redding bushing size

[Niles Coyote]

I am thinking of trying a redding comp neck sizer (308 winchester).

My measured loaded ammo is .332 for winchester and .336 for lapua.

Am I right in thinking I will need .001 and .002 under these to get the proper tension or do I need the measured size as well?

 

[Niles Coyote]

Re: redding bushing size

Also has any one compared the comp bushing model to the standard bushing sizer. Is the Comp worth the money over the standard?

 

[mdmp5]

Re: redding bushing size

You will be good with .002 under your seated cartridge. So .330 and .334 is what you need. Just make sure you get the TiN bushings, and you might want to get the carbide kits too for the expander balls.

 

[mdmp5]

Re: redding bushing size

IMO, I would just go with the regular sizer, not the competition. Unless you really find it essential to partially neck size down to a precise point on the neck, the competition die is not going to do you any good. I don't personally see the need to partially neck size. I mostly FL size my brass, and with .308, I do it with the 'S' type FL bushing die. If I do want to neck size, I size the whole neck.

 

[Victor N TN]

Re: redding bushing size

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: palmik</div><div class="ubbcode-body">You will be good with .002 under your seated cartridge. So .330 and .334 is what you need. Just make sure you get the TiN bushings, and you might want to get the carbide kits too for the expander balls. </div></div>

+1 on the size bushing he stated. I prefer an undersized expander ball so it doesn't even touch the case neck. I use the "S" type full length sizing die only. For sizing I, personally, don't think the Comp die is worth it. I had bought 2 before I figured that one out. However the Comp bullet seater is a good thing to have. The "sleeve" type chamber helps align the bullets before they are seated.

Good luck,

 

[Cigarcop]

Re: redding bushing size

I agree with Victor, if you use the expander ball you just wasted your time with the bushing.

 

[427Cobra]

Re: redding bushing size

Are you sure that your measuring device is calibrated, I use .331 bushing on Win\BH, and .336 on Lapua, my fired brass measures .341, I size with a .339, .336(Lapua), then .331(Win\BH)

 

[ChrisGarrett]

Re: redding bushing size

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Niles Coyote</div><div class="ubbcode-body">I am thinking of trying a redding comp neck sizer (308 winchester).

My measured loaded ammo is .332 for winchester and .336 for lapua.

Am I right in thinking I will need .001 and .002 under these to get the proper tension or do I need the measured size as well? </div></div>

.336" and/or .335" for Lapua brass.

.332" and/or .331" for Winchester should be fine.

Some Winchester brass can be thin in the necks.

Don't forget your step down bushing, if you're shooting a factory barrel where your chamber/throat is blowing out your necks to .343"-.345", you might want to get a .340" or a .339" bushing and do an initial sizing. For my Savage 10FP, which blows the necks out to ~.344", I use a .339" or a .340" bushing and run two Neck sizing dies in tandem after my .308 body die, so I don't screw with spring-back.

The above assumes .002" of neck tension in my experience, reloading a bunch of different .308 headstamps.

Chris

 

[mdmp5]

Re: redding bushing size

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor N TN</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: palmik</div><div class="ubbcode-body">You will be good with .002 under your seated cartridge. So .330 and .334 is what you need. Just make sure you get the TiN bushings, and you might want to get the carbide kits too for the expander balls. </div></div>

+1 on the size bushing he stated. I prefer an undersized expander ball so it doesn't even touch the case neck. I use the "S" type full length sizing die only. For sizing I, personally, don't think the Comp die is worth it. I had bought 2 before I figured that one out. However the Comp bullet seater is a good thing to have. The "sleeve" type chamber helps align the bullets before they are seated.

Good luck,</div></div>

As Victor said, you should definitely get the comp seating die. I consider it an essential piece of equipment to have, and I will not seat my rifle bullets without it.

 

[Niles Coyote]

Re: redding bushing size

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 427Cobra</div><div class="ubbcode-body">Are you sure that your measuring device is calibrated, I use .331 bushing on Win\BH, and .336 on Lapua, my fired brass measures .341, I size with a .339, .336(Lapua), then .331(Win\BH) </div></div>

Yes, you are right. I had set my caliper .001 over when I was measuring bullets.

I have the comp seater and it is required equipment IMHO.

 

[Niles Coyote]

Re: redding bushing size

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor N TN</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: palmik</div><div class="ubbcode-body">You will be good with .002 under your seated cartridge. So .330 and .334 is what you need. Just make sure you get the TiN bushings, and you might want to get the carbide kits too for the expander balls. </div></div>

+1 on the size bushing he stated. I prefer an undersized expander ball so it doesn't even touch the case neck. I use the "S" type full length sizing die only. For sizing I, personally, don't think the Comp die is worth it. I had bought 2 before I figured that one out. However the Comp bullet seater is a good thing to have. The "sleeve" type chamber helps align the bullets before they are seated.

Good luck, </div></div>

Victor N TN,

Is the stem in the die something that can be turned down by the user (drill and sand paper) or does a replacement need to be ordered???

thanks

 

[Cigarcop]

Re: redding bushing size

It should come with a smaller head that will just hold the depriming pin in and not even touch the case neck.

 

[hfeo]

Re: redding bushing size

will the .002 neck be ok for auto loader with no crimp?

 

[Victor N TN]

Re: redding bushing size

Is the stem in the die something that can be turned down by the user (drill and sand paper) or does a replacement need to be ordered???


I grind down my own expander balls. But yes you can alter your own as long as you don't weaken it too much where it threads on the stem or holds the decapping pin. Most of mine are ball park of .010 to.020" smaller than a bullet diameter. That's small enough to not mess with the case necks. But large enough that if there is a mangled or bent place it will straighten most of it.

 

[MitchAlsup]

Re: redding bushing size

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: hfeo</div><div class="ubbcode-body">will the .002 neck be ok for auto loader with no crimp? </div></div>

0.003 is the tension needed for full function in autoloaders such as AR10. With 0.002 you may suffer from bullet setback or bullet spring forward.