7mm PRC

[Dave Hoback]

Gorgeous scenery! I’m jealous! Makes me miss the high desert of my Arizona.

Oh… nice elk to, LOL!

[Bleeb]

Gorgeous scenery! I’m jealous! Makes me miss the high desert of my Arizona.

Oh… nice elk to, LOL!

Thanks. I love southern Colorado, but it's way too dry there for me.

The shot was from the aspen clump at the top of the hill over my right shoulder.

[Chris_in_Idaho]

Very nice!!

[Chris_in_Idaho]

Does anybody know why there's a 110 Apex Storm XP (or whatever the version is called that comes with the cheapo scope and non accustock) in 7prc but not a regular 110 Storm? If the stainless 110 barreled action in 7prc already exists, and the long action accustock & recoil lug already exist, why in the world doesn't Savage put the action in the stock and sell it? They already make all of the parts...

[Chris_in_Idaho]

Also, can someone with a 110 in 7prc verify for me if it's small or large shank, and whether it has the 9/16 bolt locking lugs like the WSMs?

[Chris_in_Idaho]

Also, can someone with a 110 in 7prc verify for me if it's small or large shank, and whether it has the 9/16 bolt locking lugs like the WSMs?

Anybody...?

[Dave Hoback]

From photos shown in articles, it’s a Small Shank.

https://i.ibb.co/CHLvqJg/4207197-E-90-B9-41-BA-9213-875-BF19-BB2-F0.png (https://ibb.co/HHZY0N6)

.

[deadduck357]

I just bought one and am waiting for it and some ammo to be shipped. I'll be shooting it later his week.
Which one did you get?

Edit: just read your post #35. Congrats

[deadduck357]

Dayum!

[deadduck357]

https://i.ibb.co/gDNpFND/IMG-20231031-160002-01-Copy.jpg (https://ibb.co/jLm2ZmL)
Well that 7PRC did it. Congrats again.

[Robinhood]

Also, can someone with a 110 in 7prc verify for me if it's small or large shank, and whether it has the 9/16 bolt locking lugs like the WSMs?

I think David addressed the Tenon size. But here is some data on the bolt head.

The 7mm PRC is a long action cartridge with a .532 rim. The WSM's and the 9/16" Bolt Head are for short actions and have the .532" diameter rim. The 9/16" bolt head requires a firing pin that is 1/8" longer than the standard firing pin in a short action with the standard 7/16" Bolt head. The standard BH length for a long action is 1/2" and would need to find an additional .062" somewhere. All LA calibers in my recollection where made with this length Bolthead including the .532 Magnums.

The 338 Lapua (.588 rim diameter) and the ultra mags(.534 rim diameter)may have a different BH length. I can't recall.

Hope this helps lead you to the conclusion you are after.

Is there any particular reason having the 9/16 Bolt head is important?

[Robinhood]

Nice animal Bleeb! Is that a 7x7? My eyes lie to me sometimes.

[Chris_in_Idaho]

Is there any particular reason having the 9/16 Bolt head is important?

The 7 PRC and the 300 WSM both have a much larger internal case diameter than a belted magnum, which I believe could contribute to higher bolt thrust. Larger internal surface area for the pressure to push against the bolt head. I have wondered if that's why Savage gave the WSMs extra thick locking lugs, and if so, if they gave them to the 7prc as well.

[Dave Hoback]

The 7 PRC and the 300 WSM both have a much larger internal case diameter than a belted magnum, which I believe could contribute to higher bolt thrust. Larger internal surface area for the pressure to push against the bolt head. I have wondered if that's why Savage gave the WSMs extra thick locking lugs, and if so, if they gave them to the 7prc as well.


The WSM’s are considerably larger, at .555” as the parent case is the 404 Jeffereys, vs the 7mm PRC @ 532” with the 375 Ruger serving as the foundation. So being we know it’s Small Shank, I doubt it’s using anything else beefed up.

