Found my load.

[kobraken]

Ok guys here's an update.
Browning Xbolt extreme long range max. 300 WM
Berger 215 grn hybrid
Federal brass
Federal 215 primers
3.600–. Magazine length
H1000 77 gr
Shot with LabRadar
3 shot group 2940 FPS
ES is 2 SD is 1.1
Group size Can be covered with a bottle cap . I'm still not comfortable with this new trigger, but I think I found my load!!!!
BTW—I shot the group three with the same results. I didn't think this was possible!!

 

[wildcat455]

Happy you found it!

 

[Deleted member 107796]

Excellent load and good job dialing it in.

 

[Rick Richard]

I think you are there, but for the heck of it you might play with seating depth to see if you can squeeze the group. Just an idea if you have not tried it.

 

[kobraken]

Shorter? Actually started out longer , we measured the chamber and started out 5 thousand off the lands, but couldn't get it in the magazine and as we got shorter the groups got smaller. At the same time powder was going up. We also tester Reloader 26 and it constantly lagged behind the H1000 and it's speeds stayed at about 10 FPS spread, and groups were larger.
On a side note—- I bought some factory Berger ammo. It has chronoed within 5 FPS of advertised speed, at 3.60 oal, and we pulled a bullet and weighed a powder charge of 76.4 grns.

 

[Rick Richard]

Just an idea, but go shorter without changing the powder load and see what it does. I really like using the Berger recommend seating depth method. Like I said, 'just an idea'. Good luck!

 

[kobraken]

I'll give it a try. Scared to touch anything though. Never had a load this consistent.
ALSO—-
We weighed the bullets before we loaded and Berger quality control was unbelievable. Had a 4 decimal place scale and there was less than .003 different in 20 bullets. Hornady could learn a few things there.

 

[wildcat455]

Don't be scared. You already know how to get what you got now. Fiddle with the jump only and if it cuts your group size in half, you can be scared to touch it all over again... LOL!! If it doesn't work out, go back to what you got now.

 

[kobraken]

My brother does my loading and says if we mess with it he will requires a live chicken to satisfy the voodoo requirements. I think he just wants to make gumbo.

 

[T3ninja]

Best I could get mine to shoot with berger and h1000 was about 4 moa... still working on it

Thought I had something good with Re-26 but groups fell apart badly at distance.

 

[kobraken]

Yeah. Same here. Reloader wouldn't go the distance.

 

[BoomWop]

Shoot at least 4 5 shot groups at distance with the chronograph to validate.

 

[skipglo]

Ok guys here's an update.
Browning Xbolt extreme long range max. 300 WM
Berger 215 grn hybrid
Federal brass
Federal 215 primers
3.600–. Magazine length
H1000 77 gr
Shot with LabRadar
3 shot group 2940 FPS
ES is 2 SD is 1.1
Group size Can be covered with a bottle cap . I'm still not comfortable with this new trigger, but I think I found my load!!!!
BTW—I shot the group three with the same results. I didn't think this was possible!!

EXCELLENT... THANKS for sharing!

 

[hunter0528]

Ok guys here's an update.
Browning Xbolt extreme long range max. 300 WM
Berger 215 grn hybrid
Federal brass
Federal 215 primers
3.600–. Magazine length
H1000 77 gr
Shot with LabRadar
3 shot group 2940 FPS
ES is 2 SD is 1.1
Group size Can be covered with a bottle cap . I'm still not comfortable with this new trigger, but I think I found my load!!!!
BTW—I shot the group three with the same results. I didn't think this was possible!!

Try using Match grade or Bench rest grade Primers. They will provide a more consistent ignition