Little load dev with Ramshot hunter and 143gr ELD-X, Hornady brass and CCI200's in my browning X-bolt hells canyon LR.
.020 off the lands.
Seems to love 42.5
Ramshot Hunter ELDX 42.5gr Best Group .585 MOA
2768.75
2763.06
2765.58
2768.75
2768.75
Std Dev 2.6
Average 2767.0
The big surprise was Hornady American Gunner 140gr throwing out a .438 MOA group despite a 23 SD. Not bad for 60ish cents a round factory ammo.
9/1/2018 70F
Hornady American Gunner 140gr
2692.38
2649.37
2700.79
2706.23
2699.59
Std Dev 23.1
Average 2689.7
Last edited by B52U; 09-01-18 at 19:49.
Some more data to contribute. Shot the 24" McGowen at 1k and officially joined the 1000 yard gas gun club. It was windy, 10-15 mph and gusty, but still managed to make 40% hits at a 0.8 MOA Target at 1k.
Load data was very simple, 123 Noslers over 39.0 gr Varget, Hornady brass, and CCI-200 primer. OAL was around 2.750, couldn't load longer as there wasn't enough bullet in the case. Velocity based on dope was in the 2850-2875 range. Brass and primers looked perfect, and gun was 100% reliable. Held pretty decent vertical at 1k.
May end up bumping the charge a bit more to 39.2-39.4 but overall very pleased.
We had some vertical stringing going on Sunday with the 143 gr eld and 40.8 gr of H4350. Still working out a load.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
The strange thing was when we did the ladder test with 3 rounds each, none of the loads gave vertical stringing. And this load did it with consistently. Very annoying.
PB
"Air Force / Policeman / Fireman / Man of God / Friend of mine / R.I.P. Steve Lamy"
Well, I'm finding 143gr ELDX is really a challenge for load development in the X-bolt. I think I'm finally making some headway with seating depth testing and what I'm finding is these seem to like jump.
This makes sense why precision hunter factory ammo seems to turn out consistent sub-moa results with a COAL around SAAMI length. I wish I had started there instead of .020 off the lands because the sweet spot in my gun appears to be around .055 jump to the lands.
Aren't the ELD variants hybrid? Not that they couldn't run better with a jump.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
You know the nuances of reloading are astounding. I pointed out to Big D this Thursday that our 178 ELDS in 308 were good not great. He noted its interesting that Hornady makes factory 169 or 16x ( can’t remember hornadys grain weight) but not the heavy 178 bullets.
The little things make a big difference
Bookmarks