Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Techniques For Reloading


Reply

Trimming before or after fireforming?

 
LinkBack Thread Tools Display Modes
  #1  
Old 03-03-2013, 09:31 PM
Silver Member
 
Join Date: Dec 2007
Posts: 103
Trimming before or after fireforming?

I have 100 pieces of new norma brass and would like to trim them all uniform after fireforming, however by shooting these fire forming loads untrimmed the accuracy is not going to be there like if they were all trimmed to the same length. I would prefer to have accurate loads I can use while fireforming but would also like to do my trimming after the first firing. Does anyone trim before and after the first firing? Please explain what your process is for this. Thanks.
Reply With Quote
  #2  
Old 03-03-2013, 09:49 PM
Platinum Member
 
Join Date: Dec 2011
Location: Michigan
Posts: 1,095
Re: Trimming before or after fireforming?

Are you fireforming for an improved chamber or just refering to getting virgin brass fireformed to your exact chamber?

In the case of an improved chamber, I trim to the listed "trim-to" length of the parent cartridge, firm form, bump the shoulder, neck size, and then trim to the listed "trim-to" of the improved cartridge if necessary.

If you are just fireforming virgin brass to your chamber (not improved) you may want to try this:

Determine your shortest piece of brass and make sure it is in-spec (longer than trim-to, shorter than max length). Trim all your brass to that length. After fireforming and sizing, you can then trim them all to listed "trim-to". Of course, you can always just trim them all to listed "trim-to" after every firing/sizing, and then you are guaranteed consistent.

Just make sure they are in spec - that is more important than anything!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes



All times are GMT -5. The time now is 06:55 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC