The 7mm PRC is Here

[mossyoak52]

The design issue creates the handloading issue. Handloading doesn't create reamer issues. People using factory ammo would never know or care.

We wi agree to disagree if it was a design issue then factory ammo would have the same problem meaning the design would cause issues no matter if it's a factory round or a handload

 

[WeiserBucks]

Never had a gunsmith mess up a chamber becausehe didn't take his time cutting the chamber ,used a dull reamer cut it to fast etc ?? I suppose that's the manufacrures fault also
Have a good day.

Nope, never had a gunsmith mess up a chamber. If your gunsmith is boning your chambers for any reason, you need a new gunsmith.

 

[mossyoak52]

T
pe, never had a gunsmith mess up a chamber. If your gunsmith is boning your chambers for any reason, you need a new gunsmith.
Niethier have I but it doesn't mean it doesn't happen

 

[BRTreedogs]

Less wind drift, less recoil = more hits, more fun. At least thats wtf I choose a 7 over my 30s at times.

Honestly man I could care less, something for everyone.
I'm just throwing shade on the real housewives of .284 because I knew it would wad up pantys.

 

[wind gypsy]

First thing I looked at to see if they learned from the previous mistakes. Nope!

I looked at this a little more. The PRC saami case and chamber dimensions have the same clearance at the web as RUM, Nosler, and SAUM saami specs. I didn't look at any differences in acceptable tolerance though.

I'm sure I could go back and read it from Alex wheeler but it seems like the issue is PRC brass being closer to max dimensions to start.

 

[B23]

It's kind of funny, the 7mm Blaser mag, which is very similar in design and case size to this new 7 PRC, has been around for years and hardly anyone but a very few of us knew what a 7mm Blaser mag was or had ever heard of one let alone had one built.

For a medium to large-ish sized 7mm this new 7PRC Hornady has come up with should be a winner. Case capacity very near a 7 Rem mag and 7 Weatherby mag but, IMO, a better case design and with no belted case.

A 270 version shooting the 170 Berger somewhere around 3100 would be pretty cool.

My 7mm Blaser mag is built on a LA Rem 700 with a 26in Hart and I'm shooting the 180 Hunting VLD 3100 with 68.5gr RL26

I'm a big 30 cal fan but when you run the numbers on a 270 170 Berger at 3100 or a 7mm 180 Berger at 3050-3100 is pretty impressive and I think you're going to have to burn a lot more powder and shoot a much heavier bullet to beat them.

 

[eLightfoot]

Anyone know when hornady is officially releasing? How were these saami prints acquired?

 

[IrkedCitizen]

The prints are on saami.org

 

[wind gypsy]

It's kind of funny, the 7mm Blaser mag, which is very similar in design and case size to this new 7 PRC, has been around for years and hardly anyone but a very few of us knew what a 7mm Blaser mag was or had ever heard of one let alone had one built.

For a medium to large-ish sized 7mm this new 7PRC Hornady has come up with should be a winner. Case capacity very near a 7 Rem mag and 7 Weatherby mag but, IMO, a better case design and with no belted case.

A 270 version shooting the 170 Berger somewhere around 3100 would be pretty cool.

My 7mm Blaser mag is built on a LA Rem 700 with a 26in Hart and I'm shooting the 180 Hunting VLD 3100 with 68.5gr RL26

I'm a big 30 cal fan but when you run the numbers on a 270 170 Berger at 3100 or a 7mm 180 Berger at 3050-3100 is pretty impressive and I think you're going to have to burn a lot more powder and shoot a much heavier bullet to beat them.

Couldn't agree more. Did a quick compare, it does look crazy close to a 7mm blaser in dimensions. Blaser is wider at the base with more taper to being just a hair narrower at the shoulder. Blaser shoulder is about 0.044" further forward and neck is about 0.012" longer.

Soo all else equal, blaser would have a hair more case capacity and may be a hair more prone to feeding/extracting better. In the real world differences between different brass manufacturers of the same cartridge may be a bigger difference than blazer vs prc.

Since I learned about the blaser mag its been my favorite case design for a LR hunting 7. Guess that means i should like what they did with the new PRC!

 

[B23]

With the 7 Blaser having some case taper and a fairly long neck I always thought that case would be a good candidate to Ackley Improve. Improving it would not only give it a decent size boost in performance but it would still work well in a mid size action too.

