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25-06 and IMR 4350

I load my 25-06 with 115 B. Tips over 51 grains of IMR 4350. They shoot 1/2 inch groups at 100 yards with no signs of pressure.
This load was developed at temps of 50 to 60 degrees.
I am going to be Antelope hunting this August and the temps could be 100 degrees or more. Does anyone think that the high temps will result in over pressure with this load?
 
7828 with Speer 120 gr BT #1410 Shoots one hole out of two different rifles. IMR 4350 and Swift 110 Scirocco gr does the same. H 4831 and Berger 110 gr (discontinued) did the same. One is Remington 700 and the other is Sako with Shilen barrel. The Shilen barrel pressurses out about a half grain short of book max.
 
The temperature surges I have experience have all been with ball powders in the 90's temperatures. That does not mean that you can't experience them also with extruded powder especially if you are pushing a maximum charge at those extreme temperatures.

You can minimize the effect by keeping cartridges out of direct sunlight in the field and not leaving them in an overheated vehicle. Other than that, I have no clue since I never hunted in 100+ degree weather.
 
7828 with Speer 120 gr BT #1410 Shoots one hole out of two different rifles. IMR 4350 and Swift 110 Scirocco gr does the same. H 4831 and Berger 110 gr (discontinued) did the same. One is Remington 700 and the other is Sako with Shilen barrel. The Shilen barrel pressurses out about a half grain short of book max.
You should take it to a benchrest match
Wayne
 

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