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zeke · March 16, 2013, 04:32 PM

Pond-outside of sending your loads to be pressure tested, you appear to be indicating actually recording velocitys. Firing a factory round of similiar bullet and intent (full power, target, whatever) gives you an approximation of the velocitys you see from your individual pistol/rifle. This helps account for differences in the individual firearm are affecting velocity/pressure. Becoming familiar with how different the velocitys are from your individual firearm as compared to what is in the reloading manual helps. If operating in the higher pressure regions, paying attention to brass and primer type can help.

If you see some significant/huge increase in velocity, in a cartridge not known for being deliberatly loaded to lower pressures, real good chance you are operating above recommended pressures.

Pressure signs in higher pressure rifle loads are better indicators than pistol/revolvers, but may still only show AFTER you are exceeding safe pressures.

Certainly there are going to be exceptions, and different powders,primers,cartridges/firearms/load levels can/do/will behave differently.

March 16, 2013, 04:32 PM	#45
zeke Senior Member Join Date: November 17, 1999 Location: NW Wi Posts: 1,671	Pond-outside of sending your loads to be pressure tested, you appear to be indicating actually recording velocitys. Firing a factory round of similiar bullet and intent (full power, target, whatever) gives you an approximation of the velocitys you see from your individual pistol/rifle. This helps account for differences in the individual firearm are affecting velocity/pressure. Becoming familiar with how different the velocitys are from your individual firearm as compared to what is in the reloading manual helps. If operating in the higher pressure regions, paying attention to brass and primer type can help. If you see some significant/huge increase in velocity, in a cartridge not known for being deliberatly loaded to lower pressures, real good chance you are operating above recommended pressures. Pressure signs in higher pressure rifle loads are better indicators than pistol/revolvers, but may still only show AFTER you are exceeding safe pressures. Certainly there are going to be exceptions, and different powders,primers,cartridges/firearms/load levels can/do/will behave differently. Last edited by zeke; March 16, 2013 at 06:24 PM.