What Would You Do About This New Barrel?

[5-SHOTS]

Those burrs cannot be eliminated easily, maybe with the exception of a good gunsmith and spending a good amount of money. In any case, that circular sign in the throat would remain which, in your opinion, how should it be eliminated if not by removing material by polishing? If the OP sends the barrel back, the manufacturer will never waste time trying to refine this barrel better but will send him a new one that will almost certainly have the same sign, deriving that sign from their tool or their cutting parameters. Seriously, I would like to see the performance difference between this barrel and a Glock 17 on the rest with a variety of ammo. And, in any case, a lower precision could be determined by other parameters that have nothing to do with that small defect, parameters such as the match between the barrel and the slide, the bore hole diameter, geometry of lands and grooves, etc. So the only way to understand the performance of this barrel is to shoot, shoot and shoot. If the accuracy is what the OP usually expects from himself or similar pistols, it means that the barrel does its job correctly. To have scientific and comparable results you should put the pistol on the rest, try different ammunition and compare the results with a gun of the same category.

 

[Scooter22]

Thread needs a.........

 

[Skylerbone]

You're not good at logic, are you? I really didn't want to keep pursuing this but since you went there:

Circular reasoning is where the premise of your argument assumes your conclusion. Which is exactly what you did here .

"Damaged bullets do not fly true" and "damage destabilizes them" are essentially the same statement.

Now, before you get any further wound around the axle let me say I am inclined to agree with your conclusion, its the logic that is faulty.

Logically correct would be something like "bullets must be uniformly made in order to fly true. Damage to a bullet that deforms it will affect it's accuracy." Here, the argument begins with a major premise that can be proven or disproven. The minor premise "certain kinds of damage will deform a bullet" is implied. Both lead to the conclusion about accuracy which must be true if the premises are true.

Since we know that manufacturing tolerances come into play and no bullet can be perfectly uniform either with itself or with others, and since we know that other factors affect accuracy as well, the question becomes how deformed does a bullet have to be before accuracy is significantly affected?

I suspect the answer depends on multiple factors such as diameter, weight, bullet profile and shooting context. For long range precision shooting, a smaller amount of damage will likely make a greater difference than for defensive pistolcraft.

I’m long winded enough, didn’t feel it needed further explanation. I don’t have a wind tunnel for verification but perhaps you could grant me that drag coefficient being higher (which would shed energy faster) and B.C. being lower (same result) means change in both POI and energy delivered on target.

When people change barrels on pistols I tend to think it’s for competition reasons or accuracy gains or both. Sort of defeats the purpose and it’s money wasted if that accuracy is not realized with the barrel.

 

[bdickens]

I’m long winded enough, didn’t feel it needed further explanation. I don’t have a wind tunnel for verification but perhaps you could grant me that drag coefficient being higher (which would shed energy faster) and B.C. being lower (same result) means change in both POI and energy delivered on target

That I can buy. That would be verifiable.

When people change barrels on pistols I tend to think it’s for competition reasons or accuracy gains or both. Sort of defeats the purpose and it’s money wasted if that accuracy is not realized with the barrel.

I believe in this case it was a conversion barrel.

 

[Hartkopf]

I put 200+ rounds of my range practice load (115gr plated over 4.1gr Titegroup) through the barrel and there were no problems. With plated bullets I wondered if anything strange would happen, like leading, but there were no signs. Accuracy is very close to my stock G17 with the same load. This wasn’t much of a test but there doesn’t seem to be any major issues.

I appreciate the in depth and thoughtful responses from some of you. I’m ultimately going to take the advice of post number 4 in this thread and “fuggetaboutit.”

 

[ontarget]

^^^And there we have it.^^^
Thanks OP, how about an update after about a thousand rounds? I'm curious how well it does for you in the long term.

 

[LiveLife]

OP can further test the barrel to see if accuracy from the barrel is acceptable with whatever ammunition OP uses to determine if the barrel should be kept or customer service contacted for replacement or refund.

200+ rounds ... 115gr plated over 4.1gr Titegroup ... no problems.Accuracy is very close to my stock G17 with the same load ... there doesn’t seem to be any major issues ... I appreciate the in depth and thoughtful responses from some of you.

Great.

I love happy endings.