Not mine, I pilfered it elsewhere.
My loads: The US869 has shown the best groups and lack of psi. 26 Nosler 3/9/14
Headspace guage D .400 Go=2.239 Actual is 4.241
4.248" after 1st firing No=2.245 Actual is 4.252
4.245" after FL Sizing
Per Drawing Trim 2.590"
Factory 129gr ABLR 20 rounds supplied Advertized 3400fps
20 rounds fired: ALL 20 rounds were fired using the Magnetospeed
Max FPS 3351fps
Avg FPS 3317fps
Min FPS 3291fps
ES 60
SD 15
Results in grouping were poor, guessing the Magnetospeed was the majority of this.
Suggested Loads Supplied by ML on 3-11-14
140gr Loads, 3,300fps to 3,350fps with 26" barrel, 58,000 to 59,000 psi
89gr US869 WLRM Primer 140gr Nosler CC 3.340" OAL
80gr Retumbo Fed 215 Primer 140gr Nosler CC 3.340" OAL
129gr and 130gr, 3,350fps to 3,400fps with same psi as 140gr loads.
74gr H4831SC Fed 215 Primer 130gr AB 3.320" OAL
82gr Retumbo WLRM Primer 129gr ABLR 3.340" OAL
82gr Magnum WLRM Primer 129gr ABLR 3.340" OAL
100gr bullet, not specified
88gr Retumbo NA 100gr bullet??? NA
Bullet measurment with 5-26 Hornady bullet guage.
140 Berger Hybrid 1.722"
123gr Sierra HPBT 1.795" 1.793"
142gr Sierra HPBT 1.712"
OAL OGIVE Seating depth .015" off lands.
140 Berger Hybrid 3.497" 3.816" 3.801"
123gr Sierra HPBT 3.408" 3.820" 3.805"
142gr Sierra HPBT 3.391" 3.798" 3.783"
Actual 1st Reloads
140gr Berger Hybrid 3.8" OGIVE .015 off lands
F215M Primer
9 at 79gr Retumbo 3314fps avg HOT HOT
10 at 79.5gr Retumbo HOT HOT
3/14/14
140gr Berger Hybrid 3.8" OGIVE
F215M Primer
78gr Retumbo 3278fps avg Still Hot
78.5gr Retumbo 3292fps avg HOT
3/15/14
140gr Berger Hybrid 3.8" OGIVE
F215M Primer
75gr H1000 3202fps avg
75.5gr H1000 3223fps avg
76gr H1000 3237fps avg
Below is from ML on 3-18-14.
140gr Custom Comp – 74.0gr/H1000/Fed 215/3.320” OAL – 3,132 fps (starting load)
140gr Custom Comp – 76.5gr/H1000/Fed 215/3.320” OAL – 3,234 fps (MAX load)
With US869, I was running 89.0 grains in front of a WLRM, and getting 3,375 fps and shooting ½” groups all day long. I zeroed at 300yds, which gave me some ridiculous drops out to 1,000yds..!
3/23/14
140 Berger Hybrid F215M, 7RUM Case 3.8" Ogive
88gr US869 3 shot avg 3232fps avg
88.5gr US869 3 shot avg ***Retest 3233fps avg
89gr US869 3 shot avg 3264fps