skb20 wrote:Davkrat --
Where did your penetration numbers come from? I'm not criticizing them, just curious on the source. Thanks.
I have a friend who has Lowry's program. I've sat down with it a few times and made these charts for quick reference so I don't have to wait to bother him. These are all for 59 degrees and sea level which is the default of Lowry's program and also pretty dead on where I hunt here in California. If you right click and "view image" on this last chart there is an additional table for Hevishot at 1300 fps that does not appear in the forum frames.
As for #2 shot I bet you can fairly easily "average between the next smaller and larger sizes and get a pretty good ballpark idea. After all these are nothing but ballpark findings anyways, gives you somewhere to start from.
For the leads the speed I use for ducks is 50 mph which equates to 73.333 feet per second. Just take the time of flight in seconds and multiply it by 73 and you will get your lead in feet for that shot size/type for muzzle velocity at the given yardage.
Hope it helps you guys out. I like to do "math for fun". My wife thinks I am INSANE!!!!!!!
"Davey the gorilla can take his orders from the talking Walnut, that way it won't be my bad thing." Therman Hermann