DA50 in 50BMG, ACCESSORY LINKS.

[Cone_Skid_Cone]

Looking sharp. I think I might have to get in the game.

How do you find the reliability overall? I was a little nervous about a Chinese .50 upper, but if no one has blown up yet, i'm game.

My biggest issue is with firing pins. It may just be a problem with the original bolts, but part of the bolt assembly is held in place with a snap ring. Twice now, my snap ring has came out of its groove allowing the firing pin to travel back too far. If I don't keep an eye on the bolt face to see if the firing pin is seated properly, the firing pin will get jammed up behind the bolt face and mushroom the tip. The first one CanAm replaced, but now I just file down the sides of the firing pin where it mushroomed to allow it to seat properly again. I hope CanAm has fixed this problem with newer models.

 

[Jay]

My biggest issue is with firing pins. It may just be a problem with the original bolts, but part of the bolt assembly is held in place with a snap ring. Twice now, my snap ring has came out of its groove allowing the firing pin to travel back too far. If I don't keep an eye on the bolt face to see if the firing pin is seated properly, the firing pin will get jammed up behind the bolt face and mushroom the tip. The first one CanAm replaced, but now I just file down the sides of the firing pin where it mushroomed to allow it to seat properly again. I hope CanAm has fixed this problem with newer models.

Can you post pics of this CSC?

Cheers
Jay

 

[Cone_Skid_Cone]

Can you post pics of this CSC?

Cheers
Jay

This is where the back end of the firing pin seats, and where the hammer strikes the firing pin. The snap ring captures the block that keeps the firing pin from moving too far back, and keeps it alligned with the bolt face.

If you need more pictures, let me know.

 

[Jay]

Thanks CSC! Will look at mine when it arrives. Anyone else experience this &/or ask Canada Ammo about it? AFAIK the Gen2 has improved primary extraction. Do we know if/what else might have been done?

And I am on the verge of getting a 30MOA replacement steel rail from ATRS. Just gotta make sure I know what I need/want.

Cheers
Jay

 

[Scotty454]

This is where the back end of the firing pin seats, and where the hammer strikes the firing pin. The snap ring captures the block that keeps the firing pin from moving too far back, and keeps it alligned with the bolt face.

If you need more pictures, let me know.

That snap ring doesn't look like it's sitting in a groove... It can't just be free floating, relying on the spring tension to keep it there... Can it?

 

[FirearmsEnthusiast]

Funny - I had precisely the same problem on my Gen1 upper - and took nearly identical pictures...see below. The problem is that the C clip holding the firing pin support / guide assembly would dislodge under recoil as the channel for the clip was machined too shallow. Then you would get a misfire on the next shot with a light (or no) primer strike due to interference of the now off-center firing pin support with the firing pin.

I emailed CanAm and they sent a replacement bolt with a deeper channel - problem completely solved. I later upgraded to the Gen2 upper and the guide had been re-designed - zero problems with Gen2 so far.

 

[Jay]

Funny - I had precisely the same problem on my Gen1 upper - and took nearly identical pictures...see below. The problem is that the C clip holding the firing pin support / guide assembly would dislodge under recoil as the channel for the clip was machined too shallow. Then you would get a misfire on the next shot with a light (or no) primer strike due to interference of the now off-center firing pin support with the firing pin.

I emailed CanAm and they sent a replacement bolt with a deeper channel - problem completely solved. I later upgraded to the Gen2 upper and the guide had been re-designed - zero problems with Gen2 so far.

THAT'S what I wanted to hear! Thanks FirearmsEnthusiast! Also glad Gen2 has the improved primary extraction.

Back to talking about ACCESSORIES!!! Anyone got a bipod suggestion???

Cheers
Jay

 

[FirearmsEnthusiast]

THAT'S what I wanted to hear! Thanks FirearmsEnthusiast! Also glad Gen2 has the improved primary extraction.

Back to talking about ACCESSORIES!!! Anyone got a bipod suggestion???

Cheers
Jay

My pleasure - Gen2 uppers are awesome...you'll love yours.

Jerry from Mystic just emailed me - MPODs may be coming back in soon...could be a good choice!

 

[Jay]

Jerry from Mystic just emailed me - MPODs may be coming back in soon...could be a good choice!

Price Point?

Cheers
Jay

 

[Cone_Skid_Cone]

If it hasn't been said already, stay away from Atlas bipods with rifles this heavy. I still use mine, but never taller that its fully collapsed position. Much too wobbly with legs extended.

 

[alberta tactical rifle]

NightForce called me back... They are advising I go with the 1.5" high Unimount with a 56mm bell objective, NOT the 1.375" high...

I have modified my order with Hirsch Precision.

