Ran up to a spot where I like to do a little shooting to sight in the new Minox, and test/verify a few loads. We have an old family friend that has lived up in this spot for as long as I can remember, and he lets me do load development there. Here's a pic from his driveway:
I'm still trying to finalize a load with the 105 Amax in the .243. I had a couple loads to try, and wanted to shoot a 'pressure ladder' with Ramshot Magnum (to see if last time was an anomoly.... well, it was not). First up was the load of 41 grains RE-17, COAL 2.830", I had established this as a max load in the rifle.... shot two three-shot groups.... not impressed, they're the two you see on the right... 'bout 1.3-1.5". Went to the truck and bumped them back .010" to 2.820"... you can see that group to the left... goes about .72". Shot another one that went .71".... and the average velocity was 3058... so we'll call that load good.
On to the "Pressure Ladder".... this is the way I establish what is max in my rifle. QL max for Ramshot Magnum and a 105 Amax is 51 grains. So, I load 1 round at 48, 49, 50, 51, 51.5, 52 grains.... then seat them to max COAL and see what happens. Well.... you can see the 6-shot group goes .80"... with shots 2-6 going .510"... and shots 4-6 (51, 51.5, 52 grains) went .18". The last the shots the velocities were: 3078, 3106, and 3129. I like when powders act like this.... this load is definately worth exploring further.
I'm still trying to finalize a load with the 105 Amax in the .243. I had a couple loads to try, and wanted to shoot a 'pressure ladder' with Ramshot Magnum (to see if last time was an anomoly.... well, it was not). First up was the load of 41 grains RE-17, COAL 2.830", I had established this as a max load in the rifle.... shot two three-shot groups.... not impressed, they're the two you see on the right... 'bout 1.3-1.5". Went to the truck and bumped them back .010" to 2.820"... you can see that group to the left... goes about .72". Shot another one that went .71".... and the average velocity was 3058... so we'll call that load good.
On to the "Pressure Ladder".... this is the way I establish what is max in my rifle. QL max for Ramshot Magnum and a 105 Amax is 51 grains. So, I load 1 round at 48, 49, 50, 51, 51.5, 52 grains.... then seat them to max COAL and see what happens. Well.... you can see the 6-shot group goes .80"... with shots 2-6 going .510"... and shots 4-6 (51, 51.5, 52 grains) went .18". The last the shots the velocities were: 3078, 3106, and 3129. I like when powders act like this.... this load is definately worth exploring further.