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Posted: 11/29/2013 8:48:16 PM EDT
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Hey guys this is the first time I have seen this in person. This was either Tula or Monarch .223 (had multiple mags filled with both) My friend was shooting when this happened so I can't tell you if it felt underpowered or anything.
I have had seemingly weak rounds before from Tula. Could being underpowered make a bullet keyhole? Is my barrel damaged now? Distance ~60-70 yards Del-ton 20" barrel, 1:9 twist Thanks guys 
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Definitely looks like a keyholed round to me. Was there any obstructions in between the target and where you were shooting? i,e bushes, foliage? How did the rifle shoot after that was noticed? Could be you just got an under powered round and I wouldn't sweat it much if it functions correctly now.
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Quoted:
Definitely looks like a keyholed round to me. Was there any obstructions in between the target and where you were shooting? i,e bushes, foliage? How did the rifle shoot after that was noticed? Could be you just got an under powered round and I wouldn't sweat it much if it functions correctly now. It was clear all the way to the targets and everything was working fine when we packed up. I was mostly concerned with it messing up my rifling (if that's even possible). |
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Hmm was that from a Century tantal? I saw a del-ton barrel that allegedly had 5k rounds on it keyhole like that every shot. Even at close range it was already key holing. The guy completed the competition with it, but said he was going to re barrel it ASAP. |
That reminds me of one of those Hubble deep space pics with all the galaxies.
So what's the story? |
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The bullets were designed to do that because it wounds the enemy and takes three people out of the fight, yadda yadda yadda.
No, seriously, it looks like a keyhole, and odds are it just didn't have enough oomph behind it to stabilize. I doubt there's anything wrong with the rifle. Odd to see that with a 20" barrel, but it does happen, probably a low powder charge due to bad QC, as opposed to all of the ammo being right at the threshold. |
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Quoted: now i could be wrong...but if you using a 1:9 twist, is there a possibily your shooting heavy 77 (or 75)grain rounds and they not be stabilising reliably due to the relatively fast twist rate? |
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You are definitely wrong since in his first post he states which brands he is using, and they do not make 77gr rounds. Quoted:
Quoted:
now i could be wrong...but if you using a 1:9 twist, is there a possibily your shooting heavy 77 (or 75)grain rounds and they not be stabilising reliably due to the relatively fast twist rate? tula DOES make 75 grain (which 1:9 could have problems with) hollow point, is there a chance due to poor QC that a 75 grain hp bullet got mixed with a box of 223 tula 55 grain, or even that op bought a box of 75 grain hp without realising it -http://www.bulkammo.com/bulk-223-ammo-223rem75hptulablack-500 he gives us the brand, but not the grainage so did op by a box of 55 grain or 75 grain? and true as far as a ican tell monarch doe sNOT make heavy grain 223 |
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All ammo used was 55 gr ok, that said. Yes this was a keyhole round No keyholing rounds do NOT damage barrels as keyholing occurs afte rthe round has left the barrel HOWEVER keyholing could indicate a already damaged barrel (time to bore scope it and check the rifling) Yes a low powder charge could cause the round not to stabalize properly, thus keyhole my personal opinion is continue shooting, once could be happenstance, twice could indicate a problem, if you see a second keyhole, take the rifle to a gunsmith and see if they can borescope to insure it's not the rifle, if teh rifle is good, it's the ammo at which point, you get what you pay for has never been more true and it's due to being tula ammo |
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ok, that said. Yes this was a keyhole round No keyholing rounds do NOT damage barrels as keyholing occurs afte rthe round has left the barrel HOWEVER keyholing could indicate a already damaged barrel (time to bore scope it and check the rifling) Yes a low powder charge could cause the round not to stabalize properly, thus keyhole my personal opinion is continue shooting, once could be happenstance, twice could indicate a problem, if you see a second keyhole, take the rifle to a gunsmith and see if they can borescope to insure it's not the rifle, if teh rifle is good, it's the ammo at which point, you get what you pay for has never been more true and it's due to being tula ammo Quoted:
Quoted:
All ammo used was 55 gr ok, that said. Yes this was a keyhole round No keyholing rounds do NOT damage barrels as keyholing occurs afte rthe round has left the barrel HOWEVER keyholing could indicate a already damaged barrel (time to bore scope it and check the rifling) Yes a low powder charge could cause the round not to stabalize properly, thus keyhole my personal opinion is continue shooting, once could be happenstance, twice could indicate a problem, if you see a second keyhole, take the rifle to a gunsmith and see if they can borescope to insure it's not the rifle, if teh rifle is good, it's the ammo at which point, you get what you pay for has never been more true and it's due to being tula ammo I'll definitely be on the look out for more. Thanks for the insight 
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Quoted:
now i could be wrong...but if you using a 1:9 twist, is there a possibily your shooting heavy 77 (or 75)grain rounds and they not be stabilising reliably due to the relatively fast twist rate? You got that wrong. A 1-9 twist is slow. For the 77gr pills you want a faster twist like the 1-7. |
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