Greetings Everyone,
I recently acquired a HxWrks suppressor and after several unsatisfactory results using just a muzzle break on a 308 Mdrx.I noticed in several reviews ,an Oss/Hxwrks supressor being used when shopting the rifle for groups..
Desert Tech has acknowledged a Barrel Harmonics issue in the MDRX. Most Likely referring to the Fullpower rifles and not the intermediate set ups(Those all shoot well, they just heavy for caliber).
I figure this may be why the Barrel Block, Feedramp, Piston and Oprod connections were altered in the Wlvrn released at shot show this year.
The harmonics issue may be why I can have 1 round (usually from bolt release) grow the group to 2.5moa but have 4 rounds inside 0.75moa when doing my 5 shot groups at that time.
Happened a few times with 168gr Fed GmmK and even a reloading recipe I was testing next to the Keltec RFB.
I imagine this may have also been the reason for WILD changes in POI when changing match ammo (typically 168gr) types.Up to 4" right on Windage,which can translate to groups being off my target at 100yards.
-Test results-
Rifle
MDRx 2020
DT Reflex Handguard
OEM 308 MDR FE Barrel W/MDRX Gen 3 gasblock and adjuster updates (Basically an MDRX barrel and block)
HXWrks 30cal Qd muzzle brake (Previously was the Cobalt Kinetics Variant of this mount)
Aero Precision Ultralight SPR mount @ 1.5"
Acme Machine 1-8x34 LPVO
Covered Wood block at a rest for the front of the rifle.
168gr Fed Gmmk 1.4moa average (10 shot groups) with a flyer in each.Elevation adjustment after the first group. 9 hole average is 1.15moa.
168gr Hornady Black (1.6moa 5 shot average)
168gr S&B Match 1.7 moa 5 shot average
I didn't take my time on the first 5 (2.2moa) and was kinda tired...but took my time at my last 5 (1.3moa).
Much happier with these results. I think I'll keep it.
I recently acquired a HxWrks suppressor and after several unsatisfactory results using just a muzzle break on a 308 Mdrx.I noticed in several reviews ,an Oss/Hxwrks supressor being used when shopting the rifle for groups..
Desert Tech has acknowledged a Barrel Harmonics issue in the MDRX. Most Likely referring to the Fullpower rifles and not the intermediate set ups(Those all shoot well, they just heavy for caliber).
I figure this may be why the Barrel Block, Feedramp, Piston and Oprod connections were altered in the Wlvrn released at shot show this year.
The harmonics issue may be why I can have 1 round (usually from bolt release) grow the group to 2.5moa but have 4 rounds inside 0.75moa when doing my 5 shot groups at that time.
Happened a few times with 168gr Fed GmmK and even a reloading recipe I was testing next to the Keltec RFB.
I imagine this may have also been the reason for WILD changes in POI when changing match ammo (typically 168gr) types.Up to 4" right on Windage,which can translate to groups being off my target at 100yards.
-Test results-
Rifle
MDRx 2020
DT Reflex Handguard
OEM 308 MDR FE Barrel W/MDRX Gen 3 gasblock and adjuster updates (Basically an MDRX barrel and block)
HXWrks 30cal Qd muzzle brake (Previously was the Cobalt Kinetics Variant of this mount)
Aero Precision Ultralight SPR mount @ 1.5"
Acme Machine 1-8x34 LPVO
Covered Wood block at a rest for the front of the rifle.
168gr Fed Gmmk 1.4moa average (10 shot groups) with a flyer in each.Elevation adjustment after the first group. 9 hole average is 1.15moa.
168gr Hornady Black (1.6moa 5 shot average)
168gr S&B Match 1.7 moa 5 shot average
I didn't take my time on the first 5 (2.2moa) and was kinda tired...but took my time at my last 5 (1.3moa).
Much happier with these results. I think I'll keep it.
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