tuckerdog
02-23-2012, 08:04 AM
when cartridge firearms first came on the seen it was all pb boolits, when smokeless came on the seen it was still pb boolits. then came the magnum craze and everyone had to have the latest and greatest and fastest and pressures started to climb. casting your own started to be a pain in the butt and most people got away from it, it was easier to go to the store and buy, nobody had the time or the inclination to do for themselves.
Then casting started to make inroads and commercially cast bulk boolits were very cheap but, the sizing issue started to rear its ugly head and cast was deemed by many to be a sure way to mess up a good bbl.
In my experience pb will work until pressures begin to reach a given level, this is highly dependent on each individual firearm and the type and quality of rifling. velocity is a rough way of guesstimating pressure. after a ceatian point the lead starts to behave like taffey and pressure begins to work its way around the base of the boolit causing leading much the same way as an undersized boolit.
We can negate this effect somewhat by adding tin and antimony but only to a certian point then copper or paperpatching comes into play but too hard of a boolit is almost as bad as too soft I'm not sure as to why but with light loads,. super hard boolits have leaded everything I've tried to shoot them it regardless of sizing.
I have been using 75%pb with 25%ww and a touch of tin added to help fillout for a long time and have had good results and minimal leading for a goodly while. I dont worry about bhn or anything but finding the most accurate load in a givin firearm with a given boolit. The mag bug bit me for a while but I decided that it was like having to have the fastest compound bow, once you can shoot thru a moose why do you need anything more? It only makes shooting accurately harder and you cant killem any deader. the paper target or errant tin can dosent care how fast the boolit is going.
Bottom line shoot properly sized boolits, use a good quality lube, and save a little money by using a reasonable alloy, and most of all use what works for you.
If we stop and smell the roses it makes the world a much sweeter place to be.
The preceeding is purely my opinion be safe and teach you kids to survive without walmart and the internet!!!
Then casting started to make inroads and commercially cast bulk boolits were very cheap but, the sizing issue started to rear its ugly head and cast was deemed by many to be a sure way to mess up a good bbl.
In my experience pb will work until pressures begin to reach a given level, this is highly dependent on each individual firearm and the type and quality of rifling. velocity is a rough way of guesstimating pressure. after a ceatian point the lead starts to behave like taffey and pressure begins to work its way around the base of the boolit causing leading much the same way as an undersized boolit.
We can negate this effect somewhat by adding tin and antimony but only to a certian point then copper or paperpatching comes into play but too hard of a boolit is almost as bad as too soft I'm not sure as to why but with light loads,. super hard boolits have leaded everything I've tried to shoot them it regardless of sizing.
I have been using 75%pb with 25%ww and a touch of tin added to help fillout for a long time and have had good results and minimal leading for a goodly while. I dont worry about bhn or anything but finding the most accurate load in a givin firearm with a given boolit. The mag bug bit me for a while but I decided that it was like having to have the fastest compound bow, once you can shoot thru a moose why do you need anything more? It only makes shooting accurately harder and you cant killem any deader. the paper target or errant tin can dosent care how fast the boolit is going.
Bottom line shoot properly sized boolits, use a good quality lube, and save a little money by using a reasonable alloy, and most of all use what works for you.
If we stop and smell the roses it makes the world a much sweeter place to be.
The preceeding is purely my opinion be safe and teach you kids to survive without walmart and the internet!!!