• If you are being asked to change your password, and unsure how to do it, follow these instructions. Click here

7mm PRC

Has anyone worked up any loads with the 180 Hybrid with H1000, LRT, or Retumbo? I am planning to play around with H1000 and shooting charge weights of 64.6, 65.0, 65.4, 65.8, and 66 on Sunday. We're supposed to get another artic blast on Monday. I would love to get the 180 Hybrid running at 2915 fps from my 22" Bergara.
 
See post 35
Has anyone worked up any loads with the 180 Hybrid with H1000, LRT, or Retumbo? I am planning to play around with H1000 and shooting charge weights of 64.6, 65.0, 65.4, 65.8, and 66 on Sunday. We're supposed to get another artic blast on Monday. I would love to get the 180 Hybrid running at 2915 fps from my 22" Bergara.
 
That sounds like a great load. I was contemplating getting some N560. I have N165, but it just isn't the powpow for the 7PRC. Be sure to post up the 800y results.
For reference:
I ran some N165 thru my 22" proof barrel (~130rnds) ,
175gr ALBRs seated to 3.2600" COAL, or 2.5855" Ogive
Fed 215 primers
Hornady once-fired brass o_O
Temp 52 F

65 gr - 2794 fps
65.3 - 2794
65.6 - 2810
65.9 - 2816
66.2 - 2817
66.5 - 2840
66.7 - 2847 (Hornady book max.)

No obvious pressure signs.

The group was 2MOA mainly horizontal, but I was in a rush shooting off a bag and towel because it was starting to rain. The last two round charges settled in closely. I had just changed the neck bushing in my sizing die from .312 to .310, giving me aabout 0.004" neck grip. Nothing like throwing in another variable to make things interdasting 😐. Maybe a bit much, but the .312 felt really light when seating. That said, I ran ALBRs, seated out to 3.300" with Staball HD and got 5-shot 3/4" group with the .312 bushing.
 
Top