[efm77]

Interesting that they're using the small shank. All 375 Rugers and 300 PRC's that I've seen have been large shanks (same case diameter as the 7mm PRC as they're all derived from the 375 Ruger case). I have a 116 in 375 Ruger and a 110 in 300 PRC and they are both large shank. Also, they only have the 1/2" locking lugs, not the 9/16" like the WSM's and RUM's. My 375 Ruger appears to be a regular 116 action with no special mods to it. My 110 300 PRC on the other hand, appears to be built on the same action as the 338 Lapuas, as it has the enclosed receiver top and 8-40 screw holes.

[Dave Hoback]

Interesting that they're using the small shank. All 375 Rugers and 300 PRC's that I've seen have been large shanks (same case diameter as the 7mm PRC as they're all derived from the 375 Ruger case). I have a 116 in 375 Ruger and a 110 in 300 PRC and they are both large shank. Also, they only have the 1/2" locking lugs, not the 9/16" like the WSM's and RUM's. My 375 Ruger appears to be a regular 116 action with no special mods to it. My 110 300 PRC on the other hand, appears to be built on the same action as the 338 Lapuas, as it has the enclosed receiver top and 8-40 screw holes.


Well they aren’t exactly the same loading. Look at the picture. And bullet weight makes a huge impact. Remember physics: it takes an equal amount of force pushing on the Lugs as it does to propel a heavier projectile forward. The 7mmPRC has a 175gr projectile as heaviest. The 300PRC has a 212gr projectile as its heaviest. That is quite a difference.

Although they came from the same Parent Case, there is no contest on capacity. The 300PRC dwarfs the 7mm!
https://i.ibb.co/fNH82w9/0-E4-EFD0-D-2270-40-A4-B96-D-A681-F6-A87-B08.jpg (https://imgbb.com/)

[efm77]

Well they aren’t exactly the same loading. Look at the picture. And bullet weight makes a huge impact. Remember physics: it takes an equal amount of force pushing on the Lugs as it does to propel a heavier projectile forward. The 7mmPRC has a 175gr projectile as heaviest. The 300PRC has a 212gr projectile as its heaviest. That is quite a difference.

Although they came from the same Parent Case, there is no contest on capacity. The 300PRC dwarfs the 7mm!
https://i.ibb.co/fNH82w9/0-E4-EFD0-D-2270-40-A4-B96-D-A681-F6-A87-B08.jpg (https://imgbb.com/)

I'm well aware of the differences in the case lengths, as well as the bullets they use. I was merely referring to the case diameter. Heck, the 6.5 PRC's I've seen have been large shanks as well. All I said was given what I've seen, it's interesting that the 7mm's are small shanks.

[Bleeb]

Well that 7PRC did it. Congrats again.
Yes it did. As dead as those taken with my 340 Weatherby. Thanks.

[Dave Hoback]

Yes it did. As dead as those taken with my 340 Weatherby. Thanks.

And 7mm RemMag

[Chris_in_Idaho]

...Remember physics: it takes an equal amount of force pushing on the Lugs as it does to propel a heavier projectile forward. The 7mmPRC has a 175gr projectile as heaviest. The 300PRC has a 212gr projectile as its heaviest. That is quite a difference.

Not exactly. The force imparted on the bullet and other ejected particles and gasses is going to be roughly equal to the force imparted on the rifle as recoil, but that's not the same as the force on the locking lugs.

The pressure of the expanding gasses in the case is applied equally against all of the internal surface area of the case. The larger the internal diameter of the case, the harder the case head presses against the bolt face. However that doesn't mean more net recoil because the larger case has more surface area pressing forward (shoulder, body taper) as well. Recoil is going to be affected by the difference between the net forward surface area and the net rear surface area, and this difference is the bore diameter.

Imagine you have a long skinny case and a short fat case with the same bore diameter, capacity, pressure, etc. The fat case will put far more force against the bolt face, and also against the shoulder in the opposite direction. The skinny case will put less force against the bolt face and the shoulder. Their net force (recoil) will be the same because the bore diameter is the same, but the fat case is trying harder to split the chamber front from rear.

So, in my way of thinking, a fatter case needs a stronger recoil lug.

Hence my curiosity about the 7 PRC.