Interesting point.
I haven’t loaded that light, but I have killed a deer and a couple antelope with mine using the 180gr Berger hybrid. 18” barrel, 2620 MV, 220-400 yards to impact, .284 in, golf ball size out. One Antelope at 260yd was facing me, bullet did not exit. Planning to continue shooting them.
Yeah, even if the factory 7 PRC MVs are not as high as they started out, the BC makes it a very accurate bullet. And, in their statement, Hornady did say they can no longer get the powder that started the 7 PRC but they ensure the accuracy, which is ultimately more important to some than barrel-burning speed.
In my experience, which consists of only one rifle so far, my Proof Research CF barrel doesn’t have any problems shooting good, consistent 5 shot groups with good components. It’s usually in the 3/8-1/2 moa range and rarely shoots worse than 5/8. I think the manufacturer means a lot with carbon fiber barrels. Also, 180 grain VLD Hunters are a little more consistent than the 175 ELDX in my rifle.
That's a good group if the job is hunting.
I just got my 18 inch barrel 7PRC a month back and have a bunch of 1x fired brass that I wanted to fire form. I was surprised by the results of these loads using 150 gr TTSX. I am not at home to look at my data book but I was getting single digit SD/ES and better than 1MOA with initial load ladder which I used 3 rounds. I still haven't hit pressure signs but I think I am gonna load some where I think I have an accuracy node at around 2900 ft/sec and get back with results using IMR 4350, peterson brass and WLR primers.
At least someone has a gun that will shoot that ammo. I have tried it in 4 different rifles of various caliburs from 300 WSM, 6.5 PrC, 7 PRC and .270 win without finding barrel that will shoot it well, IMO opinion anyways.
Other than cleaning the barrel down to the metal, which is what I have heard about mono copper bullets, I am wondering if it is a Hornady powder problem. For example, Federal 175 gr ELD-X is already closer to the box MV of 3,000 fps.
I get good 3 shot grps with load workup with 150TTSX and IMR 4350, peterson brass with velocity around 2900fps. Going out to shoot more this weekend to confirm.
If you are using Barnes, I got an email from them that basically said go 50, 75, 100, 125, 150 thousand from lands with
I’m having good luck with McGuire Copper Rose Solids 160gr and retumbo. Shooting sub moa at 700 and 1000
www.mcguireballistics.com
Lapua isn’t doing shit right now because of the war in Ukraine. Pick up some ADG or Peterson and go shoot. Both have been great for me
Agreed. Both ADG and Peterson brass will do just as well. Lahpwah is not the only decent name in town any more. Don’t bother with the hornydaddy.
Currently have both in 7 prc. Both are great. I can’t say either is definitively better than the other.
Not same cartridge but we run Retumbo in Wife's 7/300 prc. Does much better than N570.
I did not. Had a ton of N570 leftover from a rifle I sold so gave it a shot. It shot everything accurately I just wanted to use the n570 and gain some velocity. It’s an 18” hunting rifle so I wasn’t planning on getting 2000 rounds out of it
I prefer Peterson. I have had excellent results with it across many calibers.
Have you tried ADG?
I have tried ADG and the brass was harder to work with when resizing. It seems much harder if that makes any sense. I really had to force everything on the press. Also, my dimensions on the Peterson brass seem to be truer. I am able to get almost perfect COAL when loading with it. Sorry I don't have a more scientific answer, but all I can say is use Peterson with confidence. I also shoot a lot of Lapua, but consider Peterson as good or better.
On the ADG train. I’m two firings in and my shoulders haven’t needed to be pushed back.
I have never tested the above noted theory. I always bump mine back .002 to ensure reliability. Any brass should stretch to the size of the chamber, and I would imagine would stay that length for multiple firings, right?
I am used to bumping my shoulders every firing but this ADG brass just isn’t growing 2x firings now. Measuring with mitutoyo calipers and SAC comparator kit so I’m fairly confident my tools are sufficient and I’m not getting bad gouge.
My Peterson brass did not really change much the first 3 firings but the 4th showed 0.004 more length. It is what it is. I will either keep my same bump or decided to adjust the resizing die to minimize working the brass. Not sure if it will affect the performance of the load or not changing it. I might decide to experiment a bit.
Hawkins Hunter M5 DBM and their 3 round Hunter mags work great in mine.
Yeah I have one and have had good luck with the 180g eldm 13ths off touch adg brass retumbo 69.0 g and br2s. 3114 fps. See short for last round of 5 shot groups. I tested a lower load at 30deg from January top left, 1st 3 rds clustered then the next two speed up alot (mid 90 temp) then shot the rest with that last 5rd string back to back, grouping around 0.5 inch
The brass of course. That’s what tells the story. Gauges don’t tell you shit after the barrel is torqued in place and is being used.
FWIW I thought I’d be good at 67.5 no pressure on single shot ladder test. When I went back with 5 rounds I had pressure on 4 of 5. Dropped .5 grains same thing pressure on 3 out of 5. Ended up having to drop 1.5 settling at 65 to get rid of pressure signs on shot strings of 3-5 rounds.
. Thought I’d share the info. Haven’t shot groups yet. Pressure showed at around 3000fps on both powders which is better than I expected with a 22” tube. Also it was hot out 85-90 degrees at 1100 elev. But nothing too bad. Even over 3100 was just a slightly tight bolt lift. Ejector smear and craters were marginal. Hornady match ammo was shooting .4moa at 2850-2900 out of this rifle. I took one of those match180’s apart and it’s got 69.8 grains of something (n570?) not h1000.
