Your PVA prefit experience

[bohem]

We announced a hunting rifle yesterday to compete in the Fierce/Christensen/Proof market around 3k. Performance with factory ammo was a major consideration and I would say we nailed it. It is called "The MODUS"

This report came from Fritz Precision Shooting, a LR school in Idaho:

"Cold bore, dead center impact 1,072 yards. I spent some time behind it today and it's a shooter. 156 Bergers at 2810fps are 'fricken laser beams'. It's actually pretty impressive. The recoil is very linear and easy to manage for a light system. Having a solid shelf to place your thumb takes the vertical dispersion that traditional stocks tend to induce. I've spent A LOT of time behind countless rifle systems and this is truly a balanced hybrid between precision shooting and hunting. I really can't say enough about it. You can quote me on that. No joke. This is truly something else."
Don Fritz
The base model is just shy of 8lb and with certain upgrades will get as light at 6.5 (sub 8 with a scope is possible) which leaves a lot of weight budget for a bipod and scope/rings to use in NRL hunter matches or make weight for restrictions in some states.

We also have 450 Bushmaster as a caliber option that shoots sub MOA easily for those of us in straight wall regions. I sent a barrel to @flounderv2 several years ago when I started making the bushmaster conversions for bolt guns and he was thrilled with it.

We are delivering on a 4 week schedule right now.

Modus Hunting Series - Order Deposit

[email protected]

patriotvalleyarms.com

 

[Rob01]

Started a thread on it but figured I would put it in here too for all the PVA customers to see.

Bravo Zulu to our own Bohem!

A job very well done by Josh Kunz, aka @bohem , of Patriot Valley Arms in helping the people of NC during this disaster down here. Flying his plane down to deliver much needed supplies. Great job Josh...

www.snipershide.com

 

[Lawnboi]

@bohem

Question on your dasher reamer. How does it get along with alpha brass and alpha dasher dies?

 

[6brshooter]

Also @bohem , do you guys do the radius on breechface on LA cdg barrels? I know arc says "LA don't need them but it doesn't hurt."

 

[bohem]

Also @bohem , do you guys do the radius on breechface on LA cdg barrels? I know arc says "LA don't need them but it doesn't hurt."

The cone?

We cut the cone up to 284 bodies no matter what length CDG it's going on. This way if someone orders a barrel for a LA with a small body cartridge like a creedmoor it's still correct if they want to put it on a SA later.

The cone that's in the face is there for facilitate single feeding on top of an AW magazine and it's only required for case bodies smaller than 0.50" at the web. Since the 284 Win is 0.505 at the web it's technically not required but we do it becaue it's right on the line.

I tested single feeding with belted mags, PRC bodies and WSM/RUM bodies all without a single hiccup.

We don't put the cone on those barrels because then it allows owners to move them to legacy actions like the Nucleus/Archimedes/Mausingfield that don't use a cone.

The goal with the PVA approach is to do it when necessary to maximize the flexibility of shooters to move the barrels across different actions without degrading the performance of the barrel while it's in the CDG to start. So far the process is pretty solid.

 

[bohem]

@bohem

Question on your dasher reamer. How does it get along with alpha brass and alpha dasher dies?

No problem. I got ahold of the Alpha reamer and put it on the comparator and compared to the print that I laid out probably 10-11 years ago now. It's identical except for some details in the freebore which won't change the dies or brass at all.

We've made a LOT of dashers in the last 10 years and we cut them all the time still. The performance is never a problem.

 

[6brshooter]

Yes, the cone. Wasn't for what it was called technically, but knew you'd know what I meant. Good to know, I bought a cdg with a pva 7prc barrel on it.

 

[st1650]

So a 8.6 BLK prefit would be a flat breech and also work on a Nuke ? Interesting

 

[bohem]

So a 8.6 BLK prefit would be a flat breech and also work on a Nuke ? Interesting

No, the 8.6 BLK is a .473 case head and case body. Since it's smaller than 0.50" then it needs the cone for single feeding.

 

[st1650]

No, the 8.6 BLK is a .473 case head and case body. Since it's smaller than 0.50" then it needs the cone for single feeding.

View attachment 8543982

Wasn't there also a relationship between the case body and the diameter of the bullet ? ie how the larger diameters tend to feed easier than the smaller ones ?

 

[bohem]

Wasn't there also a relationship between the case body and the diameter of the bullet ? ie how the larger diameters tend to feed easier than the smaller ones ?

There can be, though a round nose will do more to help that than the larger bullet diameter. Typically the AR10's are more sensitive to bullet diameter (and nose L/D ratio) than the bolt guns are. It's more important to get that center line of the cartridge into the chamber mouth or on the chamfer/cone.

The center line height doesn't change with bullet diameter, but it does with case head diameter.

 

[jabonra]

Would it be possible to order a prefit with the ops/allen supressor contour and threads cut on the muzzle
end?

There can be, though a round nose will do more to help that than the larger bullet diameter. Typically the AR10's are more sensitive to bullet diameter (and nose L/D ratio) than the bolt guns are. It's more important to get that center line of the cartridge into the chamber mouth or on the chamfer/cone.

The center line height doesn't change with bullet diameter, but it does with case head diameter.

 

[bohem]

Would it be possible to order a prefit with the ops/allen supressor contour and threads cut on the muzzle
end?

Yes, but not as part of the sale orders.

 

[st1650]

Yes, but not as part of the sale orders.

Any plans for a 8.6 BLK Osprey prefit ?
I can't suffer the unspeakable shame of the faxon barrel nut prefit for another 12 months ...