Thread: Neck tension

Obviously consistency is key here but what have you found gives best accuracy?
Some swear by a heavy crimp others by as little as possible.

getting rid of the epander expander ball was the best thing i did
go busing dies

Any of the following:

Good brass
Neck turning
Annealing
Neck sizing only
Crimping

Yea yea yea but how much tension do you like and how do you measure it?
If measuring inside neck dia then brass thickness,brand, anealing could all give different tensions for the same measurement.

And here I was thinking this was going to be a massage thread.

Originally Posted by Rushy

And here I was thinking this was going to be a massage thread.

Or VC had pissed Neckshot off

haha, was waiting for someone to bring up the measurement issue(s)

as far as reloading is concerned, i'm of the "if you can't measure it, dont fuck with it" variety

Bushing dies

Measure loaded dummy round neck diameter
Use correct bushing .002 smaller

Job done

Originally Posted by tui_man2

Bushing dies

Measure loaded dummy round neck diameter
Use correct bushing .002 smaller

Job done

tryed less or more?

Originally Posted by tui_man2

Bushing dies

Measure loaded dummy round neck diameter
Use correct bushing .002 smaller

Job done

Abe, the problem with that is that the OD of a loaded round may or may not have any relation to the chamber.

Shoulder bump, you're looking at a fire formed case, and sizing relative to that... With a fixed diameter projectile, but variable neck thickness and variable chamber dimensions it all gets a bit random. If you are using a high-end barrel, and can specify how tight you want the neck in terms of the reamer, then turning the necks, and using a known size bushing makes sense.

Also, .002 bushing on very thin brass won't give you the same tension as on thick necks. So to get consistent tension, you pretty much have to turn the necks, which can cause a whole other set of problems with an average "loose" neck chamber...

Originally Posted by veitnamcam

Also 2 thou on say a 17 cal would be a lot compared to say 2 thou on a 50 Cal yes?

I don't load stuff that small or big so I don't care

Originally Posted by ebf

Abe, the problem with that is that the OD of a loaded round may or may not have any relation to the chamber.

Shoulder bump, you're looking at a fire formed case, and sizing relative to that... With a fixed diameter projectile, but variable neck thickness and variable chamber dimensions it all gets a bit random. If you are using a high-end barrel, and can specify how tight you want the neck in terms of the reamer, then turning the necks, and using a known size bushing makes sense.

Also, .002 bushing on very thin brass won't give you the same tension as on thick necks. So to get consistent tension, you pretty much have to turn the necks, which can cause a whole other set of problems with an average "loose" neck chamber...

All my brass is neck turned to .013 so again .002 works mint for me. Use no expanding balls just size them with correct bush.

I have .005 clearance on my loaded rounds so .0025 each side clearance, all mine are hunting guns in have no need to go super tight neck

Tried less and they move still. Try more and what's the point is holding them so tight.




Sent from my GT-I9300T using Tapatalk

Originally Posted by tui_man2

Bushing dies

Measure loaded dummy round neck diameter
Use correct bushing .002 smaller

Job done

Some of the recent comments Ive seen from Reading and Lee say 1thou as the bullet just expands the neck anyway and getting the bullet to do it isnt a good idea.

At the moment Im using the Lee neck sizer (and I think its doing well) but I have a Reading S comp neck die to try, I just need some new privy brass, the 1943 stuff I have varies hugely so I cant use a bushing die on those.

regards

If you use a bushing die but the neck has a dent will it pop it out or not?

Incorperating marksmanship principles with every shot work's well for me my neck is fine Gibo........a little fat but still works

Also 2 thou on say a 17 cal would be a lot compared to say 2 thou on a 50 Cal yes?