Ruger Single Seven 327 Federal Magnum

My 5.5 came from the factory in perfect spec. Two Dogs custom front and a Bowen rear with Powers hammer and trigger gives a two pound crisp pull with factory springs.
Order some cases from Starline and reload for it. Ninety nine gr Sierr+a JHPs are the most accurate.
I had never had a Ruger single action apart before and it took ten hours to install the Powers parts which are exquisite. There is some fine work involved with small files to time the revolver real good, but I had the books the right gauges and tools to get a nice result and very fine accuracy at 25 yds and beyond.
 
So it sounds to me that right now, you have the perfect back woods carrying gun with 7 Rounds of very potent .327. Sounds like the perfect gun. Not only for the woods but household defense, etc, etc. Can you show a picture of it ?? 🙂😊
 
I'm back with an update.
Installed the Wolf #17 hammer spring for a range test.
Every round fired and not one 32 SWL primer pierced out of forty fired.
Twenty two rounds of full power loads fired
with zero pierced primers.
Twenty eight rounds of mid range loads fired with five pierced primers.
There were no other failures or jamming of the cylinder caused by the FP spot welding to the primer.
It seems my seven year quest to have a SS function properly is almost achieved.
I will polish down the FP a bit to try to eliminate the mid range load issue.
Just need to shoot some more ammo to see if the misfire problem will return when the FP bushing gets a bit dirty.
Thank you all for listening.:)
Bruce 51
 
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Just think Bruce, this gun truly has to be your favorite one.....a true labor of love.....🙂👍
 
I always just want my firearms to work properly so I can enjoy my range time. When it fires I really do like the weight, feel and accuracy of this SA revolver.
Just for giggles I loaded up two 32 SW cases with five grains of FFF under a 100 grain LFN Missouri bullet. Quite the show with a nice white puff and two well centered hits on the target.
I should have shot them last but I started with those two messy loads. Had to brush the chambers to continue shooting.
No pierced primers on those two cases.
(y)
Bruce 51
 
Well at least no pierced primers. I hear what you say about the weight and feel of the Single Six gun platform. To me for a woods gun it is the perfect size, but with your gun, the Single Six is shooting the .327 round. I think that with this gun, one has the almost perfect all around gun. IMO. Well, yours will be almost perfect when you are done "adjusting it". Keep going !!! 🙂👍👍
 
I'm back with an update.
Installed the Wolf #17 hammer spring for a range test.
Every round fired and not one 32 SWL primer pierced out of forty fired.
Twenty two rounds of full power loads fired
with zero pierced primers.
Twenty eight rounds of mid range loads fired with five pierced primers.
There were no other failures or jamming of the cylinder caused by the FP spot welding to the primer.
It seems my seven year quest to have a SS function properly is almost achieved.
I will polish down the FP a bit to try to eliminate the mid range load issue.
Just need to shoot some more ammo to see if the misfire problem will return when the FP bushing gets a bit dirty.
Thank you all for listening.:)
Bruce 51
Careful with this... I was told by a Vietnam Marine Sniper who got recruited to Seal Team 9 that filing down the firing pin on weapons will make them fully automatic... :)
 
I'm back with an update.
Installed the Wolf #17 hammer spring for a range test.
Every round fired and not one 32 SWL primer pierced out of forty fired.
Twenty two rounds of full power loads fired
with zero pierced primers.
Did I miss it,or have you mentioned what brand of primers are you using?
 
"I was told by a Vietnam Marine Sniper who got recruited to Seal Team 9 that filing down the firing pin on weapons will make them fully automatic... :) "

I do hope you were posting this as a joke.
 
Those six shot rotary magazines are down right dangerous.;)
All loads were tested with CCI small pistol primers.
I sure have had the opportunity to test many brands. CCI first as I have only had two fail out of thousands fired.
Bruce 51
 
I agree with contender, concerning base pin jump. There are many ways to skin a cat. I chose to deepen the groove in the base pin. I painted the pin notch with black magic marker. Re-installed base pin. Smacked it with a plastic hammer. Exposing the high spot, that I removed with a couple licks with a round file. Problem solved. No more base pin jump. Five minute fix for me.
 

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I just picked up a 327 single seven, it’s still sitting at the LGS for the three day waiting period here in Colorado. I’ve wanted to add one of these to the family for a few years. I’m hoping I don’t have any issues but I’m not too worried, I’ve never had any issues with a Ruger yet and plan on shooting it asap. Good thread, lots of info!
 
