After waiting months on end for parts, finally got to finish my lightweight hunter this month, and took her out for a spin.
Powder node is exactly where my heavy target build is at, so 38.8/38.9gn of H4350 makes a good job of shooting 139 OTM ammo.
My SHV 30oz scope is temporary, as I have a 20.5oz NXS compact 2.5-10x42 Mil-R on backorder with Hirsch precision.
Once the new scope in, it should bring weight down to 8lbs 12oz.
About 5-6oz heavier than I was aiming for, but I really wanted a mini chassis in my manners stock for a solid foundation which weighted things down a bit.
Today was a preliminary powder tune test at 100M, but so far so good, my 38.8gn load with 20 thou jump off the jam seems promising.
Especially considering that the 38.6 and 39.0 are also sub 1/2 moa, have very little velocity increments between each other, and have the same POI.
Will do one last test with 38.8gn involving 5 shot groups at 200M, and if it passes my 1/2-5/8 moa objective testing is done and over with.
I won't get into bullet depth seating tune, as this is a hunter and 1/2-5/8 moa was the objective off the start, I won't burn components and barrel up doing some tuning beyond the objective.
iBi went tight neck chamber once again, requiring me to turn necks or having sub optimal accuracy.
At 38.8gn of H4350, CCI 450, and 139 OTM, my velocity sits at 2630FPS, which I find respectable for a 22'' barrel.
In my ballistic app, it gives me confidence to hunt coyotes with some nice energy down range.
My spot for coyotes goes to 600M, which I have more than enough steam to cover.
Right now, I will start training in sitting/kneeling positions for offhand shooting and get this rifle off the bench.
This may be off topic, but if someone has a good article to share on solid sitting positions I would like to get some reading done (I did start searching and reading some on my own too).
Here are a few pics, thanks for reading!
Powder node is exactly where my heavy target build is at, so 38.8/38.9gn of H4350 makes a good job of shooting 139 OTM ammo.
My SHV 30oz scope is temporary, as I have a 20.5oz NXS compact 2.5-10x42 Mil-R on backorder with Hirsch precision.
Once the new scope in, it should bring weight down to 8lbs 12oz.
About 5-6oz heavier than I was aiming for, but I really wanted a mini chassis in my manners stock for a solid foundation which weighted things down a bit.
Today was a preliminary powder tune test at 100M, but so far so good, my 38.8gn load with 20 thou jump off the jam seems promising.
Especially considering that the 38.6 and 39.0 are also sub 1/2 moa, have very little velocity increments between each other, and have the same POI.
Will do one last test with 38.8gn involving 5 shot groups at 200M, and if it passes my 1/2-5/8 moa objective testing is done and over with.
I won't get into bullet depth seating tune, as this is a hunter and 1/2-5/8 moa was the objective off the start, I won't burn components and barrel up doing some tuning beyond the objective.
iBi went tight neck chamber once again, requiring me to turn necks or having sub optimal accuracy.
At 38.8gn of H4350, CCI 450, and 139 OTM, my velocity sits at 2630FPS, which I find respectable for a 22'' barrel.
In my ballistic app, it gives me confidence to hunt coyotes with some nice energy down range.
My spot for coyotes goes to 600M, which I have more than enough steam to cover.
Right now, I will start training in sitting/kneeling positions for offhand shooting and get this rifle off the bench.
This may be off topic, but if someone has a good article to share on solid sitting positions I would like to get some reading done (I did start searching and reading some on my own too).
Here are a few pics, thanks for reading!
