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  1. R

    AR10 6.5 creedmoor, is copper blob on gas port common?

    i just noticed you mentioned primer cratering,, there is a slight amount but i am getting some other pressure signs, blown primer, ejector marks, flat primer,, which i have been addressing and that is why i wound up borescoping it cause i wanted to see if there was anything unusual. But no idea...
  2. R

    AR10 6.5 creedmoor, is copper blob on gas port common?

    yes, i am going to update post,, criterion is being very stand up-ish and they are sending new barrel with return label. it must be tough to put gas port right thru a "valley" part of the rifling right? i mean, an ar barrel can't be rotated and the gas port has to be pretty exact distance...
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    AR10 6.5 creedmoor, is copper blob on gas port common?

    i will play around with it some more but it is amazing the wide range of observations on the subject. i still can't imagine the bullet doing well with some of the jacket missing but i guess that is why i posted on here,, I just really don't know. i do know the ES on the hornady sure...
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    AR10 6.5 creedmoor, is copper blob on gas port common?

    i should elaborate, when i say it shoots, it's nothing to write home about, and the ES has increased to about 110 vs first box of same ammo which the ES was around 40 ish. and this has only been about 50 rds. i will see what they say. it's too bad there isn't a tool on a shank thta...
  5. R

    AR10 6.5 creedmoor, is copper blob on gas port common?

    I was having some over pressure problems with a particular factory ammo and after checking some other things, i decided to bore scope it.
  6. R

    AR10 6.5 creedmoor, is copper blob on gas port common?

    UPDATE 12/21/23 criterion looked at my pics and are sending a new barrel. i keep trying to get the blob out and that thing is being tenacious,, i recently poured boretech eliminator thru the muzzle so i flowed over copper and down gas hole and let it sit for a couple days, got some...
  7. R

    Rifle Scopes cheap and easy sunshade for multiple scopes? any good idea's?

    dammit! how did you find me? I'm using a VRBO and wearing sunglasses when I login?
  8. R

    Rifle Scopes cheap and easy sunshade for multiple scopes? any good idea's?

    those solo cups are pricey! you must be a wealthy lawyer or accountant!
  9. R

    Rifle Scopes cheap and easy sunshade for multiple scopes? any good idea's?

    that monstrum thing looks fairly cool and universal!
  10. R

    Rifle Scopes cheap and easy sunshade for multiple scopes? any good idea's?

    if redneckbmx says they work, then I would bet anything they work. i will say that the thing that goes between my scope and pvs-30 looks very much like a beer cozy, which is i mentioned it. but my feelings are hurt and I am going to go cry for a while. back soon with more stupid questions,,,,
  11. R

    Rifle Scopes cheap and easy sunshade for multiple scopes? any good idea's?

    A LAWYER!!!! thems fightin' words! firefighter, retired now. and your Google-Fu is impressive! thanks for the links. i used my file folder invention again the other day. I owe you a beer. I can't believe both you and my wife think i am lazy!
  12. R

    6.5cm AR10 ammo recommendation for lighter loads. NOT a cycling problem

    my buffer tube depth is 9 5/8" ,, so i assume it is carbine length
  13. R

    6.5cm AR10 ammo recommendation for lighter loads. NOT a cycling problem

    I’ve been looking around for an8.5oz buffer weight. Searches have not found what brand or shop would you recommend for an 8.5oz buffer. which spring have you used and prefer, lb wise?
  14. R

    best place to buy factory ammo these days? maybe family run?

    i have also noticed that some places charge sales tax and some don't. I live in a place where we don't have state income tax but the sales tax, property tax, and insurance rates are insanely high so no state income tax is not all that great. our sales tax is about 9%. but i placed...
  15. R

    6.5cm AR10 ammo recommendation for lighter loads. NOT a cycling problem

    so, it is the same otherwise than the barrel, and it is acting completely different? that is crazy. what do you think it is?
  16. R

    Rifle Scopes cheap and easy sunshade for multiple scopes? any good idea's?

    stretchy things are super handy! Thanks for the intelligent response. If only everyone could do that.
  17. R

    6.5cm AR10 ammo recommendation for lighter loads. NOT a cycling problem

    I measured the fired brass, and it seems to have measurements consistent with a normal sized chamber
  18. R

    Rifle Scopes cheap and easy sunshade for multiple scopes? any good idea's?

    ‘sup Corey Well, I didn’t PAY 4k for it. But I might. Order and shipping takes time, In the meantime, just looking for other ideas for short term in case it happens again So far, 2 out of three responses are from cool folks. Not bad.