Houston I think I have a PROBLEM - The Firearms Forum

v8rx7guy · 08-26-2012, 12:25 AM

so im getting ready to reload some 223 im fairly new to reloading...

I have a hornady lock n load progressive press which i have reloaded about 500 7mm rem mag rounds with that have all been flawlessly and accuratly reloaded.

However im trying to reload 223 atm and cant for the life of me figure out why alot of my unsized necks on my brass are .245-.247.. in the hornady handbook of cartridge reloading 8th edition it shows me that the brass neck should be .253. i dont know where I messed up, Im thinking it probly happen when i removed the primers using the press... that it possibly shrunk the neck sizes and i dont know if its reverseable. but if not i just will have to throw away 1500 223 brass and take this as a lesson learned.

rcbs small base die set is what im using...

any and all help would be great

steve4102 · 08-26-2012, 04:50 AM

Quote:

Originally Posted by v8rx7guy

However im trying to reload 223 atm and cant for the life of me figure out why alot of my unsized necks on my brass are .245-.247.. in the hornady handbook of cartridge reloading 8th edition it shows me that the brass neck should be .253.

You should be fine. My sized 223 necks measure about .245-.247 as well. If it is new, once fired or recently trimmed, make sure you chamfer the inside of the neck.

If it is once fired Military/Surplus make sure you remove the primer crimp.

Bindernut · 08-26-2012, 06:11 AM

You're fine.

That .253" dimension you mention is the maximum case neck diameter of a loaded cartridge according to the SAAMI spec sheet.
You don't want to exceed .253" after you've resized the case and have a bullet seated.
If it is larger, then you will have to turn the neck down to thin the wall...but that extra brass had to flow into the neck from somewhere so it's probably time to discard that case anyway.

JLA · 08-26-2012, 06:19 PM

If its your intention to keep the necks unsized then you will need a universal decapper die. decapping with the FL die will size the cases.

V8 in a RX7 eh?? Got any pics??

BlackEagle · 08-27-2012, 12:50 PM

Hey v8rx7guy, welcome to the forum from across the pond. You have just found out one of the great points of this place. People here know what they are talking about, and are happy to pass on their knowledge, wisdom, and experience.

Around here there are no dumb questions. When it comes to reloading the only dumb question is the one not asked. Good answers from here can avert bad problems out on the range.

Ask away, and give us a range report when you get a chance.

Big Chevy · 08-27-2012, 01:27 PM

Welcome to the forum v8rx7, I would also love to see some pics of that v8 stuffed into a rx7

08-26-2012, 12:25 AM	#1
v8rx7guy Member Join Date: Aug 2012 Posts: 1	Houston I think I have a PROBLEM so im getting ready to reload some 223 im fairly new to reloading... I have a hornady lock n load progressive press which i have reloaded about 500 7mm rem mag rounds with that have all been flawlessly and accuratly reloaded. However im trying to reload 223 atm and cant for the life of me figure out why alot of my unsized necks on my brass are .245-.247.. in the hornady handbook of cartridge reloading 8th edition it shows me that the brass neck should be .253. i dont know where I messed up, Im thinking it probly happen when i removed the primers using the press... that it possibly shrunk the neck sizes and i dont know if its reverseable. but if not i just will have to throw away 1500 223 brass and take this as a lesson learned. rcbs small base die set is what im using... any and all help would be great -->

08-26-2012, 06:11 AM	#3
Bindernut Advanced Senior Member Join Date: Oct 2007 Location: ND, USA Posts: 2,440	Re: Houston I think I have a PROBLEM You're fine. That .253" dimension you mention is the maximum case neck diameter of a loaded cartridge according to the SAAMI spec sheet. You don't want to exceed .253" after you've resized the case and have a bullet seated. If it is larger, then you will have to turn the neck down to thin the wall...but that extra brass had to flow into the neck from somewhere so it's probably time to discard that case anyway. Last edited by Bindernut; 08-26-2012 at 06:12 AM..

08-26-2012, 06:19 PM	#4
JLA TFF Moderator/Host Join Date: Feb 2007 Location: Heart Of Texas Contributor Posts: 17,309	Re: Houston I think I have a PROBLEM If its your intention to keep the necks unsized then you will need a universal decapper die. decapping with the FL die will size the cases. V8 in a RX7 eh?? Got any pics?? __________________ It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze. The latest caliber or gear is no substitute for experience and skill. Rifles and cartridges don't make hits -- shooters do. Fact of life: After Monday and Tuesday, even the calendar says WTF!

08-27-2012, 12:50 PM	#5
BlackEagle Advanced Senior Member Join Date: Nov 2011 Location: UK Posts: 3,161	Re: Houston I think I have a PROBLEM Hey v8rx7guy, welcome to the forum from across the pond. You have just found out one of the great points of this place. People here know what they are talking about, and are happy to pass on their knowledge, wisdom, and experience. Around here there are no dumb questions. When it comes to reloading the only dumb question is the one not asked. Good answers from here can avert bad problems out on the range. Ask away, and give us a range report when you get a chance.

08-27-2012, 01:27 PM	#6
Big Chevy V.I.P. Member Join Date: Mar 2012 Location: S.W. Florida Posts: 345	Re: Houston I think I have a PROBLEM Welcome to the forum v8rx7, I would also love to see some pics of that v8 stuffed into a rx7