7mm PRC

Mumzergadol · Apr 5, 2025

This is

180 eldm
rl26. 66.5gr
Norma brass 2x
215m primer
Gives 3015 and SD 7

Was actually fussy about seating depth. Shot well at. 005 and .050 and nowhere else.

Bergers 184 worked across a broad range of powder charges. This was 66.5 and 66.8

Mumzergadol · Apr 6, 2025

As a follow up question - who has found an acceptable powder in LRT, Magnum, Retumbo, etc. my bbl doesnt love h1000, and it could be 2 years before i find another keg of rl26 (which i burn in my 6.5prc as well)

anyone?

lash · Apr 6, 2025

Mumzergadol said:
As a follow up question - who has found an acceptable powder in LRT, Magnum, Retumbo, etc. my bbl doesnt love h1000, and it could be 2 years before i find another keg of rl26 (which i burn in my 6.5prc as well)

anyone?

What bullet weight? I’m using Retumbo for Berger 190s and it is getting near 3000 fps in a 30” barrel. SDs are a bit higher than I prefer, but results on target have been very acceptable.

Mumzergadol · Apr 6, 2025

either 180 hybrids or 184s. Might try the 190s.
26" barrell

Gtscotty · Apr 6, 2025

Mumzergadol said:
As a follow up question - who has found an acceptable powder in LRT, Magnum, Retumbo, etc. my bbl doesnt love h1000, and it could be 2 years before i find another keg of rl26 (which i burn in my 6.5prc as well)

anyone?

I've had good luck with Ramshot Grand, velocities up there with RL-26, temp stable and available. Staball HD was ok, but didn't really live up to the billing for me, unlike Grand.

lash · Apr 6, 2025

Gtscotty said:
I've had good luck with Ramshot Grand, velocities up there with RL-26, temp stable and available. Staball HD was ok, but didn't really live up to the billing for me, unlike Grand.

I’ve heard that about Ramshot Grand. Not tried it.

Renomd · 2025-05-08T21:50:34-0400

H&H Precision Outdoors said:
Finally had time over the last 2 weeks to finish load development on my custom 7 PRC. Here is my load I worked up in my rifle:

Peterson Brass (2.2630”) trimmed (wet tumbled, & annealed)
(3) thousandth neck tension
Federal 215m Match Primer
(66.20g) H1000
Berger 190g LRHT
AVG group size: (.25”)
AVG muzzle velocity: 2970fps

(Chronograph data was taken today for the 4th confirmation group)

what barrel length are you running with those speeds and charge? thank you

H&H Precision Outdoors · 2025-05-08T22:21:07-0400

Renomd said:
what barrel length are you running with those speeds and charge? thank you

26” Bartlein Carbon Wrapped, 1:8 Twist, M24 Contour. APA Gen III little bastard brake as well.

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