Anybody used Larry Willis belt die?

[tigerpan]

Anybody used this dies before?
I got some once fire 300 win mag has this kind problem.

http://www.larrywillis.com/

[LynnJr]

Tigerpan
I used one for a few years when I was shooting a 300 Ackley heavygun.
If you have a specific question post it but if your just wondering if the tool works yes it does.

[tigerpan]

Tigerpan
I used one for a few years when I was shooting a 300 Ackley heavygun.
If you have a specific question post it but if your just wondering if the tool works yes it does.

Thanks, because I got some once fire 300 win mag brass, it can't chamber in my rifle. because my rcbs dies can't sized near the belt

[LynnJr]

It's a collet you slide onto the brass that stops against the belt. After you slide it on the collet and brass get inserted into the die and it squeezes the collet down.
You lower the ram and slide the collet off then full length resize the brass.
It usually moves the shoulder forward about 0.001 so you need to size your brass after using the collet.

[fguffey]

Thanks, because I got some once fire 300 win mag brass, it can't chamber in my rifle. because my rcbs dies can't sized near the belt

[Fjold]

I've never seen that and I shoot a lot of belted magnum cases. I could see it being useful if you have multiple guns in the same chambering and one of them has an enlarged chamber.

I've never had cases that wouldn't chamber after sizing and I've worn out cases due to enlarged primer holes and split necks.

[ShaunBrady]

My experience is the same as Lynn's, they work.

I use one for my 300wm URSA gun ammo. The ammo is hot enough to need the Willis die after 3 firings. After that, I use it every firing.

That ammo is only used in that gun which has a match chamber. It takes a lot more work to get brass that was fired in my Sendero chamber to fit the URSA gun. The Willis die takes care of the bulge above the belt, but the rest of it is a mess. The Federal MilSurp 300 brass is even worse.

[LynnJr]

Frank
I used the Willis Die on 300 Ackley brass which is just a 300 Weatherby case with the double radius shoulder replaced with a 40 degree shoulder and of course less taper per inch on the body.
Weatherby Norma brass only lasted about 4 firings before the primer pockets would go away so I switched to RWS 375 H-H brass and a RCBS 300 H-H Improved die.
Directly in front of the belt the brass will try and bulge and if you keep going deeper on the die you end up pushing the shoulder back too far.
The options are a custom die set for $500+ or the Willis Die at $99. At the time I had 7 reamers in 300 Ackley and each gunsmith would cut each chamber a little differently except Jim Borden.
Many have simply turned the belts off.
If I didn't go to 300 WSM I would have chucked the 300 Ackley brass into my lathe and made a small funnel shaped cut across the casehead. Doing that lets the primer sit further back against the bolt face with the edge of the rim 0.0005 off of the boltface.
When fired at 63,000 psi the casehead reflattens itself out and tightens the primer pocket up but the amount of work it takes means it is only worth it on a round with obsolete brass.

Shaun Brady
Hey Shaun if you want to submit changes to the URSA Match procedure please pm or text me before Jan 14th.
Lynn

[fguffey]

Anybody used this dies before?
I got some once fire 300 win mag has this kind problem.

I've never seen that and I shoot a lot of belted magnum cases.

I have never run across a reloader that understood why I wanted Winchester dies to match their chamber or a chamber in my Winchester Model 70 that matched my dies. I do not understand the insistency on the part of reloaders to size a case to a chamber he does not have.

I have no clue where the OP cases came from. I do not know how they got into the shape they are in. If brass has the ability to snap back after firing where did his snap back to?

F. Guffey

[Fjold]

That's an interesting die, I can see the use for case forming.

[fguffey]

That's an interesting die, I can see the use for case forming.
__________________

[tigerpan]

Thanks, the brass is from my t3 and after size with RCBS dies it still fine. The problem is I have Rem700 being blueprinted, the once fire brass will not chamber. And I just sold t3, now I have a lot brass can't even use it.

[M1NM]

I put the collet die on my want list many years ago but still haven't needed it. My properly adjusted RCBS dies resize all my belted magnums just fine. 7mm Rem, 300 Win, 300 Wea, 458 Win.

[LynnJr]

Frank
You can take brass straight out of the box that won't fit into a shellholder before its ever been fired.
Most Benchrest shooters use the highest velocity accuracy node and toss brass that has grown 0.002 in the extractor groove.
I don't know how you got 0.008 growth in your brass but it sounds like you have multiple problems with your loading methods.

[Fjold]

Frank
You can take brass straight out of the box that won't fit into a shellholder before its ever been fired.
Most Benchrest shooters use the highest velocity accuracy node and toss brass that has grown 0.002 in the extractor groove.
I don't know how you got 0.008 growth in your brass but it sounds like you have multiple problems with your loading methods.

The only problem that I've had with new brass not fitting a shellholder was with some new Norma 6.5x284 brass but that problem is below where any belt would be. That problems was in the rim/extractor groove area.

I've never had a magnum case that wouldn't fit in a chamber after sizing and I've been reloading for belted magnums since 1995- 7 Mag, 300 Win Mag, 338 Win mag, 375 H&H and 458 Win mag.

I shoot my magnums almost every week and I burned over a brick of Remington Magnum primers last year. I just got back from the range about 1/2 an hour ago where I was shooting my 22.250, 6.5x284 and 375 H&H.