This new 7 PRC doesn't appear to have as much case taper as the 7 Blaser so AI'ing it probably wouldn't gain as much. Norma makes the 7 Blaser brass and my sized cases hold right at 84gr H2O, a little more than that fired and unsized, so I'm guesstimating the new Hornady 7 PRC to be in the 80-82gr H2O case capacity range.

Not to hijack the thread but it's really unfortunate the 7mm Blaser mag didn't get one of the big companies to get behind it because it's a really well designed case for that mid range magnum size.

 

[DudeBro]

We wi agree to disagree if it was a design issue then factory ammo would have the same problem meaning the design would cause issues no matter if it's a factory round or a handload

The issue is not the first firing. Both factory and virgin brass handloads are fine. It’s follow-on firings with the brass that become problematic because the brass doesn’t size down enough above the web. That’s why factory will always be fine (it’s never resized) and handloads can become problematic after multiple firings.

 

[mossyoak52]

Y
The issue is not the first firing. Both factory and virgin brass handloads are fine. It’s follow-on firings with the brass that become problematic because the brass doesn’t size down enough above the web. That’s why factory will always be fine (it’s never resized) and handloads can become problematic after multiple firings.

I'm aware of what the issue is hence why my 2 prc (300& 6.5) I use factory rounds everything else I shoot is handloads not worth the hassle of reaming it out and custom dies for the amount I shoot either.
both will be sold shortly my 280 ai will do everything They will do with less powder and better barrel life & I have way to many guns
All I was trying to point out was gun manufacturers and saami do not consider handloaders or the issue mentioned when designing a cartridge they base it off. Function with factory ammo
my opinion is because it functions fine with factory ammo it's not a design problem with the cartridge it's more a design issue with die manufacturer not Hornady or saami

 

[amassi]

but they had nothing to do with the actual chambering just because they designed it dsnt mean those who actually cut the chambers went by exact specs

That's exactly what it means, chambers are cut to the mfg spec. Hornady did not spec the reamer appropriately. It's not just a couple mfgs whose prc chambers suck, it's most if not all.

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[amassi]

7mm 180g bullets are already hard enough to get ahold of. Now the 6.5 crowd will be graduating to the 7PRC once the marketing machine is turned on. Wonderful.

This could be why the 180 eld-m has been scarce, hornady could have held some back for whenever they release this cartridge?

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[SouthPaw]

This could be why the 180 eld-m has been scarce, hornady could have held some back for whenever they release this cartridge?

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Makes perfect sense.

 

[B23]

That's exactly what it means, chambers are cut to the mfg spec. Hornady did not spec the reamer appropriately. It's not just a couple mfgs whose prc chambers suck, it's most if not all.

But is it a chamber spec issue or is it a FL die spec issue? I tend to believe it's more of an issue with how they spec'd the FL dies. It's kind of one of those chicken or the egg debates.

Regardless of who you choose to blame, the two don't seem to match one another like they should which causes the clickers.

 

[BBob]

I looked at this a little more. The PRC saami case and chamber dimensions have the same clearance at the web as RUM, Nosler, and SAUM saami specs. I didn't look at any differences in acceptable tolerance though.

I'm sure I could go back and read it from Alex wheeler but it seems like the issue is PRC brass being closer to max dimensions to start.

Yes, we'll have to wait and see what they actually do with brass dimensions.

 

[B23]

This could be why the 180 eld-m has been scarce, hornady could have held some back for whenever they release this cartridge?

Maybe, but those 180 ELD-M's have been very hard to find for a long time and I've been looking. I was able to get a couple boxes of them from someone that had a few to spare. The BC, if actual, of those things is pretty impressive for a 180gr bullet. Probably why they're so scarce.

 

[amassi]

But is it a chamber spec issue or is it a FL die spec issue? I tend to believe it's more of an issue with how they spec'd the FL dies. It's kind of one of those chicken or the egg debates.

Regardless of who you choose to blame, the two don't seem to match one another like they should which causes the clickers.

Chamber
Reaming the chamber makes the dies usable and fixes the issue. Reaming the dies doesn't help anything

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[amassi]

Maybe, but those 180 ELD-M's have been very hard to find for a long time and I've been looking. I was able to get a couple boxes of them from someone that had a few to spare. The BC, if actual, of those things is pretty impressive for a 180gr bullet. Probably why they're so scarce.

Agreed but I'm starting to see plenty of hornady 6, 6.5 and 30 cal eld-m in stock even on shelves of my lgs.

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