Full length sized brass hard to chamber

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Re: Full length sized brass hard to chamber

Post by Chronos » 03 Dec 2014, 9:07 am

schink wrote:Well someone was right... Don't know who but it's fixed now :lol:

We hand loaded a batch and did the following.

  • Checked sizing die, and made sure it was screw down another 1/4 turn after lifting the ram and setting it.
  • Trimmed the necks, the longest ones needed around 2mm off.
  • Started again with my cartridge OAL and tripled checked, am 100% sure bullet is not touching the lands.

So somewhere between the 3 he was a little off. Double checking everything though now they load and extract smooth as :)


People underestimate the value of measuring the case headspace when setting their sizing die. I check the cases before and after sizing every time i set the sizing die, .005" too high and the casewill grow longer when F/L sized, .005" too low and you're case will be minimum spec, unnecessarily over working the brass.

case length was 2mm off? a major issue there too.

glad you got it sorted mate, no go out and shoot it :D

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Re: Full length sized brass hard to chamber

Post by schink » 03 Dec 2014, 10:30 am

Not on all, but the necks were up to 2mm longer on the worst ones, yep.
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Re: Full length sized brass hard to chamber

Post by Gregg » 03 Dec 2014, 10:32 am

COLLECTOR 1 wrote:Im betting the necks may need a trim, 243's are hot mothers that need tlc..lol


With heavy pills and loads they do grow fast.
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Re: Full length sized brass hard to chamber

Post by 1290 » 03 Dec 2014, 1:40 pm

schink wrote:Not on all, but the necks were up to 2mm longer on the worst ones, yep.


Longer than what? the others? just being longer doesnt send them out of spec....what did you trim from and too??

Max case is 51.94mm, while minimum chamber is 52.20mm, so even if the cases were at the minimum chamber (over spec length) they would chamber, even a smidge longer they would hit the chamfered/ramped part of the chamber (0.68mm) where it goes from neck straight to leade (243 has zero freebore)
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Re: Full length sized brass hard to chamber

Post by schink » 03 Dec 2014, 3:00 pm

I'm using the Lee trimmer with the length gage that you push into the case and it stops the cutter at the right height.

Meant to say when I trimmed them, the worst cases needed about 2mm of neck trimmed off.

I don't have the length handy, but whatever the Lee trimmer does them to.
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Re: Full length sized brass hard to chamber

Post by COLLECTOR 1 » 07 Dec 2014, 8:11 pm

problem solved,,,,by somebody somehow,,,lol

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Re: Full length sized brass hard to chamber

Post by Weepy » 08 Dec 2014, 2:02 pm

I'll just take credit for it so we can wrap this up :D
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