Just finished my 7mm PRC

Awesome! I spun my barrel on a couple days ago, hoping to shoot it next week! Mines a 18" benchmark with a suppressor hanging off the end
IMG_1424.jpeg
 
Update.
In the end she doesn't like the heavies. Tried a lot of diferent powder/bullet combos and can't get it to group with anything heavy. Tried 175 ELDX, 180 ELDM, 180 Hybrids, 180 VLD and nothing seems to group consistently under 1.5 MOA.
Found an awesome load with 154 Hornady InterBonds @3208fps and running the numbers, it's not a bad load out to 900 yds. It's not like I'm planning on hunting that far either with that rifle anyway.
 
Update.
In the end she doesn't like the heavies. Tried a lot of diferent powder/bullet combos and can't get it to group with anything heavy. Tried 175 ELDX, 180 ELDM, 180 Hybrids, 180 VLD and nothing seems to group consistently under 1.5 MOA.
Found an awesome load with 154 Hornady InterBonds @3208fps and running the numbers, it's not a bad load out to 900 yds. It's not like I'm planning on hunting that far either with that rifle anyway.
I experienced the same with my 7 LRM. I tried Retumbo, H1000, N570, RL26 with Berger 180's, Cauteurico 183s & 190s, and 185 RDFs -- none of them grouped satisfactorily. Dropped down to Nosler ABLR 168s and it was still a struggle to hit 1moa. Recently tried H4831 & 185RDFs. Details here : https://www.longrangehunting.com/threads/working-up-1st-7prc-load-hmmm.342421/post-2939069
I'll post pics of my next outing.
Edit to add, I see you tried H4831.
 
I experienced the same with my 7 LRM. I tried Retumbo, H1000, N570, RL26 with Berger 180's, Cauteurico 183s & 190s, and 185 RDFs -- none of them grouped satisfactorily. Dropped down to Nosler ABLR 168s and it was still a struggle to hit 1moa. Recently tried H4831 & 185RDFs. Details here : https://www.longrangehunting.com/threads/working-up-1st-7prc-load-hmmm.342421/post-2939069
I'll post pics of my next outing.
Edit to add, I see you tried H4831.
My current load is as follows:
71gr H-1000
CCI250
Hornady case
154gr Hornady Interbond
BTOL: 2.602"
It consistently shoots 0.5-0.6 moa groups tried it on steel out to 900yds with no real problems.
 
I found my sweet spot with the 180 ELDM by working with seating depth. I think I ended up close to the Hornady factory load seating depth.
 
My current load is as follows:
71gr H-1000
CCI250
Hornady case
154gr Hornady Interbond
BTOL: 2.602"
It consistently shoots 0.5-0.6 moa groups tried it on steel out to 900yds with no real problems.
What are you pushing on those? I'd expect around 3200.

edit : scrolled up and saw you already posted velocity.
 
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