PTR 91 MSG first outing, issues

[NIXDSG]

I took out my new PTR yesterday and had mix results.
Upon receiving the rifle I cleaned, inspected, and ran the action a few times. Lightly oiled and reassembled.

For starters things went well. First round was fine, recoil was softer then I expected. Second round had a ftf, the bolt was just short of closing. the 3rd round was fine. I was only 50 yards out with open sights but I was surprised at the tight group for three 3 rounds, 1". Which is real good for my eyes and the crappy picnic bench I was shooting from with my son fidgeting next to me.

Loaded 3 more rounds. First two rounds were fine but the 3rd failed to eject. The bolt was back a little, couldn't see the casing. When I tried to pull back on the charging handle is moved back maybe 1" then it stopped. Stopped solid. I pushed the charging handle to close the bolt, and it moved. Not sure if it closed all the way. I then tried to open the bolt again and it moved some then stopped. It moved enough that I could see a 1/2" of the casing but would not open entirely.

I broke the gun down and with some significant force I managed to eject the casing. The brass has no sign of damage, jus the normal serrations like the other casings. A short inspection of the bolt showed no sign of damage, scuffing, contact to the bolt. I have not completed a more thorough inspection yet. I'm new to this type of action and would appreciate any insight on what to look for and what I may have done wrong.

Thanks,
NIXDSG

[Fuzzy-Reticle]

What ammunition are you using?

[NIXDSG]

I meant to say ammo type, sorry.

I was shooting some old Remington stuff my father bought 10 years ago for deer hunting. Has a small soft point, brass case.

I took the bolt out and inspected it again. Again I see nothing that looks out of the ordinary, but not really sure what to look for.

NIXDSG

[Fuzzy-Reticle]

It might be ammo related. I would try some military M80 type ammunition. I had a PTR years ago and an HK93 (5.56) and neither liked hunting type ammunition. It could also just need some breaking in but my first guess would be your ammo choice. Commercial .308 is typically loaded hotter than 7.62x51 and has a thinner case wall. The increased chamber presser and thinner wall may expand more in the fluted chamber of this type rifle and might lead to it sticking in the chamber and causing a malfunction.

Best explanation I can find for you:
http://www.militaryfirearm.com/Forum...s-Gap-and-Ammo

[SteyrAUG]

Sounds like an early JLD gun with the tight chambers.

[sig1473]

Sounds like an early JLD gun with the tight chambers.

I had 2xJLDs. Got rid of both. Was the issue tight chambers or the flutes not being cut deep enough?

[NIXDSG]

It's a recent purchase so I don't think it's an "early" gun. With a SN prefix of AW I don't think it's a JLD, but someone might know better then me.
I was curious if the Remington hunting ammo was going to be gtg, meh, it has been sitting there for 10 years so I thought I'd give it a try. I'll try some other ammo and see how it runs.

Will it be more accepting of other ammo types as it wears in?

NIXDSG

[SteyrAUG]

I had 2xJLDs. Got rid of both. Was the issue tight chambers or the flutes not being cut deep enough?

I had 100% failures with something like 16 rifles. In fairness they tried to create a more accurate 91 type rifle but in the process ran the chambers too tight. I don't think the problem was the flutes specifically, but when you deviate from HK spec bad things can happen.

[SteyrAUG]

It's a recent purchase so I don't think it's an "early" gun. With a SN prefix of AW I don't think it's a JLD, but someone might know better then me.
I was curious if the Remington hunting ammo was going to be gtg, meh, it has been sitting there for 10 years so I thought I'd give it a try. I'll try some other ammo and see how it runs.

Will it be more accepting of other ammo types as it wears in?

NIXDSG

Any 91 or HK contract gun should be good to go and eat anything. Before you do anything else, I'd contact PTR about getting them to correct the rifle under warranty. The idea that a rifle should only work with specific brands of ammo is BS.

[Dionysusigma]

In my personal opinion, any weapon that works well with Remington ammunition is more of a cautious exception than the acceptable rule.

I'd change the ammo first.