New brass

bstomper

Well-Known Member
Joined
Sep 20, 2011
Messages
253
Location
Saskatchewan Canada
I switch to a the eldm 140 for my creedmoor because I can’t find anymore 147’s. I thought it would be a good time to get new brass also because the brass I have now has several firings on it. I’m going from hornady to starline. My question is can I do load development with new brass or do I have to waste bullets and powder to once fire my brass
 

jpfrog

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LRH Team Member
Joined
Mar 19, 2011
Messages
836
Location
TX
I have some powder I do not use for actual loads but do use for fire forming with a mild charge. I also have bullets for the same purpose, which saves my "good" powder and bullets for my actual loads- or you could do the COW method and not use any bullets. You will need to fire form though- some say as many as 2 times to get new brass to a place where it won't keep growing on you and be consistent from load to load. You could skip and just load it new to save on your components, but you'll notice (more than likely) a change in velocities from firing 1 to firing 3 and may have to tweak your load with each firing anyway.
 

QuietTexan

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Joined
Nov 16, 2020
Messages
295
Location
Texas
How many pieces of brass? If you have a couple hundred, find a load that shoots in the unfired brass and use it. Tweak it with the first 50 cases once you've shot them all and shoot through them again. If you only have 50, you should be able to cycle them all through multiple times during your load workup, they'll stabilize about the time you figure out where you want to be.
 

Mikecr

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Joined
Aug 10, 2003
Messages
5,596
Location
NC, oceanfront
You'll be wasting powder & bullets with a brass change whether chasing your tail or following solid plan.
But tail chasing is never easier.

Better plan: stop changing things
 

bstomper

Well-Known Member
Joined
Sep 20, 2011
Messages
253
Location
Saskatchewan Canada
How many pieces of brass? If you have a couple hundred, find a load that shoots in the unfired brass and use it. Tweak it with the first 50 cases once you've shot them all and shoot through them again. If you only have 50, you should be able to cycle them all through multiple times during your load workup, they'll stabilize about the time you figure out where you want to be.
I have 200 of them so this sound like the best plan. Once I get the them all once fired I can adjust where I need. Thanks
 
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