Home Forums Hunting & Shooting Hunting Rifles 7mm PRC = 280 +P?

I've been hearing through the grapevine that velocity on the PRC has not been as advertised in a lot of rifles.

What are you fellas seeing for actual chronograph velocities?

Not guesses, actual chronograph results with the 175 gr.

I was thinking about rebarreling one of mine...

I’m getting some popcorn…

Is 280 +p like a 280AI? 😂😇

Scotty
You want butter on your popcorn?
R

I cannot attest to the 7 PRC, but I sure can expound on the 280 AI. Once I began shooting the AI, I have not hunted with my 7 Wby since.

2810 fps. 22 inch barrel. 175 grain hornady factory ammo.

And like all my rifles that use hornady exclusive cartridges, I should just toss the brass in the fkn garbage after the first firing, haha!

Absolutely..

Can I get a Coke too?

I am having a rifle rebarreled to 7 PRC and bought a number of boxes of ELD X's to get it going before I gather hand loading supplies. I plan on using the factory brass that I shoot up.

I sure hope the brass isn't as bad as you say. I did the same thing when I bought a 6.5 Creedmoor and have to say, the brass is very good. On my 4th reloading with them. Have not cracked open the Lapua box yet.

Velocity seems to be all over the place with the 7 PRC depending on the type of barrel, length, and handloading vs. box fodder.

My Seekins rifle, in this chambering, with a 22” barrel was giving me speeds in the mid 2600’s to low 2700’s. That didn’t seem right compared to published velocity being pushed my others shooting the same Hornady 175 Eld-x ammo.

I had an RMA # from Seekins to ship my rifle back for them to check out if there was an issue with my barrel.

Before I shipped it off, I did two more range sessions with the rifle, increasing the number of shots down the barrel. After about 85 rounds on the tube. I started seeing velocities in the high 2700 range, with the highest being 2807.

I called Seekins, with the higher numbers and they said that was a velocity range they’d expect to see from the rifle using Hornady’s 175’s.

A buddy of mine has a Christensen made rifle in 7 PRC with a 24” Proof CF barrel. Shooting the same ammo, as I am. His velocity is 2825.

I guess, if you want higher FPS numbers, handload for it.

🦫

I got 2750 fps from a plain jane 280 Rem 22" barrel using the maximum load of Imr-7828ssc and the Sierra 175gr Gamekings. Load manual data is from Nosler #5. Acceptable accuracy at initial tests at 100 yds.

Edited by adding 22" barrel

Here is a thread on velocity with factory ammo. My rebarrel is with a 26" bartlein 8 twist barrel and I expect to flirt with velocity over 2950 fps with factory 175 ELD X factory loads. I think I will be a little disappointed if I don't get that velocity after about a 100 round break in.

https://rokslide.com/forums/threads/7-prc-velocities-factory-ammo.309226/

The velocity doesn't matter. Even if 280 AI lapua brass handloads achieve the same thing. It's all about the bullet not intruding past the neck. That is everything man! God forbid a bullet sits down past the neck inside the brass case. At that point, you can't even use the cartridge for hunting anymore!

Shhhhhhh don't tell that to my 300 Savage, I don't want it going on strike 🤫😂

You are fking nuts! Don't you dare let a bullet go beyond neck, inside that brass case! You could end up with 1 inch groups and totally miss a deer at extended range.

If you want FPS numbers hand load a 28 Nosler...

dave

I was thinking 7mm UM.

Back about two years ago I chronoed the Nosler 175 ABLR ammo from a CA Mesa…. 3000 on the nose with that stuff. I thought to myself “self, this thing will scream with a shoveful of N570 or 33”..

I can’t believe no one has mentioned the MSM.

Yep, and you’ll get carbon deposits on the bases of those bullets. You can’t go flinging carbon covered bullets around the countryside. 😳