MPA BA comp or Foundation?

[Marv_2101]

This isn’t a which one is better post I truly like both stock/chassis more of some advice on a build I have going on.

I currently have a bergara b14r in a mpa ba comp chassis and it is very nice and very adjustable which is a good thing as my daughter shooting with me and I’m 6’4 and she’s not quiet 5’ so there’s a huge LOP difference lol the new barreled action will be in 6.5 creedmoor that she will also shoot. I recently got to shoot a 6 dasher in a foundation and REALLY liked that stock.

Option 1: Use the MPA chassis for both barreled actions and just swap them out as needed when we shoot. We definitely will shoot the .22lr more probably go threw 1000 rounds a week right now since the weather is nice.

Option 2: Put the 6.5 in the MPA chassis and order a cheaper stock for the .22lr like a krg bravo, mdt xrs etc.

Option 3: Leave the .22lr in the MPA and order a foundation for the 6.5 and have it setup with spacers so she can still shoot it will.

I think I like stocks more than chassis but the chassis just flat out work and work well and not to mention the adjustability, weight tuning etc is all super easy. Any advice is welcome.

 

[OREGUN]

Option one sucks because you will waste time and money switching and re-zeroing and end up not shooting whichever is not in the preferred chassis.

2 sucks because you are putting the gun you expect to shoot most in some mythic “cheaper stock”…which won’t be what you want.

3 is tough because it’s hard to go really short on the foundation LOP.

With all that said, I say leave the 22 alone, easily adjusted for either of you. . Put the new build in the Foundation you want and go as short as you can stand on the LOP. You can shoot a shorter LOP than you think and she can compromise the other way too. It’s the “problem” with a stock; you end up making a few compromises. Her shorter arms and neck and smaller hands are going to mean the Foundation won’t ever fit her in the same way an adjusted MPA chassis will. If she really takes to the centerfire shooting, she deserves her own chassis but for now, you are writing the checks and should get the stock you want. I have two Foundations and have had a series of MPA Matrixeses (matrices?) over the years.

ETA: she can learn to shoot with a longer LOP and a different fit than she thinks is perfect. For years, shooters won championships with a LOP that would seem laughably long today. Training > fiddling with and worrying over perfect adjustment.

 

[ma smith]

+1 Leave well enough alone on the b14.

 

[hlee]

Option 5. Build your daughter a 6.5 in a new MPA chassis, leaving the 22 alone. Build yourself a whatever you want in a Foundation as money becomes available.

 

[Dead Eye Dick]

Option 5. Build your daughter a 6.5 in a new MPA chassis, leaving the 22 alone. Build yourself a whatever you want in a Foundation as money becomes available.

What he said ^^^^

 

[Jcarpenter223]

I’m going to echo here, keep the 22 in mpa and grab a foundation for the 6.5cm. Swapping bipod and arca attachments will save some coin.

I tried the 2 barreled actions using one chassis/stock and it sucked majorly. As it’s been alluded to, rezeroing was an absolute pain in the ass and I still had property at the time to zero out the back window

 

[Fortworthguy]

Option one sucks because you will waste time and money switching and re-zeroing and end up not shooting whichever is not in the preferred chassis.

2 sucks because you are putting the gun you expect to shoot most in some mythic “cheaper stock”…which won’t be what you want.

3 is tough because it’s hard to go really short on the foundation LOP.

With all that said, I say leave the 22 alone, easily adjusted for either of you. . Put the new build in the Foundation you want and go as short as you can stand on the LOP. You can shoot a shorter LOP than you think and she can compromise the other way too. It’s the “problem” with a stock; you end up making a few compromises. Her shorter arms and neck and smaller hands are going to mean the Foundation won’t ever fit her in the same way an adjusted MPA chassis will. If she really takes to the centerfire shooting, she deserves her own chassis but for now, you are writing the checks and should get the stock you want. I have two Foundations and have had a series of MPA Matrixeses (matrices?) over the years.

ETA: she can learn to shoot with a longer LOP and a different fit than she thinks is perfect. For years, shooters won championships with a LOP that would seem laughably long today. Training > fiddling with and worrying over perfect adjustment.

KRG bravo and the xrs chassis are both awesome old school stocks. They perform very well. I have the xrs on a 6.5 prc that can consistently hit a 6” target at 1500 yards. I have the videos to prove it.

 

[Fortworthguy]

KRG bravo and the xrs chassis are both awesome old school stocks. They perform very well. I have the xrs on a 6.5 prc that can consistently hit a 6” target at 1500 yards. I have the videos to prove it.

I prefer the KRG bravo on my 308 more than the xrs for feel. The KRG is very comfortable and the add on accessories are already pre drilled. No need for m lok

 

[Marv_2101]

I ended up going with a manners TCS. I haven’t got the gun together yet but I did throw my trainer .22lr in it the other day to see how it feels and I’m not sure which one I like best. The MPA with no weights is 16.4lbs the TCS is 17.8lbs with 1 weight in the rear and all the weights in the arca rail.

I know the MPA can be made heavier over all but both sure pass 20lbs pretty easy. And once your over 20lbs is an extra 3-5lbs really noticeable?

 

[Sterlingb06]

If you're going to be swapping between the barreled actions a lot, the MPA chassis seems like the most convenient choice. It’s got the adjustability and will save you time and hassle when switching. If you’re leaning more towards stocks, though, the KRG Bravo or MDT XRS are solid picks for the .22LR and would give you a more traditional feel while keeping costs lower. But if you like the Foundation, it’s tough to beat for the 6.5