Setting sizing die?

According to my calculations turning the sizing die five degrees further in will push the shoulder back an additional 0.001 inch. Five degrees is less than the movement of the second hand of a clock in one second's time. It's a pretty touchy adjustment so take your time, whatever method you choose to employ.
 
Once in awhile in cruising these sites and cruising through life, I run into guys such as those spewing nonsense here in this thread. They are always either the smartest guy in the room, or a wanna be that can only stand behind the blow hard and be cool by proxy. Yeah, I said small neck die, a decent guy woulda asked if I meant small base die, clearly what I was talking about. But these guys run in packs and love to bully anybody that disagrees.

In this case, it is clearly the 'smartest guy in the room syndrom'. Folks, it has been my experience that the 'smartest guy in the room' never is, especially when he is very sure of it.

I challenge y'all to try the method I put forward with a bolt action rifle and see if you can tell the difference, or, if you have the tools, try it and measure the difference. You will have to step from the shadow of the 'smart One' to see the light I am afraid, so I don't expect any progress here.

Learning is very hard when you already know everything I guess.
 
Originally Posted By: Sqeak'em
Really? Thats your comeback? The dudes hat?

Actually, I like the hat too. Is that a custom job? What X?

Sorry to drag us off topic, but then you might read something into that as well.

Grouse
 
Originally Posted By: RiverRiderAccording to my calculations turning the sizing die five degrees further in will push the shoulder back an additional 0.001 inch. Five degrees is less than the movement of the second hand of a clock in one second's time. It's a pretty touchy adjustment so take your time, whatever method you choose to employ.

Lemme just handle this right now and save catshooter the trouble.

SONNY BOY, you don't know nuttin! I KNOW EVERYTHING! I'm a BLAHBLAHBLAHBLAH....

You fill in the BLAH's.
 
Originally Posted By: The Famous GrouseOriginally Posted By: Sqeak'em
Really? Thats your comeback? The dudes hat?

Actually, I like the hat too. Is that a custom job? What X?

Sorry to drag us off topic, but then you might read something into that as well.

Grouse


It looks like it's screwed on a bit too tight to me.
 
Originally Posted By: CatShooterOriginally Posted By: big37dogOn the original topic
will new brass expand to the dimensions of the guns chamber on a single firing or would it be wise to neck size a number of times to make sure the cartridge is the size of the chamber before you bump it. ?

Normally, the first time fired brass will not fully fill the chamber - you will have 0.003" to 0.004" of head space and the body will also have about 0.002" thou of total clearance.

If it is a good bolt gun with fully contacting lugs on both sides, you will probably never get to the point where there is difficulty closing the bolt, because there is always a tiny bit of spring back, and with solid lock-up, the brass can only expand just so much.

But if the action doesn't lock up tightly, or only one lug has full contact, then the case might get to the point of being minus 1 thou headspace, which means that you will have some tightness in the final stage of lock-up.

When setting a FL die, you want to size the case the least you can (especially in the shoulder/headspace dimension), and still have the rifle function fully - any more sizing is just wasted case life, because it will lead to head separations.

So, anyway... yes, it is wise to neck-size and fire the case several times to make sure it has filled the chamber as much as it is going to...

... before setting up your FL die.


So if I were to neck size and fire the cartridges multiple times?
1. If bolt became tough to close I would use the gradual turning my Fl die until I feel resistance.
2. If I have a good gun, and never did feel the resistance I would need to use bump gages to achieve the minimal bump as required.?

Thx



 
Last edited:


Write your reply...
Back
Top