Bought a MPA 300wm here and love it. Shoots nice groups and had great success out to past 1500 yards.
Going to do more load development to find tighter Velocity spreads
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Bought a MPA 300wm here and love it. Shoots nice groups and had great success out to past 1500 yards. View attachment 7371778View attachment 7371779 Going to do more load development to find tighter Velocity spreads
In Jan 2020 I got a 6.5 MPA Pro Comp Chassis (FDE) w/ Impact Action, a 26" M24 contour Bartlein Barrel, TriggerTech Diamond, Area 419 Hellfire Break , ZCO 5-27 x 56 & TBAC Bipod. The thing shoots lights out, sub MOA (3/8). It would shoot better if the Indian shooting the arrow was better.
I’m a fan. Only change I would have made is not selecting the QD Sphur so that a Send It MV3 wouldn’t have any obstructions. I’m really wanting the MV3.
I am running the 215 berger hybrids with a 1:10 twist barrel @2920. This barrel shoots fastLovely rifle! I am very impressed with my MPA, turning into the best rifle i have ever owned, and i have had rifles before that would do ragged hole group around 1/4”.
A lot of horsepower in that big Winmag cartridge. What bullet weight are you shooting and what MVs are you getting?
Have you tried shooting the super heavy high BC bullets in the 240 to 250 grain range? Some attractive options available these days in the Hornady Atips and the Bergers.
I realize twist rate might be a limitation, but have been playing around with my ballistic calculator using the very long monolithic Seneca and Cayuga bullets from PVA. Theoretically: Driving their 241 gn Seneca (claimed G1 of 1.15 and G7 of 0.555) at even half descent speeds (say 2550) using one of the progressive Reloder powders could give you similar wind drift compared to a traditional 50 BMG Hornady A-max load from 10 years ago at 1,500 yards. Assuming the bullet can handle the transonic phase it will do well out to beyond 2,000 yards... [Of course the 50 cal bullets have progressed as well, and the Cutting Edge 1,002 grain projectile has a G7 BC above 0.6.]
However, the fine print says they used a 7 twist 30 cal barrel to achieve that phenomenal result at 2800 fps. Never heard of anyone running a 7 twist barrel on a 30 cal of any kind, but it seems the bullet BC arms race is continuing at full speed.
Something to think about when it is time to buy a new barrel...
That is a superb set of components. Post some targets!
Presume you are happy with the ZCO scope?
Is this the tuner you can use with a can?
Bought a MPA 300wm here and love it. Shoots nice groups and had great success out to past 1500 yards. View attachment 7371778View attachment 7371779 Going to do more load development to find tighter Velocity spreads
Did you steal my rifle? That looks very similar to my Impact 300WM in a burnt bronze MPA ESR, lol.
Does your impact action sit level in the chassis? Mine does not so the chassis inclinometer is not level when the scope/action are. I was told by the gunsmith that put mine together that this is common with MPA chassis'. I also think i need to adjust the feed lip on my mag as it doesn't always want to feed right with factory FGGM SMK 190g.
I wish I knew how to do that stuff. My understanding is that it isn’t a huge deal as long as action and reticle are level. Just sets off my OCD. I would love to get it fixed if it wouldn’t cost a ton.I have read reports of the MPA chassis benefitting from bedding, I wonder if that would help you.
I have installed the barrel tuner from Aaron Hipp, and all i can say is “it works”, like in bullets holes touching at 100. Routinely see three shot groups below 0.2” now. Will do 5 shot groups soon.
Just something to be aware of: The original V1 DN3 brake is incompatible with the tuner. Not enough threads were grabbing onto the tuner. Most self timing and shimmer brakes and suppressors wil work though.
I contacted Phil at MPA and we worked out a deal to replace the V1 brake with the V2 brake, which fits perfectly. I am now using the V1 brake on another rifle.
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Groups first closed down to 0.2” as i turned the tuner, then opened up to about 0.4”, then closed down again to below 0.2”. Still need to do some fine tuning by moving the tuner in smaller increments. Shot off a bipod and a rear bag with another fidgety person on the other side of the integrated bench. My aiming error is likely 0.1”, and in the hands of a better shooter, and set up for free recoil, these groups probably would have looked even better.
You probably can achieve the same effects with powder charge and seating depth adjustment, but it is so much faster and more convenient. I have done load development at the bench a few times, but you have to cart a lot of gear with you. All you carry with you is one hex key.
For those that want to use factory ammo, this is a way to (almost) approach the same accuracy without needing to buy $2K worth of reloading kit. The same price as one good sizing die.
I ordered one three weeks ago, I’ll update this thread when I get it.any thoughts on this for entry level PRS....MPA BA PMR “PRO” competition rifle $2,499.00
I ordered one three weeks ago, I’ll update this thread when I get it.
Yup.Should be a fine rifle, i believe it uses a Curtis Axiom action minus the bolt fluting, right?
I got quoted a custom build by 360Precision for under $3k w the MPA BA chassis, this is gonna be my 1st bolt gun.I am in to get my eyes on the feedback and how you like the PMR Pro as well. I am on the verge of handing over my credit card info, these things look awesome. I would love to hear some feedback on the folder/vs non-folding chassis, basic BA vs the BA PMR Pro, and if anyone would recommend dropping a custom B/A in vs going with the Curtis Axiom and MPA barrel.
I have the 6.5CM MPA BA, amazing rifle, consistent 5 shot 1/4 MOA, the rifle was so accurate at 100 yards, I had to take load development to 200 yards to really see the differences.
I don't have alot of pics, this is 200yds, I pulled my 4th of 5 shots, eyed drift, but this is repeatable accuracy, not a one off groups that you can't repeat. Granted my reloads are pretty good, my last Chrono of 10 rounds was AVG 2791, HI 2798, LO 2785, SD 4, ES 13
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I got quoted a custom build by 360Precision for under $3k w the MPA BA chassis, this is gonna be my 1st bolt gun.
defiance tenacity action, mullerworks barrel, triggertech trigger, mpa ba chassis =build is under $3kAwesome man, I’m someone in the same boat. I have a few hunting rifles but nothing built for precision and long range shooting. I am curious what action/barrel/ trigger they dropped in the chassis?
Thanks for the input! Which MPA model did you go with? I’m really tempted by the MPA 5.6BA with Curtis axiom action.
Do you have a Teslong borescope?
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