Originally Posted by Gaschekt
Similar situation to this happened to me with standard albeit maximum data from a mid 90's Hornady manual and the 30-06 with 165gr Interlocks and Winchester 760 powder. The max load was fine on cold days and during cold weather deer hunting, but would blow primers at the range on a 90° day. The load must have been developed without considering the effects of summer Texas temperatures.

I wouldn't kick myself too hard over this. Stuff happens and lessons are learned. I also have a keg of Military Surplus IMR-4895 that's the fastest lot I've ever seen. I have to be very very careful. Normal data doesn't kosh too well on the upper end with this stuff. I now use it primarily for reduced loads and cast lead bullets.

😁 Hornady manual early 90’s loading 25.06, 117 grain Hornady and RL22, max load listed was 56.5 grains got to 54.5 and couldn’t lift the bolt then had to have a smithy get it open. Never have trusted that manual or any other Hornady manual since.


Swifty