300 WM: Barnes 175 gr LRX / RL 26

Flatbow

Well-Known Member
Joined
Mar 3, 2015
Messages
270
Location
Rarhdrum ID
I just worked up a new load for my 6.5 cm with LRX 127 grain over RL16. Most accurate load ever with that riffle!
Attached is a five shot group.
Ave. Fps was 2934 out of a 22" barrel with an SD of 9 and ES of 17.
 

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moose297

New Member
Joined
Aug 24, 2020
Messages
1
Location
lakewood wa
I found the velocities quite amazing going from H1000 to RL22 with the 175 LRX. I didn't test for the difference in velocities as I worked up as you did though. Have found similar results with a RUM. I think the big cases are less effected by the smaller increases so I usually do .5 gr increments until pressure.

77 gr H1000 2907 FPS. Crunching powder and had to half seat and then set on the washing machine to settle the powder (Ruger factory box 3.34" COAL).
75.5 gr RL22 3150 FPS.

Ahh...if only Alliant was as temp stable.
my loader tryed 4 different powders etc...we found also rl-22 was a good combo for my 300 win mag..im getting 3275 1000ft..75degrees..with 76.6 gr rl22..note prohunter 28in barrel with a 2in brake added..and my groups are better....lrx shooting better groups at the higher velocity...i will ask my loader if we can push it up to 3300..using NEW 300 win brass...if so ,,,check the grouping...and the cases....
 

charliehorse27

Well-Known Member
Joined
May 6, 2019
Messages
377
Location
Post Falls, Idaho
Ironically, my gunsmith says RL-26 is only good for a dumpster fire. My current load is using H1000 and 212 Eld-X’s, but shortly I’m going to play around with this setup again.
 

Double Dropper

Well-Known Member
Joined
Nov 2, 2015
Messages
328
Location
Beaver County, Alberta
Tried H-1000 over several loadings in my 300 Win Mag. velocities were ok and accuracy was ho hum. I know not very scientific. No loading jumped out at me despite several attempts with the 212 ELDX and the Berger 190 and 215. Its only when I went to RL-26 did the grouping tighten up.
 
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