Barrel Contour for Vudoo V22

[hacabrera071]

Hi,

I'm thinking about building a 22LR practice rifle (Vudoo V22 barreled action in my MPA chassis) and I'm wondering what your experiences are with different barrel contours for the V22 when paired with an MPA chassis.

My "big rifle" is a 6XC with Bartlein 26" #9 contour, which barely fits in my MPA chassis (due to the NV bridge), so, I'd like to remove my 6XC barreled action, throw in there the V22 and have at it, but I want to make sure I select the proper barrel contour.

Also, what is your opinion on the Scope base? I completely understand this is dependent on the scope and mount I use (Spuhr 34mil 0 MOA and Sig Sauer Tango6 5-30x56), but, I'm interested in hearing what your setups are, so I can take some ideas out of them.

Thanks in advance!

 

[Dthomas3523]

With a bartlein #9 (heavy varmint I believe), if you want the vudoo to be similar, a 22” mtu is likely the way to go.

Keep in mind that if mimicking your centerfire is your goal, balance is what you want to be looking at. Not overall weight.

If your centerfire weight is 18lbs and your vudoo is 14, you won’t be losing any training value moving the 14lb rifle around instead of an 18.

But if the vudoo is rear heavy and the centerfire is forward heavy, you will notice a pretty big difference in how you build positions and rest the rifle.

 

[hacabrera071]

With a bartlein #9 (heavy varmint I believe), if you want the vudoo to be similar, a 22” mtu is likely the way to go.

Keep in mind that if mimicking your centerfire is your goal, balance is what you want to be looking at. Not overall weight.

If your centerfire weight is 18lbs and your vudoo is 14, you won’t be losing any training value moving the 14lb rifle around instead of an 18.

But if the vudoo is rear heavy and the centerfire is forward heavy, you will notice a pretty big difference in how you build positions and rest the rifle.

I hadn't thought about weight balance, but that is a great point, I would certainly want the trainer to behave like the prs rifle (which in my case is very heavy in the front and not sooo much on the back). That being said, I think the MTU would probably help me the most while trying to mimick my prs rifle on a practice 22lr. Thanks for the tip sir, very much appreciated!

 

[Dthomas3523]

I hadn't thought about weight balance, but that is a great point, I would certainly want the trainer to behave like the prs rifle (which in my case is very heavy in the front and not sooo much on the back). That being said, I think the MTU would probably help me the most while trying to mimick my prs rifle on a practice 22lr. Thanks for the tip sir, very much appreciated!

No prob man. IMO, balance is the most important part of making a .22 mimic your centerfire.

We add weight to our centerfire *mostly* to aide in felt recoil reduction and keeping a good sight picture.

We don’t need to worry with recoil with a .22, so adding weight primarily only serves the purpose of mimicing the carry weight of our centerfire.

Now, if you have a 35lb centerfire, then yes, a 15lb .22 might not be great training value as you will see a big difference in moving the rifle around.

But if you run an 18-20lb centerfire, you won’t lose any speed or training value with a 14lb .22.

But if that .22 balances differently, IMO, you won’t get the full amount of training value and you might in fact degrade your skills with one rifle or the other.

If you can get your .22 to weigh the same as your centerfire AND balance the same, that’s awesome. If you have to pick one, balance all the way.

 

[hacabrera071]

No prob man. IMO, balance is the most important part of making a .22 mimic your centerfire.

We add weight to our centerfire *mostly* to aide in felt recoil reduction and keeping a good sight picture.

We don’t need to worry with recoil with a .22, so adding weight primarily only serves the purpose of mimicing the carry weight of our centerfire.

Now, if you have a 35lb centerfire, then yes, a 15lb .22 might not be great training value as you will see a big difference in moving the rifle around.

But if you run an 18-20lb centerfire, you won’t lose any speed or training value with a 14lb .22.

But if that .22 balances differently, IMO, you won’t get the full amount of training value and you might in fact degrade your skills with one rifle or the other.

If you can get your .22 to weigh the same as your centerfire AND balance the same, that’s awesome. If you have to pick one, balance all the way.

I see what you are saying sir, actually my center-fire rifle weights about 18 lbs, but i definitely need to work on getting it properly balanced (front/back).

Now, going back to the .22, I believe I might potentially be able to make the .22 weight about 14 lbs easily and if I can get it balanced the same way the center-fire rifle ends up, then I should be golden!

Again, thanks for the information, being new on the sport I never thought about rifle balance... I should have, but didn't... lol!!!

 

[hacabrera071]

I also use MPA's on my Comp rifles and Vudoo. I got a 20" Kukri bc that's what was available but I wish I got an MTU. I used the front half of a weight kit to help with the balance but it is still just a touch rear heavy on the Vudoo. Schmidt 3x20 on top. I also have a tungsten weight mounted to an MPA Rat adapter that I can attach to add weight or shift the balance point. I don't consider the Vudoo a trainer or NRL a training venue only, but all in all I use the same technique for rimfire and CF competition.

I use a 40 MOA base and that gives me about 18 mrad of travel with the Schmidt, IIRC. That gets me to about 350 or so but I rarely shoot to 300 much less farther. We don't shoot over 200 in our NRL22 club matches, only during our organized practices.

Hope that helps!

It certainly does help man!!! That kind of information is very valuable to me as it reflects the experience of people that have a setup very similar than the one I'm looking for... Now, balance wise on the rear of the chassis, what do you use? MPA's monopod?

Also, you said something very interesting to me, you are referring to a tungsten weight that you attach to the RAT, may I know which weight that is?

Last, but certainly not least, you say you use a 40MOA base, is that an aftermarket one? Or, did you order like that from Vudoo?

Thanks again sir, very much appreciated!!!

 

[RTH1800]

I ordered 3 Vudoo’s when they came out. Have shot several others since. Nice rifles.
That being said giving the strange names that relate to nothing is non informative bullshit.
There is a small degree of standardization in discussing barrel contours and they threw it out the window. The names are meaningless.

 

[hacabrera071]

The 40moa rail is from Vudoo. They have a 20, 30, 40, and a 60 iirc

The weight is a Tungsten bucking bar. I just epoxied it to the rail grabber.

Tungsten Bucking Bars | Midwest Tungsten Shop

Midwest Tungsten high density bucking bar rivet blocks reduce vibration and kickback while bucking rivets. Stock sizes below, customs bars can be made to your specifications.

midwesttungsten.com

MPA RAT Base - MasterPiece Arms, Inc.

The RAT Base is used on our RAT System (Rapid Adjustment Technology) and attaches a variety of accessories to the 1.5" Dovetail Cut on the BA Chassis System

masterpiecearms.com

I only have their small bag rider on the rear of the chassis. No heavy add ons like the monopod.

I got it man, that idea of the bucking bar was very clever, I'll try to balance the CF rifle (really needs more weight on the back), but, if I end up needing some extra way up front I'll certainly go down the same path you went through!

Cheers!

 

[hacabrera071]

I ordered 3 Vudoo’s when they came out. Have shot several others since. Nice rifles.
That being said giving the strange names that relate to nothing is non informative bullshit.
There is a small degree of standardization in discussing barrel contours and they threw it out the window. The names are meaningless.

I see what you're saying man! Thank you!