Your PVA prefit experience

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.
 

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

 
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.
 
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@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.
 
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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.
 
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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.
 
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 ...
Not really. The stumbling block is the 3 twist barrel. We can go as fast as 7tw and I have some 7tw Rock Creek cut blanks here that would do anything subsonic but it won't make those special Maker bullets turn into copper broadheads. That's why we don't offer the caliber right now.
 
Not really. The stumbling block is the 3 twist barrel. We can go as fast as 7tw and I have some 7tw Rock Creek cut blanks here that would do anything subsonic but it won't make those special Maker bullets turn into copper broadheads. That's why we don't offer the caliber right now.
3" twist ? that's almost internally threaded...
 
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3" twist ? that's almost internally threaded...
No kidding!

The 3 twist requires the use of copper "solids" and really the only game in town on that specific niche is the Maker bullets. The super fast twist rate tears apart anything that isn't machined/swaged from a solid piece of brass or copper. The RPM makes the bullet open extremely fast when it hits and the bullets have been cut so they create a several hundred grain piece of razor sharp copper that works like a 950 fps broadhead. They're impressive on game, it's like having a 200-300 yd crossbow... though you can't use it in archery season.
 
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Started a thread on it but figured I would put it in here too for all the PVA customers to see.

Yup.
That floods likely ruined a lot of fine rifles.They will need some
 
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I just got my carbon fiber osprey in 6CM, and it shot one ragged hole using Norma golden target 107gr factory ammo.

(Even though the ammo had wild inconsistencies in its load, the extreme spread was 110 ft./s!)

On the flipside, I have another osprey, but the guys are looking at right now because it only seems to like 107 SMK FGMM ammo… and really doesn’t like much in the way of other factory loads. Sure, there are some that aren’t bad, but there’s nothing that put bullets in the same hole.
(Full disclosure, I bought that from someone else unused, and I’m not sure what reamer was used, etc.)
 
I must be the only one who hasnt had much luck with my Osprey - a 22GT prefit for my CDG.

I’ve tried 3 powders, 6 different projectiles (75, 80, 88 ELDms, 80 and 90SMKs, 85.5 Bergers), and cant get this thing to shoot with any consistency at all. .5” best group, 1.5” for next group – probably averaging out over 1moa for the 500+ rounds I’ve spent trying to get it to shoot so far. At this point I’ve nearly fired as much lead into the dirt as I’m willing to, in the aim of getting this shooting.

I’ve messaged a few of the lads on the Hide with the22gt pre-fits for the CDG who seem to be having better luck than me, but nothing that has worked for them has worked for me. Tried running her clean, fouled, jumped and jammed. No carbon ring. Hell I even bedded this Matrix Pro to try and get it to shoot. I’ve swapped the barrel over to the 6Dasher from my other CDG, and it shoots lights out on this setup too - so Ive eliminated every other variable. I cant really find anything else bar the barrel that I can point my finger at.

At this point Im pulling it off and sitting it on the shelf. If I was in the states Id offer it up for anyone to tinker with if they were up for the challenge. I think this is the first out of 30-something custom barrels Ive given up on.

At the end of the day though, shit happens, sometimes things dont work out - it is what it is.

As a follow up to this, given I’m over in Aus, it wasn’t practical to get it back to PVA to inspect, so I ended up having a local guy chamber up a Bart to replace it aaaannnnd - problem solved. 4 of the loads I had made up for the previous barrel all shot under 1/2” in the new one.

So - ultimately happy to have a rifle that shoots now, frustrating that it took so many rounds of experimenting to figure it out, but it is what it is.

My buddies 6GT barrel that we imported at the same time is a laser, so I think I just copped some bad luck. Obviously plenty of super happy PVA customers here. As I said - shit happens.

I emailed the lads 3 weeks back to let them know the outcome, but haven’t heard back as yet.
 
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As a follow up to this, given I’m over in Aus, it wasn’t practical to get it back to PVA to inspect, so I ended up having a local guy chamber up a Bart to replace it aaaannnnd - problem solved. 4 of the loads I had made up for the previous barrel all shot under 1/2” in the new one.

So - ultimately happy to have a rifle that shoots now, frustrating that it took so many rounds of experimenting to figure it out, but it is what it is.

