compujas
Member
Finally managed to get to the range to shoot my first string of reloads for my load development. I'm using fired Remington UMC brass, FL sized, 168gr SMK, IMR 4064, WLR primers, 2.800" COAL. These were fired from a Marlin XS7 on a Lead Sled Plus to eliminate my sub-par rifle skills (for the moment). I'm pretty excited with the improved accuracy vs factory Remington UMC ammo. Obviously though this ammo drifts more than the UMC, so I'll have to adjust my scope once I find a good load. My plan now is to try 37.5-39.5 grains by .5gr increments to start walking it in and find the sweet spot.
The top left is 38.0 grains of powder.
The top right is 39.0 grains.
The bottom left is 40.0 grains.
The bottom right is 41.0 grains.
The center is Remington UMC 150gr.
If anyone has any comments or wisdom to share to steer me in a better direction would be much appreciated since I'm new to this.
Edit: Forgot to mention, on the 41.0 grain loads I started seeing some slight primer flattening around the edges.
The top left is 38.0 grains of powder.
The top right is 39.0 grains.
The bottom left is 40.0 grains.
The bottom right is 41.0 grains.
The center is Remington UMC 150gr.
If anyone has any comments or wisdom to share to steer me in a better direction would be much appreciated since I'm new to this.
Edit: Forgot to mention, on the 41.0 grain loads I started seeing some slight primer flattening around the edges.