Cheers
Jay

A bit to high I believe.

This is with a 5.5x22x56 and our EXTRA high (1.375") rings on our DA50 rail. I went 30 MOA inclination as I don't expect this rig to be much of a 1 mile rifle. I have others that are so sport 50 and 75 MOA rails on them.

 

[alberta tactical rifle]

Looking sharp. I think I might have to get in the game.

How do you find the reliability overall? I was a little nervous about a Chinese .50 upper, but if no one has blown up yet, i'm game.

Ummmm How do you figure it is a Chinese upper? The designer is of Asian descent but that is a long stretch from being made in China.
From what I have determined the upper is made considerably closer to home, the barrel is US made and I can assure you the lowers we build are made right here in Calgary as are the 1s we made specifically for Canada Ammo.

 

[Gatehouse]

I was under the impression the barrels are US made and the rest of the upper is made in Vancouver. Or somewhere else in Canada....

Lowers are like ATRS said.

I've got about 250 rounds of IMI and PMC ammo through mine with no problems so far.

 

[freezer filler]

Hold out for the NXS and a Spuhr mount! Congrats on joining the BMG club!

 

[Jay]

WAAAAAY to high I believe. I will post a photo shortly of mine.

Ugh, so confused! I need help! NightForce said 1.5" Unimount... Scope will be the NightForce 5.5-22x56 NXS

Cheers
Jay

 

[alberta tactical rifle]

Ack! Scrambling... Going to have a good look at your site tonight, thanks ATR!

Need to compare your rail & rings!

Cheers
Jay

We have both plus 30 and plus 50 MOA rails. Using a Unimount and an inclined rail is not the best plan. The only thing worse would be a QD mount in my opinion.
Your 5.5x22 has 100 MOA built in so with out plus 50 MOA rail you "should" still be able to zero at 100 yards.
The 7075 aluminum we use to make rings from is in fact stronger and more resilient than the mild steel most steel rings are made of. All 6 of my personal 50s have our rings on them. I shoot the 50s A LOT and never had an issue with the rings allowing the scope to move or hold zero.

 

[Jay]

We have both plus 30 and plus 50 MOA rails. Using a Unimount and an inclined rail is not the best plan. The only thing worse would be a QD mount in my opinion.
Your 5.5x22 has 100 MOA built in so with out plus 50 MOA rail you "should" still be able to zero at 100 yards.
The 7075 aluminum we use to make rings from is in fact stronger and more resilient than the mild steel most steel rings are made of. All 6 of my personal 50s have our rings on them. I shoot the 50s A LOT and never had an issue with the rings allowing the scope to move or hold zero.

So, you're saying to use your 50MOA steel replacement rail for the DA50 plus your high rings? IIRC you need 70-80MOA to reach 1 mile, so the 50MOA rail plus the 50MOA in the scope (100MOA in scope, but 50 up, 50 down...) should do that no problem.

Without mocking up the rifle, is there any way to know if you could still zero at 100 yards? Or would you be low using the 50MOA steel rail?

Cheers
Jay

 

[no-one special]

Hold out for the NXS and a Spuhr mount! Congrats on joining the BMG club!

I would use decent rings rather than risk an expensive optic with a sphur mount. They are a large quantity of parts assembled to make a set of rings. More parts usually means more room for tolerance errors. Just my opinion.

 

[no-one special]

So, you're saying to use your 50MOA steel replacement rail for the DA50 plus your high rings? IIRC you need 70-80MOA to reach 1 mile, so the 50MOA rail plus the 50MOA in the scope (100MOA in scope, but 50 up, 50 down...) should do that no problem.

Without mocking up the rifle, is there any way to know if you could still zero at 100 yards? Or would you be low using the 50MOA steel rail?

Cheers
Jay

The manufacturers of all scopes give you a number that is close to what elevation there is in the scope but they are close but not always exactly X number that is advertised.
Your math seems about right so with their 50 moa rail and a NXS 5.5x22 you should in theory have 100 moa at your disposal.

 

[no-one special]

We have both plus 30 and plus 50 MOA rails. Using a Unimount and an inclined rail is not the best plan. The only thing worse would be a QD mount in my opinion.
Your 5.5x22 has 100 MOA built in so with out plus 50 MOA rail you "should" still be able to zero at 100 yards.
The 7075 aluminum we use to make rings from is in fact stronger and more resilient than the mild steel most steel rings are made of. All 6 of my personal 50s have our rings on them. I shoot the 50s A LOT and never had an issue with the rings allowing the scope to move or hold zero.

That looks like the 26" barrel to me? Do you think that 1 mile plus will be possible? Why not go with the 32" barrel?