Thread: The Importance of Using the Right Data

Much of 'the more current load data is heavily influenced by the "cover your arse" mentality of the companies' legal departments
and are often very safe but also quite a way from any "max" loading pressure. I'm in no way suggesting you disregard the data but
often safe loads and nodes are found above book data - you just need to take the appropriate care and attention.

Originally Posted by NZ_noddy

Much of 'the more current load data is heavily influenced by the "cover your arse" mentality of the companies' legal departments
and are often very safe but also quite a way from any "max" loading pressure. I'm in no way suggesting you disregard the data but
often safe loads and nodes are found above book data - you just need to take the appropriate care and attention.

Greetings NZ Noddy,
Modern load data publishers have definitely become more risk averse, especially and for good reason in the US. The more modern electronic pressure testing systems have revealed a more accurate measurement of pressure and there were some surprises. The 264 Win Mag data was updated recently after Remington started offering rifles in the calibre again and it appears that the pressure has been lowered from around 63,000 PSI to about 60,000 PSI. This may be due to large pressure variations in some loads which I have seen reported. This seems to afflict 6.5mm cartridges especially. My point, which I think you got, is to be aware of the range of data for the cartridges we load rather than pluck a load from the intrepid years of handloading and disregard the rest.
Regards Grandpamac.

Originally Posted by NZ_noddy

Much of 'the more current load data is heavily influenced by the "cover your arse" mentality of the companies' legal departments
and are often very safe but also quite a way from any "max" loading pressure. I'm in no way suggesting you disregard the data but
often safe loads and nodes are found above book data - you just need to take the appropriate care and attention.

Maybe but I often "analyse" loads posted on here with Q/L or GRT to try and get an approximation of the possible pressures they are running. Quite a few people are running loads that are probably well over 65,000 psi and some I'd say are in excess of 70,000psi. All fine and dandy with high quality, reliable components and good rifles but if one liitle thing fails, or some less well informed person tries the load then it may not end so well. You'd better be bloody sure you know what you are doing running any mechanical device over well established safety limits. Old pilots ( @grandpamac ) got old by knowing a thing or two about limits