someguy2800
Member
I was doing some load development yesterday to use up some 158 grain bullets in my ruger 357 revolver with W296.
The published data I have for this combo is
hodgdon online data = 15.0gr start, 16.7gr max
Lyman bood = 16.3 start 17.0 max
older speer book = 15.8 start 17.8 max
anyway loaded some rounds from 16.5 to 17.5 in .2 grain increments and found that the 16.5 grain loads showed more flattening of the primers and more resistance to extraction (none were what I would consider sticky) than the 17.5 grain loads.
I recall also loading some 223 rounds for a single shot once with a below starting charge of benchmark. In this case I started at the published starting load and worked down in .3 grain increments and found that a couple grains below the starting load showed extremely flattened primers and sticky extraction to the point that I decided to pull the rest of the bullets.
How often do you folks witness this were pressure actually goes down with higher charges of powder?
The published data I have for this combo is
hodgdon online data = 15.0gr start, 16.7gr max
Lyman bood = 16.3 start 17.0 max
older speer book = 15.8 start 17.8 max
anyway loaded some rounds from 16.5 to 17.5 in .2 grain increments and found that the 16.5 grain loads showed more flattening of the primers and more resistance to extraction (none were what I would consider sticky) than the 17.5 grain loads.
I recall also loading some 223 rounds for a single shot once with a below starting charge of benchmark. In this case I started at the published starting load and worked down in .3 grain increments and found that a couple grains below the starting load showed extremely flattened primers and sticky extraction to the point that I decided to pull the rest of the bullets.
How often do you folks witness this were pressure actually goes down with higher charges of powder?