks like there might be an advantage using this Widden die

6C3CEBC9-DA95-4E88-817B-B2D9293F4358.jpg

Runout for all 20 rounds made using the Widden was 0.001 - 0.0005. Rounds made using the Dillon were 0.001 - 0.002. As the target shows, there were more flyers with the Dillon rounds.

Pretty convincing results
 
Good reminder: I never want to get on the wrong side of you. ;)

Yes! That looks positive! Good shooting!
 
Got to the range this morning and shot this test.

5 shot groups at 100 yards as noted below. Looks like there might be an advantage using this Widden die

View attachment 786459

Runout for all 20 rounds made using the Widden was 0.001 - 0.0005. Rounds made using the Dillon were 0.001 - 0.002. As the target shows, there were more flyers with the Dillon rounds.

Pretty convincing results

The results showed up on paper as being a 50% reduction is pretty definitive. I would stay don't even look back, it was a very good investment.

Nice shooting as always.
 
It was looking like the top right and bottom left targets on the Dillion side were going to blow the theory but they each had a flyer that opened them up.

There’s no doubt in my mind that concentricity plays a major factor in consistency of down range results.
 
Test.

Fl size fired brass in both dies, without the expander. Measure outside diameters of both necks. Average of 3 brass each, using a micrometer, if possible.

This should show how much the neck is being worked. More sizing =more runout?? Would be interesting to see the difference for me. Thank you.

What is the loaded rounds outside neck diameters average?

My bushing sizes about .002" smaller then a loaded round.
 
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@243winxb

I will do that test and post the results

I didn’t take any dimensional measurements besides runout. I will say that neck tension is greater with the Widden sized brass vs. the Dillon as indicated by feel and variation in seating depth. The Widden sized brass was 0.010 longer in OAL vs the Dillon with the same seater setting
 
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