Barnes shows load data for its 127 gr. LRX bullet in the 6.5 PRC, with a maximum charge of 55.0 gr of RL26, at a MV of 3107 fps. from a 24" test barrel.
I have worked up to their max charge of 55 gr., and get great accuracy, but the MV is only 2960 fps. I get much higher velocities with Magpro powder, but not the accuracy.
Is the Barnes data just way too conservative? Anybody else out there have load data for this bullet and powder?

Different rifles, chambers, etc cause different velocities with the same load.

I'm running a different powder but pushed them over 3250 and backed them off to 3150. Accuracy was there all along.

An update- Been tweaking with seating depth and load volumes, have found a very accurate load with the Barnes 127 LRX and RL26. 57.0 gr. is giving me a MV of 3100 fps, and .5 MOA accuracy, with no pressure signs whatsoever. It is probably still a fairly mild load, but at the MV I am seeing, I am perfectly happy with it! For what it's worth- my best accuracy came with a seating depth of .15 off the lands. I started at .05, and worked deeper until the accuracy came around.
I now have two handloads for my 6.5 PRC, the 127 gr. LRX for elk and tougher game, and a Berger 140 VLD Hunting bullet load for everything else. Done with load testing for now, I need to save my supplies of RL26 and Magpro for future use!

Some data to add.

22" bbl .140 Freebore
Lapua Brass
BR2 Primers
RL26 @ 55gr
127LRX @ 2.280 BTO

Avg Velocity = 3120fps
ES - 30fps
SD - 9fps

100yd group - 0.431"

I tried 4 diff primers:
GM215M
WLRP*
CCI200
BR2**

*Best groups were with WLRP and BR2 (BR2 performed best)
**Best ES & SD - BR2

No pressure signs.

Tag