|
25-06ai
After having shot this cartridge for the last two years I have found with Ackley cases primers are not a good indicator of pressure. I have found that case head expansion is a better indicator of high pressure. Often primers on Ackley cartridges with loads that are 5000cup over SAAMI max pressure will not show any indications of high pressure but case head expansion will.
My fovorite long range varmint load sents a 100grain Nosler Ballistic Tip down range at just on 3550ft per second giving 5 shot groups around .53in
Velocity is up around 250ft per second on what this rifle fired with a standard chamber. The load was worked up slowly using data obtained from the parent case and the new Ackley chamber pretty much duplicating velocity from the
.257 weatherby. Loads were run through a ballistics/ load developement program to keep pressures down to the same SAAMI levels as the parent case.
|
Threaded Mode
