• This Forum is for adults 18 years of age or over. By continuing to use this Forum you are confirming that you are 18 or older. No content shall be viewed by any person under 18 in California.

Problems with a tight 20 BR XP-100

Got a .2272 neck, and the turned necks are .222 loaded. Fired cases are .226. I know there is some spring back, but i'm always a little spooked when the fired case won't slip over a bullet. Is this something i need to worry about??
 
How many times have you fired these cases?

If they have been reloaded several times without being annealed the brass will harden and you will not get as much expansion at the case mouth as you normally would.
 
These cases were actually used 6 BR cases shot in a factory rifle. Got a good deal on them so i thought i'd try them, as primer pockets were still tight, and runout was good. If the cases are .226 fired though, does it not seem as though they're expanding to the neck wall,.005), then contracting .001? Should they spring back more than this??
 
Steve several years ago I started turning case necks. I found that on some cases that had been fired several times that the pilot for the tool would not enter the cases.

So trying to figure out the problem I measured the pilot, which was fine, so I started measuring the case mouths on cases that had been shot in the same rifle. Some of the cases had only been fired once or twice but a lot had been fired 7 or more times. The cases that had been fired a lot had very tight mouths. Annealing the cases fixed this problem.

So long story short if your cases have never been annealed and they have several firings on them they may have work hardened to the point that the case mouth is tight even after being fired.

I used to be intimidated about heating my cases but i was losing so many to split necks that i finally took the plunge and started annealing my cases.

There was a thread in one of the forums talking about case neck tension and accuracy.
 
JB, are u using the temp. pencils on your necks? I read the article here concerning annealing, and that seemed to be an inportant issue, and somehting that it seems like i need to start doing.
 
Steve I read a thread at VarmintAls site about annealing and followed his instructions. It really isn't that hard to anneal cases.

In my opinion you get rid of a ton of problems when you develop a program for taking care of your brass from proper cleaning to turning necks and segregating the brass in lots.

One thing I don't do is weigh cases, I am sure there is some merit to it but there isn't enough return for my time, others feel differently.
 

Upgrades & Donations

This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.


Click Upgrade Membership Button ABOVE to get Gold or Silver Status.

You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.


To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.

Forum statistics

Threads
165,934
Messages
2,206,391
Members
79,220
Latest member
Sccrcut8
Back
Top