My buddies 6GT barrel that we imported at the same time is a laser, so I think I just copped some bad luck. Obviously plenty of super happy PVA customers here. As I said - shit happens.

I emailed the lads 3 weeks back to let them know the outcome, but haven’t heard back as yet.
I would give them a call. Josh and Ben are great to deal with and have a ton of great info to share. They just came out of Shot Show as well.

I had some issues with a recent barrel that I ultimately tracked down to the muzzle brake. I spent 300 rounds, about 280 rounds too many, before I finally pulled the brake. Problem solved. Switched to a different brake/can setup and it’s now a laser like both other Ospreys.

Ben took the time to be patient with me over a handful of calls while we tried to figure out what was going on.
 
Nice! Makes me feel better that I'm getting just under 2,800.
I originally had a 30-06 barrel on it. I got amazing accuracy with my handloads. I was pushing a 208 ELDM to 2675-2700, but I got tired of leaking primers and spending hours reloading. I'm OK with factory 300 PRC- it's more "mild" but still has better performance. Sometimes it's better to go to a magnum and not try to wring out every bit of performance from a standard cartridge. Still have that 30-06 barrel- will probably get it rechambered in the future.
 
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Finally got my PVA 223 barrel dialed in after a lot of fighting. This is the pickiest barrel I’ve ever owned. I shot about 300 rounds of 69/75/77gr through it, 1-1.5” then shot some 75 gr ELDM with good results and 80.5gr. I dialed in my load to 24.5 or 24.7 gr varget with 80.5gr Berger at 2.50 coal.
Feed from my AI mags with no issues.
 

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Finally got my PVA 223 barrel dialed in after a lot of fighting. This is the pickiest barrel I’ve ever owned. I shot about 300 rounds of 69/75/77gr through it, 1-1.5” then shot some 75 gr ELDM with good results and 80.5gr. I dialed in my load to 24.5 or 24.7 gr varget with 80.5gr Berger at 2.50 coal.
Feed from my AI mags with no issues.

What powder.

I have a 223 wylde osprey prefit that I havnt even gotten close to sub 1” with 80 eldm and 85.5 LRHT. Going to try some 75eldm and if that’s a no go I’m giving up on it
 
What powder.

I have a 223 wylde osprey prefit that I havnt even gotten close to sub 1” with 80 eldm and 85.5 LRHT. Going to try some 75eldm and if that’s a no go I’m giving up on it
That’s how it was for me for awhile man. It was SUPER picky. I used some 8208 with 75gr and those shot decent. Varget are 75gr was terrible! If you have the .100 FB like me try 80.5gr at 2.50 coal with 24.5 gr varget and 205M.
 
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That’s how it was for me for awhile man. It was SUPER picky. I used some 8208 with 75gr and those shot decent. Varget are 75gr was terrible! If you have the .100 FB like me try 80.5gr at 2.50 coal with 24.5 gr varget and 205M.
I had a hard time too, but I think a lot of it was the muzzle brake. I also could not load a 223AI with any powder close to where I had been at previously, I think because the freebore was tighter (that was on me, I gave them a loaded round and should have just asked for a longer FB).

I got the 80 ELD to shoot in my 223AI with 24.6gr of Varget and a 0.015" jump. That was in Winchester brass.
 
That’s how it was for me for awhile man. It was SUPER picky. I used some 8208 with 75gr and those shot decent. Varget are 75gr was terrible! If you have the .100 FB like me try 80.5gr at 2.50 coal with 24.5 gr varget and 205M.
Mine is a wylde .062 fb. I will have to try xbr, so far only varget used. I’m giving it another hundred rounds and not messing with it if it dosnt pick up.
 
That’s how it was for me for awhile man. It was SUPER picky. I used some 8208 with 75gr and those shot decent. Varget are 75gr was terrible! If you have the .100 FB like me try 80.5gr at 2.50 coal with 24.5 gr varget and 205M.
I had a load that hammered with 75gr eldm’s and then the next lot shot like crap. I had to slow them down to like 2550 fps and they tightened up, but I don’t want a load that shot that slow. I was pulling my hair out and then gave up on them. I still have some of the originals loaded up that I’ll shoot a group out of every now and then when I’m having trouble with another combination to prove to myself I’m not crazy.