resizing for ar 15

[CatShooter]

Quote from: 243winxb on Yesterday at 07:46 AM

If loading on a progressive press, i would want more than 3 thousands. Each station of a progressive may produce a different shoulder bump.

And then Catfish posted:

But only ONE STATION does any bumping.

Someone has to explaine to catfish the shell plate does not have a designated sizing position, a disciplined reloader would measure the deck height of each position on the shell plate to determine the effect of each position.

Then there is the basic understanding of shop skills. The shell plate hangs out and off of the ram. the cantilever effect reduces the effectiveness of the ability of the press to size.

F. Guffey

Well... since we all know that you invented the progressive loading machine, then perhaps you can contact Dillon and tell them they are making BIG mistakes in their designs.

Cuz actually, a progressive machine DOES have a designated sizing station, and even if someone was dumb enough to put a sizing die in the wrong station, it is still ONE STATION, unless you want to have more than one sizing die in a progressive press... but who would do something as stupid as that??

I personally own 2 Dillon 1050's, one Dillon 1000, and a Dillon 550, a commercial RCBS linear loading machine, and two Hornady Progressive machines... that is 7 progressive loading machines, and is just for the home play place.

For work... we do it larger.

Our brass came in 6x6x6 boxes... that are 6 feet by 6 feet by 6 feet weighing over a half a ton (No lot numbers ).

And moved the cases with a forklift.

Between 2010 and 2012, I loaded 18 tons (36,000 pounds) of 223.

So, Mister Goofy, tell me about progressive loading machines when you get chance, but AFTER you get through with telling Dillon (and Hornady and RCBS) what they are doing wrong.

 

[hogan]

"Shoulder bump"?

Need to be FL sizing your brass each and every time; IF you are concerned about smooth and reliable functioning

Loading for one rifle? Size at least .003 under your fired case oal. Got a Wilson Case Gauge and caliper, or RCBS Precision Mic? Those are great tools for diagnosis and verification of what is going on with your chamber.

Loading for more than one rifle? Using different headstamp brass in each? Probably should, otherwise size for .003 (or more) from the tightest chamber; the one that reads shortest oal from your case gauge/mic.

Wylde chamber and 5.56 chambers can be at great variance. Does it matter? Not really. You aren't likely to choose a barrel for match/precision performance with a 5.56 chamber.


Resizing brass that was once-fired in an unknown rifle? Like military brass? Might want a Small Base sizing die. LC brass is favored by Service Rifle competitors because it is durable and give a high number of loadings, plus cheap to buy so loosing some isn't a major bummer. Small base die gives an assurance of minimum brass specs for your initial firing. Probably more critical for 7.62 brass which is mostly machine-gun fodder these days...

If you're shooting precision chambered rifle, but want magazine feed length for your ammo, in a range situation; might find that a .001 under size of actual chamber oal, combined with SB FL sizing will deliver the round consistently with correct chamber seating. Lots of leeway in the variables, but the one MUST is consistent bolt lockup. If your powder produces lots of smoke and grime on cases, it could cause chamber failures in a .001 clearance situation.

Primer choice is also a big factor if chasing the minimum chamber with SA ammunition. .003 or more clearance pretty much assures no slam fires, although soft skinned primers like many match primers (Rem #7-1/2 is The Exception) could slam fire under more situations. So, load for clearance and use a primer that will take an FP indent. If loading for accuracy, no reason not to use Rem 7-1/2 primers....

Get the case gauging tool and know what is going on with your chamber.


As fare as Dillon progressive machines, there was an article in Tactical Shooter before it closed down by a Service Rifle competitor that loaded an avg of 7k rds per year for match and practice on a Dillon 550 machine. Had some tips about polishing the bottom of the powder measure reservoir and setups to hold die consistency. Of course, his aim was just to achieve 1moa performance for the x-ring game, if you are looking for benchrest results from a progressive, I suppose there is an easter bunny...

 

[fguffey]

Someone has to explaine to catfish the shell plate does not have a designated sizing position,

I can not type slow enough for catfish, catfish, the shell plate, we are talking about the shell plate, every case that is placed into the shell plate gets sized.

