Can 1 chamber shoot low on a 629-2

[Marcodo]

Just a quick question. I have a 629-2 mountain gun I bought used awhile back.

After shooting it off a bag I noticed that I would have a group of 5 then 1 shot was always low.

I thought it was my shooting, but now I wonder.

When the weather breaks I will shoot it again paying attention to the chambers to see if this is a consistent thing...but in the meantime...is this possible to be a chamber issue or was it for sure me?

 

[Gunhacker]

Do you notice if one round sounds different from the rest or that the fired primer on one rounds looks different from the rest, showing signs of over pressure?

When lighter bullets are fired from a gun that's sighted in for standard loads, they shoot at a lower point because they are moving at a higher velocity and exit the barrel earlier in the "recoil cycle" than a standard weight round.

So what I'm wondering is whether or not one chamber throat is tighter than the rest, causing pressure levels to be higher so that one round has a slightly higher velocity than the others, causing it to shoot low. How much lower is the one shot from the other 5?

Other than that, can't imagine anything else except "user error"

 

[arjay]

You can find out by numbering the chambers and shooting groups from each one.

 

[Jdavis]

Correct me if I am wrong but, I can't imagine how a revolver chamber would cause a bullet to make a different point of impact. It would seem to me that once the bullet has entered the barrel, the position of the barrel in relation to the target will determine the point of impact.

 

[Alk8944]

Yes, because of variations in alignment from one charge hole to the next it is very common to find 1 or 2 charge holes shhot out of the group formed by the remainder of the charge holes. It could shoot out of the group in any direction depending on how it is mis-aligned, but the hole that shoots out will always be out in the same direction. My 24-3 has one charge hole that shoots out of the group by something like 1 1/2" @ 25 yds.

 

[Realgunner]

Alk8944 is absolutely correct.

 

[colt_saa]

Just a quick question. I have a 629-2 mountain gun I bought used awhile back.

After shooting it off a bag I noticed that I would have a group of 5 then 1 shot was always low.

I thought it was my shooting, but now I wonder.

When the weather breaks I will shoot it again paying attention to the chambers to see if this is a consistent thing...but in the meantime...is this possible to be a chamber issue or was it for sure me?

Instead of you shooting it again, find an experienced shooting buddy or two and see if the revolver does the same thing for them.

 

[Marcodo]

Do you notice if one round sounds different from the rest or that the fired primer on one rounds looks different from the rest, showing signs of over pressure?

When lighter bullets are fired from a gun that's sighted in for standard loads, they shoot at a lower point because they are moving at a higher velocity and exit the barrel earlier in the "recoil cycle" than a standard weight round.

So what I'm wondering is whether or not one chamber throat is tighter than the rest, causing pressure levels to be higher so that one round has a slightly higher velocity than the others, causing it to shoot low. How much lower is the one shot from the other 5?

Other than that, can't imagine anything else except "user error"

All bullets are the same weights. Can't say I heard any differences in the sound...they were all loud.

User error always a possibility but this doesn't happen with any of the other guns I try this with.

 

[44wheelman]

Yup, had a Ruger Vaquero, 5 shots touching, one always high & right. Marked the chamber, became a "5" shooter... anoyed me so much I had to eventually sell it.

Take a sharpie with you next time & mark the offending hole & avoid it; see if your groups tighten up.

 

[Jdavis]

Yes, because of variations in alignment from one charge hole to the next it is very common to find 1 or 2 charge holes shhot out of the group formed by the remainder of the charge holes. It could shoot out of the group in any direction depending on how it is mis-aligned, but the hole that shoots out will always be out in the same direction. My 24-3 has one charge hole that shoots out of the group by something like 1 1/2" @ 25 yds.

I live and learn as I live and breath. Thanks for the information.

 

[BigBill]

No wonder my ruger vaquero was so cheap used. Yours wasn't in 45 long colt was it.

 

[alde]

Yes, because of variations in alignment from one charge hole to the next it is very common to find 1 or 2 charge holes shhot out of the group formed by the remainder of the charge holes. It could shoot out of the group in any direction depending on how it is mis-aligned, but the hole that shoots out will always be out in the same direction. My 24-3 has one charge hole that shoots out of the group by something like 1 1/2" @ 25 yds.

This is very helpful information. I have a 624-3 that will put 2 shots out of every cylinder an inch or so left at 15 yards. Will reaming the chambers be of any help? I will bring a Sharpie to the range next time.