condomboy
CGN Ultra frequent flyer
- Location
- Chilliwack
are you chambering a round in it or just air? a 50 is a different creature for sure and there is a definite difference playing with the bolt with an empty chamber and with a round in.
DA 50BMG Range Report
- Thread starter Gatehouse
- Start date
are you chambering a round in it or just air? a 50 is a different creature for sure and there is a definite difference playing with the bolt with an empty chamber and with a round in.
stuckon308
CGN Ultra frequent flyer
- Location
- MB
Yeah. I just read about it on a different thread. My Barrett doesn't do it so I was curious.
Finally shot a group at 475 yards. Wind was running right to left, but gusting a bit. It's rarely perfectly calm at our range, but it wasn't crazy today, either.
Ammo is the IMI 661 gr that Canada Ammo sells.
First 2 shots were fairly close to each other, ok, good. Then I messed up the third shot
Then the fourth shot went back into the group.
The 3 shots together form a 4.5" group. I'm reasonably sure that if I changed a few things, there wouldn't have been a flyer.
First, the orange dot I painted was too small. As you can see in the pic, it's just a 3-9 Leupold scope. The crosshairs completely obscured the orange dot at that range, so I had to hold on where I thought it was, but no way was it precise. So, bigger aiming point and/or bigger scope would have helped. This is not my first rodeo, and paint is cheap, so I should have known better.
The bipod works pretty good, but I'm waiting for Mystic Precision to have the M-Pods ready again. They look very sturdy and would provide a rock solid platform.
On the plus side, the hammer/trigger spring provided with the upper is pretty darn good. I should actually measure it's poundage on my pull scale, but it's nice and light. It makes shooting much easier.
I am keenly aware that one group (especially one with a flyer) is not definitive of anything. However, the group at 200 and this three shot grop at 475 were both slightly under MOA, so I would say that this rifle will shoot. Slightly bigger scope, beefier bipod and better target would be easy improvements. I assume the ATR non restricted lower could have an even better trigger, so that may improve things, too. And if someone wanted to handload for this rifle, that could make it even better. This ammo seems accurate enough though, so I'm going to stick with it.
It's funny, I never really wanted a 50, but now I couldn't imagine not having one. Especially the DA50, that offers this performance at a fraction of the price of many other 50's. After shooting the group, I cracked the gong a few times and finished off the 10 round box, and giggled that I just spent $60.
One months ago in Russia 408CheyTac 2367 Yards under 0.7 MOA "Lobaev Arms"
Attachments
Gatehouse
CGN Ultra frequent flyer
- Location
- Pemberton BC
There is no movement when a round is chanbered. Definite movement with empty chamber.
Trigger is stock, spring and hammer that came with the upper.
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stuckon308
CGN Ultra frequent flyer
- Location
- MB
Have you had any issues with the IMI ammo sticking in the chamber? I fired ten rounds yesterday and it's almost like the chamber is too short and the last 1/32" of brass is getting stuck. I also tried a couple of American Eagle cheapies that I had and the same thing happened.
Other than the bolt issue, this gun is more fun than my Barrett.
Other than the bolt issue, this gun is more fun than my Barrett.
FirearmsEnthusiast
CGN frequent flyer
- Location
- Kingston, ON
By getting stuck in the chamber - is the bolt hard to close on a live round, or does the bolt stick on extraction of the fired round? Also, to you know if you have the Gen 1 (pre early 2016) or Gen 2 upper - they improved the camming action to aid with extraction in Gen 2.
One thing that did help was to lightly lubricate the outside of the next only with Hornady One Shot case lube. Do not lubricate the shoulder or the whole case, as this may increase bolt thrust. Just want to keep the neck from sticking. My guess is that the chamber neck area isn't super-polished...but this quickly goes away and I love my DA50 upper!
I found that the bolt was stick with American Eagle as those round are notoriously loaded a bit hot. This got better after 20-30 rounds, but I also switched to handloads. I haven't used IMI brass, but I find the IVI brass to produce higher pressure than Hornady brass - a load using H50BMG that is fine with Hornady brass produces pressure signs in IVI for me, so start low and treat each .50 BMG brass head stamp as a separate load, tracked and developed separately.
naktabar72
Regular
- Location
- Posted to #### Hole QC
In few weeks you fired three round????
I have one of the first run and it opens and closes like the others have said.
