Bill & others!
If we think 22 LR ammo and compare it to lets say 6 PPC ammo and think also weakness of 22 LR ammo.
*We have 1 grain powder and 22 LR ammos case capacity is about 3,1 grain. There is powder about 32 % of case capacity. 6 PPC we have 100 % powder of case capacity.
*Priming mass is about 28-35 % 22 LR.s ammos force,powder force about 65-72 %.
*We are now trying to put together primers explosion and powder burning.
*We use now smokeless powder.Its burning depends VERY much of pressure where it is.
*22 LR ammo was designed to black powder,not to smokeless powder.
*As I have said I hate priming mass most of all in 22 LR ammo.
Lets talk what priming mass is making and mix there leade angle & leades surface to discussion.
We have about 12000 Psi pressure in 22 LR ammo. About 1/3 is coming from priming mass-->About 4000 Psi.(Those are offcourse approximations, I dont have measuring laboratory here)
Now I must go to kg/cm2/mm2,sorry to USA...
This 4000 Psi is about 281 kg/cm2.
22 LR bullets back is 0,22 cm2.
-->Primer mass stroke force to bullet is about 62 kg!!!!! (About 137 pounds)
You cant never get so big bullets outdraw force,that so hard stroke is not striking bullet forward first.
(My friends advice was that dont make crymping, glue bullets to case. I said, not yet,not yet,...)
1-2 degrees leade angle and very smooth leade surface try to make that bullet is going same distance from strike to strike and powder burning can happen near the same pressure & volume in the beginning?
If you are enough "gun fool" take bullets carefully off,take powder off and put new bullet back.Shoot with LONG barrel and measure how long bullet goes to barrel only with different bränds priming mass.
And measure also how much there is priming mass force variation inside same bränds.(Ofcourse waxing makes little differences to this test).
Change also crymping in case and look what happens with different crymping.
This primers stroke is heavy. 62 kg/cm2.
Bullets flies with its tail. Powder is now lying on the bottom.Intresting thinking is that how much this strike makes difference to bullets tail when strike is going direct up to bullet and on the bottom powder is saving little and strike is not straight....
Very difficult to test to me,because when changing powder to not burning material, I cant be sure is it the same as with powder???
I am pretty sure that human being can make ultimate or perfect 22 LR ammo but what are the costs of piece.
Also thought sometimes very funny thing, if we can kill group spread near zero,what then? Everybody shooting 750 / 75 X inside...
But thank to nature, average winds are going up all the time and we have wind reading left-.
BR, Timo
If we think 22 LR ammo and compare it to lets say 6 PPC ammo and think also weakness of 22 LR ammo.
*We have 1 grain powder and 22 LR ammos case capacity is about 3,1 grain. There is powder about 32 % of case capacity. 6 PPC we have 100 % powder of case capacity.
*Priming mass is about 28-35 % 22 LR.s ammos force,powder force about 65-72 %.
*We are now trying to put together primers explosion and powder burning.
*We use now smokeless powder.Its burning depends VERY much of pressure where it is.
*22 LR ammo was designed to black powder,not to smokeless powder.
*As I have said I hate priming mass most of all in 22 LR ammo.
Lets talk what priming mass is making and mix there leade angle & leades surface to discussion.
We have about 12000 Psi pressure in 22 LR ammo. About 1/3 is coming from priming mass-->About 4000 Psi.(Those are offcourse approximations, I dont have measuring laboratory here)
Now I must go to kg/cm2/mm2,sorry to USA...
This 4000 Psi is about 281 kg/cm2.
22 LR bullets back is 0,22 cm2.
-->Primer mass stroke force to bullet is about 62 kg!!!!! (About 137 pounds)
You cant never get so big bullets outdraw force,that so hard stroke is not striking bullet forward first.
(My friends advice was that dont make crymping, glue bullets to case. I said, not yet,not yet,...)
1-2 degrees leade angle and very smooth leade surface try to make that bullet is going same distance from strike to strike and powder burning can happen near the same pressure & volume in the beginning?
If you are enough "gun fool" take bullets carefully off,take powder off and put new bullet back.Shoot with LONG barrel and measure how long bullet goes to barrel only with different bränds priming mass.
And measure also how much there is priming mass force variation inside same bränds.(Ofcourse waxing makes little differences to this test).
Change also crymping in case and look what happens with different crymping.
This primers stroke is heavy. 62 kg/cm2.
Bullets flies with its tail. Powder is now lying on the bottom.Intresting thinking is that how much this strike makes difference to bullets tail when strike is going direct up to bullet and on the bottom powder is saving little and strike is not straight....
Very difficult to test to me,because when changing powder to not burning material, I cant be sure is it the same as with powder???
I am pretty sure that human being can make ultimate or perfect 22 LR ammo but what are the costs of piece.
Also thought sometimes very funny thing, if we can kill group spread near zero,what then? Everybody shooting 750 / 75 X inside...
But thank to nature, average winds are going up all the time and we have wind reading left-.
BR, Timo