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Fired (modified) case???

NorCalMikie

Gold $$ Contributor
When you fire a round, pull the case out of the chamber, put a bullet in the neck, do you have any neck tension??? (will a bullet slide in and out with no resistance??)
The reason I ask is: sent a case to Hornady to be modified, got it back. The case head was threaded BUT, the neck will not accept a bullet to slide in and out "like it should so the tool can be used".
Caliber makes no difference. Either the bullet slides in and out or it doesn't.

I have a BUNCH of modified cases from Hornady and on every one of them, the neck has been reamed so a bullet will slide in and out so you can use the gauge to check measurements/distance to the lands.
 
Back in the day, if the fired case neck was so tight that a bullet wouldn't easily slide into it, it meant that the neck needed to be turned to remove what was considered excess metal. Competition and desire for more accuracy has caused shooters to seek tighter tolerances, so it may be that now a tolerance so small that the bullet no longer slides into the case is desireable, but it seems the maximum load in such a situation would need to be approached very carefully.
 
I have quite a few of Hornady's cases. On two of them they were far too tight. I polished the neck ID until the bullets slid in as they should.

(On one case it would start and then jam giving a false reading).
I hope this is what you are asking about.
 
Exactly!! I've had a bunch of cases modified over the years from Hornady. When the "Modified" cases are returned to me, I can drop a bullet in the neck and it will "fall" into the case. I had one a while back that the bullet wouldn't fit in the neck.
If the neck is too tight, the Modified case will not work on the tool as it was designed to.
Just got one back and no way will a bullet "slide" in and out of the neck "as it should".
So, that means I'll have to figure out how to make the ID of the neck bigger so the bullet will slide "without" damaging the Modified case.
I was told by Hornady that they don't ream the case neck.??? How is the modified case suppose to work if the case neck isn't reamed so the bullet will slide?? 99% of my other cases were reamed so the bullet would slide. Not sure if I'am missing something or not.o_O
 
I do know that on any of my fired brass, not one is big enough in the neck to slide a bullet in and out without being reamed or modified in some way.
On the one previous Modified case that I got back, the neck was too tight for a bullet to slide so I tried working it in the reloading press. Turned it into junk real fast.:rolleyes:
 
well the easiest way i can think of to fix this is with an expandrel mandrel. probably hard to find one the proper size. you could modify a pin gauge to fit your expander die. or you could use one for a larger caliber and then use a neck sizing die with a bushing large enougb for the bullet to fall right in
 
NorCalMikie said:
I do know that on any of my fired brass, not one is big enough in the neck to slide a bullet in and out without being reamed or modified in some way.
On the one previous Modified case that I got back, the neck was too tight for a bullet to slide so I tried working it in the reloading press. Turned it into junk real fast.:rolleyes:
Click to expand...

Are you saying on a piece of fired brass, before resizing you can't slide a bullet inside the cases neck?
Just asking because I can on my fired cases of my 223 rem, 204 ruger, 6mm BR and a 7mm-08.
 
Pull the fired case out of the chamber and a bullet WILL NOT fit back in the neck. That's where a neck reaming is required to make it Modified. None of my fired brass is that way.
 
(Hornady modified cases that were too tight)I put mine in a Lee case holder chucked in a drill press. Wound up some 320 paper in a tight roll and made some passes in the neck with the case spinning. I finished with 600 just to be sporty.
5/16 x 36 is the tap. Size "L" (appox 9/32) is the drill if you care to roll your own
 
Whole neck clearance. You fire the round. The neck expands as the bullet leaves the case. There is spring back involved so the neck gets tight again. How much is the question. If it's too tight after the spring back, it'll have to be reamed/polished or whatever so a bullet will slide in and out with no resistance to be used as a modified case.
 
Richard Coody said:
well the easiest way i can think of to fix this is with an expandrel mandrel. probably hard to find one the proper size. you could modify a pin gauge to fit your expander die. or you could use one for a larger caliber and then use a neck sizing die with a bushing large enougb for the bullet to fall right in
Click to expand...
+100 on this. This is the way I fix mine. Expander Mandrel. You can order the tap and drill bit and do the cases yourself. I think it cost me a little over $20 for the tap and drill bit.
 
Recently had this problem with a tight neck 6BR (.269). The Hornady supplied modified case was too large for neck to fit in chamber. I took a fired 6BR case to my smith and had him thread the base to fit. I did inside expand a case to .257 first, but it was too sloppy.
 
I bought a small round file at the hardware store and filed the inside of the neck all the way around to fit the bullet. If you have a lathe, you can turn the inside of neck to be able to slide the bullet in.
 
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