Morning,
Ive done a fair bit of research but keep getting conflicting info.
How much difference does a change of primer brand/type make.
Ive got a load im happy with on my 6.5CM with cci std large primers but they will run out and the options are change brand or rework with small primer brass. Am i looking at a complete new work up or is there a safe way to use the current load as a start point?
Ive got large and small, standard and magnum options.
Cheers
Nat
Changing Primers
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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
Re: Changing Primers
It can make a difference with both accuracy and/or pressure.
The normal guidance given in most reloading manuals (consult yours to confirm this) is that you should reduce your charges by 10% when making any changes to components and to work back up in small increments.
The normal guidance given in most reloading manuals (consult yours to confirm this) is that you should reduce your charges by 10% when making any changes to components and to work back up in small increments.
Re: Changing Primers
Much appreciated, it was where i was heading so good to get some confirmation. Its' not like i have anything else to do over Christmas!Chapuis wrote: ↑Wed Dec 21, 2022 9:07 am It can make a difference with both accuracy and/or pressure.
The normal guidance given in most reloading manuals (consult yours to confirm this) is that you should reduce your charges by 10% when making any changes to components and to work back up in small increments.
Cheers
B-)
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Lever357
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Re: Changing Primers
Interestingly, the reloading article this month in Rifle Shooter is about primers and it states changing the primer has the least effect on the load compared to changing powder, brass etc.
I use Sellior and Bellot, Federal, PPU and CCI and have not noticed any difference.
I use Sellior and Bellot, Federal, PPU and CCI and have not noticed any difference.
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