If the bolt is loose on an empty chamber the lugs are not touching the face of the breech.
So if it's tight closing on a round, does this not mean 0 head space.
Are these not tighter than a machine gun chamber, making it harder to remove.
Are Hornady Amax just as hard to remove.
If the bolt is loose on an empty chamber the lugs are not touching the face of the breech.
So if it's tight closing on a round, does this not mean 0 head space.
Are these not tighter than a machine gun chamber, making it harder to remove.
Are Hornady Amax just as hard to remove.
stuckon308
CGN Ultra frequent flyer
- Location
- MB
It closes easily on a live round. Extraction after firing is difficult. Loosening up a bit if I let it sit for a couple of minutes. But I still need to hit it with my fist twice for it to come out. It is a Gen I. I will get ahold of Canada Ammo after the weekend.
FirearmsEnthusiast
CGN frequent flyer
- Location
- Kingston, ON
Had the same issue with my Gen 1 - they said it would loosen up after more rounds. Be extra careful to look for pressure signs, as a sticky bolt lift can be one of them. Look on the case head at the primer (cratering, etc) and for extractor wipe and for brass flowing into the ejector hole which leaves a raised circle on the case head.
Try lubing the neck (only) a bit as per my previous post.
If you handload, a reduced powder charge makes all of this go away (which to me speaks to a pressure issue with factory ammo) - less stress on the equipment and still send 647-750 gr freight trains downrange at 2,600+ FPS!
Gatehouse
CGN Ultra frequent flyer
- Location
- Pemberton BC
I've had no issues with any sort of brass sticking. I really like this rifle. Had a group of 30 people up the other day and they all shot it once. All the women hit the target. Men... Not so much 
Gatehouse
CGN Ultra frequent flyer
- Location
- Pemberton BC
The rifle now has a Alberta Tactical Rifle lower installed. The ATR lower is very beefy, looks more streamlined than a regular AR15 lower and the upper/lower attachment system is much more solid. I'm eager to try this out again at 475 yard to see if there has been any accuracy change, but since the snow is now waist deep at our range, it is probably going to have to wait a few months before I can walk up the hill to put up a target.
The rifle now has a Alberta Tactical Rifle lower installed. The ATR lower is very beefy, looks more streamlined than a regular AR15 lower and the upper/lower attachment system is much more solid. I'm eager to try this out again at 475 yard to see if there has been any accuracy change, but since the snow is now waist deep at our range, it is probably going to have to wait a few months before I can walk up the hill to put up a target.
Very nice! What kind of Scope and bipod do you have on there?
gallen270
Youth Group Leader
- Location
- albert county, new brunswick
Also curious. Do you like the prs as well?
Gatehouse
CGN Ultra frequent flyer
- Location
- Pemberton BC
Scope is a Vortex Viper HS 4-16x44 BDC and it has 30mm Vortex rings
Bipod is $25 of materials welded and shaped into a bipod with adjustable legs. It's heavy, doesn't pivot or do anything cool, but it's solid and stands up under the weight of this heavy rifle. I don't anticipate packing this rifle far from the truck so it's not really an issue.
The PRS is a nice addition to the rifle, feels fine and is adjustable.....and most importantly, it looks cool.
Bipod is $25 of materials welded and shaped into a bipod with adjustable legs. It's heavy, doesn't pivot or do anything cool, but it's solid and stands up under the weight of this heavy rifle. I don't anticipate packing this rifle far from the truck so it's not really an issue.
The PRS is a nice addition to the rifle, feels fine and is adjustable.....and most importantly, it looks cool.
Great pics! I have a similar rifle - it was one of the 2 that ATRS assembled and then sold as complete rifles. I've had it since the summer but have yet to shoot it. What are you using for lube/grease if anything? I ask because of the note included with the upper about always using grease. Cheers.
Gatehouse
CGN Ultra frequent flyer
- Location
- Pemberton BC
I don't think I saw that note. What did it say? I have just used G96 on it.
Gatehouse
CGN Ultra frequent flyer
- Location
- Pemberton BC
Ah, ok. Just standard back of the lugs grease job. I thought it was something weird.
I just use a little silver tube of moly grease from NAPA on all my bolt action lugs, except when really cold.
I just use a little silver tube of moly grease from NAPA on all my bolt action lugs, except when really cold.
