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Author Topic: Do you reduce the table loads for Rem brass?  (Read 462 times)

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Offline tacotime

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Do you reduce the table loads for Rem brass?
« on: July 20, 2011, 05:41:43 AM »
I had read that Rem brass was thicker and so less capacity than others.  Later I read about a guy who reduces the load for Rem brass.  When the load table shows WW or other brass being used for the table data, do you reduce your load if using Remingtion brass?  If so, how much?
 
Recently shot some 4064 in .375 and the max velocity showed up on the chrono several grains below the max load shown in the table.  They had WW brass and I had Rem brass, same bullet, same barrel, same powder, seating.  Primer was WLRM.  They probably had CCI mag primers.  But I wonder if the smaller Rem case capacity caused the higher velocity?
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Offline SHOOTALL

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Re: Do you reduce the table loads for Rem brass?
« Reply #1 on: July 20, 2011, 07:24:07 AM »
That's why it is suggested to "work up to max loads" It could be more than the brass . You might have a chamber bore on the small side of in tol. They could have had one near max. The lot the powder came from or primers may be a tad different . I had loads that were safe in winter but were very hot in summer .
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Offline necchi

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Re: Do you reduce the table loads for Rem brass?
« Reply #2 on: July 20, 2011, 08:28:28 AM »
Shootall said it, there's several different things going on with each load, gun and loader that effect the charge/preformance of the finished cartridge. It's different for each guy.
I've never been able to duplicate exactly what the book says velocity wise with the charge they list.
 
If I have to change brass for a load I back off and go up too it again and usually do find changes. With that said do I back off just because it's Rem Brass? Not really, I just do normal working up load development with all brass  :P
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Offline Bigeasy

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Re: Do you reduce the table loads for Rem brass?
« Reply #3 on: July 20, 2011, 08:58:47 AM »
All good advice above.  One place you want to pay particular attention is with military brass, as some tends to be quite a bit heavier (less capacity) then most commercial brass.
 
Larry
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Offline necchi

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Re: Do you reduce the table loads for Rem brass?
« Reply #4 on: July 20, 2011, 09:56:01 AM »
I was gonna add that part about the mil brass, The ones I have ARE much smaller in the capacity dept, but I understand some of the newer LC 223 nato stuff actually has a large capacity.
 
It's something that one needs pay heed too,
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Offline SHOOTALL

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Re: Do you reduce the table loads for Rem brass?
« Reply #5 on: July 20, 2011, 10:38:32 AM »
hummmmm there might be an indication with military brass 5.56X45 vs 223 remington just saying......
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