MtJerry
11-13-2011, 06:46 PM
Found a nice load a few days ago with my Ruger GP100 and Security Six using Lyman 358439 hollow point and a stout load of H-110.
Tried the same load with a Lyman 358429 solid and the same load cast from 40/1 Pure/tin
It was too much for the alloy ... extreme slumping!! And a bore that was starting to lead after 12 rounds. Accuracy was good, and expansion was good as well. I've just never seen a bullet slump so much.
The groove you see in the boolit is the crimp groove. It really shortened the projectile!! Retained weight of all the rounds was within 1 grain of the starting weight.
http://i44.photobucket.com/albums/f17/MtJerry/DSCF0743.jpg
I also tried the same load with Ranch Dog 175 and got the same results - this time case of 50/50 air cooled
http://i44.photobucket.com/albums/f17/MtJerry/DSCF0744.jpg
Last but not least, I shot some Lyman 358439 HP over 6gr. of Bullseye ... this time I found that this load out of the 4" Security Six will EXPLODE at 25 yards. Can you imaging this on small game!! Devastating!
After the hollow point expanded, it sheared the petals off and made some interesting wadcutters!!
http://i44.photobucket.com/albums/f17/MtJerry/DSCF0745.jpg
Anyway, the moral of this story is if you want to know what YOUR load/alloy is doing out of YOUR gun .. you should do some testing. It's fun too! Never a dull day at the range ;)
Tried the same load with a Lyman 358429 solid and the same load cast from 40/1 Pure/tin
It was too much for the alloy ... extreme slumping!! And a bore that was starting to lead after 12 rounds. Accuracy was good, and expansion was good as well. I've just never seen a bullet slump so much.
The groove you see in the boolit is the crimp groove. It really shortened the projectile!! Retained weight of all the rounds was within 1 grain of the starting weight.
http://i44.photobucket.com/albums/f17/MtJerry/DSCF0743.jpg
I also tried the same load with Ranch Dog 175 and got the same results - this time case of 50/50 air cooled
http://i44.photobucket.com/albums/f17/MtJerry/DSCF0744.jpg
Last but not least, I shot some Lyman 358439 HP over 6gr. of Bullseye ... this time I found that this load out of the 4" Security Six will EXPLODE at 25 yards. Can you imaging this on small game!! Devastating!
After the hollow point expanded, it sheared the petals off and made some interesting wadcutters!!
http://i44.photobucket.com/albums/f17/MtJerry/DSCF0745.jpg
Anyway, the moral of this story is if you want to know what YOUR load/alloy is doing out of YOUR gun .. you should do some testing. It's fun too! Never a dull day at the range ;)