Originally Posted By: N2TRKYS
Originally Posted By: AU338MAG
Be careful with using powder charges listed for one brand of bullet and substituting another brand of bullet. Different bullets develop different pressure levels due to bearing surface, jacket material and internal construction. What may be listed as a safe maximum load for Brand A 165 gr bullet may be too hot for Brand B 165 gr, bullet with the same amount of powder.



I'm only using Accubonds and Partitions. Have you noticed any pressure spikes switching between these two?


There will probably be a slight difference in pressure. Partitions have a longer bearing surface than the equivalent weight Accubond as well as the difference in internal construction. Reduce by a couple of grains and work your way up and you should be OK.

The types of bullets which can really change the pressure are the Nosler E-tips as they are monolithic construction. Never used them because I'm not a fan of mono's. Also, some manufacturers used 100% copper jackets and some use gilding metal, which is typically 95% copper/5% tin. Nosler uses gilding metal for their bullets, which typically does not produce as much pressure as pure copper.

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