Call Dillon? The last time you demanded I call someone about sizing a case without case body support. I did not say sizing a case without case body was not cute. I don't bump the shoulder of a case without case body support, when I bump? everything gets bumped if I am using a bump press. I have presses that do not cam over, my non-cam over are not bump presses.

F. Guffey

 

[CatShooter]

Someone has to explaine to catfish the shell plate does not have a designated sizing position,

I can not type slow enough for catfish, catfish, the shell plate, we are talking about the shell plate, every case that is placed into the shell plate gets sized.

Call Dillon? The last time you demanded I call someone about sizing a case without case body support. I did not say sizing a case without case body was not cute. I don't bump the shoulder of a case without case body support, when I bump? everything gets bumped if I am using a bump press. I have presses that do not cam over, my non-cam over are not bump presses.

F. Guffey

Are serious?? I have no idea WHAT you are talking about.

I think you live in your own world of delusions...

 

[fguffey]

Are serious??

Catfish, shell plate, we were talking about the shell plate, every position on the shell plate gets an opportunity to size a case, it rotates.

F. Guffey

 

[CatShooter]

Are serious??

Catfish, shell plate, we were talking about the shell plate, every position on the shell plate gets an opportunity to size a case, it rotates.

F. Guffey

You have no idea what you are talking about.

No mater how many slots there is in the shell plate, the case is sized in only one station...

 

[fguffey]

Are serious??

???

F. Guffey

 

[asauer]

Not to butt into this delightful conversation, but I believe fguffey is cryptically trying to say that in a progressive press, since most have a rotating shell holder, you might not necessarily be using the same "slot" in the shell holder in the sizing station each time. (i.e. if you have a five station press and only 3 dies in it, then each time you have an empty slot come around, you put a piece of brass in to be sized).
He's just too damn weird to come out and say what he means. He'd rather drag it out for two hours while he attempts to make himself sound superior.

 

[asauer]

That being said, I see what you're saying catshooter. If the base plate does not rotate with the shell holder, the amount sized will always be exactly the same (or within reason) in that same station.

 

[bigedp51]

Are serious?? I have no idea WHAT you are talking about.

I think you live in your own world of delusions...

CatShooter

Stupid is as stupid does and he is the Forest Gump of the reloading world.

 

[fguffey]

Quote

Are serious??

Catfish, shell plate, we were talking about the shell plate, every position on the shell plate gets an opportunity to size a case, it rotates.

F. Guffey

Are serious??

 

[fguffey]

That being said, I see what you're saying catshooter. If the base plate does not rotate with the shell holder, the amount sized will always be exactly the same (or within reason) in that same station.

I see what you're saying catshooter

asauer, you do not have a choice, you are forced to agree with catfish. I do, I have a choice.

F. Guffey

 

[bigedp51]

So havent loaded much for auto rifles ... is 3 thousands shoulder bump enough for an AR 15 ?

Fguffey, I have choices and questions.

How many AR15 rifles do you have?

Not once in this posting have you answered the OP question on shoulder bump and all that has come out of your mouth is so much garbage.

and before you purchase dies you will spend the rest of your life talking about and never using learn how to measure the case. A small base die does not make the base of the case smaller in diameter. The deck height of the shell holder prevents the bottom .125" from being sized.

F. Guffey

You don't even know what a small base die does when the answer is in the dies name.

So please tell us who sells small base sizing shell holders

and what is the appropriate amount of shoulder bump for AR15 rifles.

 

[asauer]

fguffy,

I do have a choice. I used my brain. I couldn't care less about you two's bickering though as I do not use any progressive presses.

As to the amount of resizing for ARs, I've used both small base and regular. The small base die never seemed to help or hurt anything. There's a noticeable amount more force on the sizing operation, but case life has been the same. I toss them after 6 firings as the primer pockets start to get sketchy.

I haven't even measured actual shoulder set back. I just adjusted the die until an average of a few cases was smack in the middle of the Wilson case gauge limits. Not a problem.

You'll know if your cases aren't being sized enough by chambering a round, then attempting to manually eject it. Ask me how I know
You'll have a hell of a time because the AR has no camming action.