22 push thru sizer

fiver

Well-Known Member
yeah your only going one direction with the bullet, so all you need is something to overcome gravity.
 

Brad

Benevolent Overlord and site owner
Staff member
Only needs to keep it from falling out, the shoulder above the sleeve keeps it from moving up which is the direction of the force in sizing.
 

Brad

Benevolent Overlord and site owner
Staff member
Whoopsie, it's a push-through sizer, Dummy!
Don’t sweat it. Having people ask questions makes me think about things differently. That is a good thing.
I need to think on the set screw more. If I used ground tool steel it will be right at .500. I could use a .500 reamer for a snug fit so alignment would be far less of an issue. Tool steel has the advantage Ian mention of being hardenable but it also is far more difficult to machine easily so more time in polishing might be required. A trade off.
 
  • Like
Reactions: 462

Brad

Benevolent Overlord and site owner
Staff member

Ground and polished 4140 HT isn’t too expensive. At $1 per inch call it $1 per insert in materials. Pretty cheap really.
 

RBHarter

West Central AR
If the sizer tunnel is square to the top face and the step is square to the die and press axis a little float would allow the tunnel to self center on the ram and anvil/push rod .

Briefly someone was making a push through that used Lyman/RCBS size dies as bushings . So they used an established dimension for a 7/8-14 body and bore ID with a top step stop . I'd guess the O ring was enough to hold them in place .

Buckshot I think did a few ........maybe not . I'm thinking 2010/11 it just kind of went away probably because of separation of the H&I and needed paired anvils .
 

Ian

Notorious member
Keith Benedict made two runs of those on the other site. I bought one of the nitrided kits and just hold the H-die in there with bullet lube because it's tight anyway.
 

RBHarter

West Central AR
I was still getting beat up by being able to pour 100s of perfect 35&45 cal pistol bullets and doing the same identical thing and pouring junk 30&8mm bullets ....... There was no time for sizers and such ........but I did read about it .
 

462

California's Central Coast Amid The Insanity
I bought one of Keith's nitrites kits, too. Though the kit included a clip to hold the die in place, lube on its outside works just as well.

Ian, what do you use to ease the bullets passage. I've tried Hornady's One Shot spray lube, but wonder if there's something better.
 

Ian

Notorious member
Brad prototyped either the NOE gas check expander or seater by inverting one Rick K had, I don't remember which tool it was.

Michael, if the bullets are stubborn going through I roll them on an RCBS foam case lube pad prepped with case lube of the day. The main issue I had with Keith's tool is the punches are too short to push the bullets completely through the die, so the next in line has to. Air trapped and compressed between the bullets causes the top one to pop out and hit the ceiling. I made longer punches to prevent that.
 
  • Like
Reactions: 462

Ian

Notorious member
Yup. Took one bullet through the sizer before I yanked it out of the press, put it back on the lathe, and reamed it out with a 5⁰ tapered reamer.
 

Brad

Benevolent Overlord and site owner
Staff member
I usually go 2-3° but want the entry to be .010 or so over size diameter. Let the bullet slide into center and make sure a flared GC can easily slide in.
I also cut a good sized countersink at the opening to really prevent any shaving.
 

462

California's Central Coast Amid The Insanity
Ian,
Thanks for the tip. I use Sharp Shooter case lube (probably like Imperial Sizing Wax) so I'll dab some on a bullet every so often.

I made a longer push rod, too, from a piece of junk rod chucked in the drill press and turned down with a file. Very crude and not something I'd want to show anyone.