I just picked up a 327 single seven, it's still sitting at the LGS for the three day waiting period here in Colorado. I've wanted to add one of these to the family for a few years. I'm hoping I don't have any issues but I'm not too worried, I've never had any issues with a Ruger yet and plan on shooting it asap. Good thread, lots of info!
I had to open up the loading "trough" on mine.. cartridges would go IN ok ,but after firing they swelled up enough to where they would not come out! I do love it now, super accurate..congratulations, even if it hasn't a few flaws ,they will not be insurmountable, and it'll be worth it
 
Settup6, Good luck with your 327, although you should not need any luck with a Ruger Single Seven.....a very fine gun !!! 👍
 
I just picked up a 327 single seven, it’s still sitting at the LGS for the three day waiting period here in Colorado. I’ve wanted to add one of these to the family for a few years. I’m hoping I don’t have any issues but I’m not too worried, I’ve never had any issues with a Ruger yet and plan on shooting it asap. Good thread, lots of info!
Which model? I have the 8165?, blued 4-5/8 bbl. I’ve been on the lookout for a Birdshead stainless for years but haven’t run across one locally. They’re few and far between on GB, and way too expensive!
 
I had to open up the loading "trough" on mine.. cartridges would go IN ok ,but after firing they swelled up enough to where they would not come out! I do love it now, super accurate..congratulations, even if it hasn't a few flaws ,they will not be insurmountable, and it'll be worth it
My single-six 32 H&R has that same loading gate issue. It’s just annoying enough I’ll be opening it up too. I have really been bitten by the 32 bug, building up my collection!
 
Which model? I have the 8165?, blued 4-5/8 bbl. I've been on the lookout for a Birdshead stainless for years but haven't run across one locally. They're few and far between on GB, and way too expensive!
Not a birdshead, model 08160, and I thought I was buying at a really good price and then all the extra fee added up. It got way more expensive but I’m still glad I got it. Expensive but it’s forever!
Which model? I have the 8165?, blued 4-5/8 bbl. I've been on the lookout for a Birdshead stainless for years but haven't run across one locally. They're few and far between on GB, and way too expensive
 
I've been on the lookout for a Birdshead stainless for years but haven't run across one locally. They're few and far between on GB, and way too expensive!
I have an extra, but I suspect that it too would fall into the "way too expensive" category since it was too expensive even when I bought it 😲
 
Another very unsatisfactory range session today. I removed the Wolf #18 spring and installed the #19 spring which was working great two weeks ago. I have not cleaned the Single Seven as that is part of the test.

Anyway I had several misfires and a few pierced primers today. That seems to be a reoccuring issue with my revolver.
Always noted that the firing pin does not strike the primer in the center. It was that way out of the box.
I need to know if this is normal for the .32s or is it one of the reasons why I can't make this Ruger reliable.

Looking for answers as I have almost nothing left to try after seven years.

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Bruce
 
Why is not cleaning the gun part of the test or what function do you hope to improve / change with that?

In fairness, I didn't take time to read the 100-plus posts on 6 pages of the thread.

Edit to add: Ruger says it ain’t broke and you can’t fix it. At this point I’d try my luck calling Ruger again and hope to speak with someone who will listen to your story or ….. trade it for something else.
 
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Yes, I agree that you should at least try again to call and maybe someone there will listen and may have an answer or at least a suggestion for you. I remember when this thread started a while ago that you had issues with the gun. I would call Ruger again, and personally I would clean the heck out of that gun. It never hurts to clean any gun. Clean it good and try it again. At this point you have nothing to lose.
 
I had a first range session with my new Single Seven and I'm really happy, though I may change the red fiber optic front sight. My old eyes had a hard time focusing on it at an indoor range, it hopefully is better outside. I feel good about my first auction buy.
 

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Answering the question about not cleaning is simple. Shoot it until it quits to find a data point.
No need to read 100 posts to see what I have tried in the past. This is just post number thirteen.
Just need to read the first two to find why I continue testing.

Anyway after some research and reviewing my many tests I have found part of the reason why this has gone on so long.
The .32 SWL and the .32 H&R both have a rim thickness of .055". The 327 Federal is supposed to have the same .055" rim.
The 327 cases I have measure from .047"to .050". That does make a difference when testing springs and FP length.


As I mentioned in a previous post the .32 long cases all pierced probably because they are .005" closer to the breech face. Why the .327 primers pierce even one in seven could have something to do with the thinner rim and long FP.
Also having primers pieced may be why the FP bushing gets dirty so fast causing misfires.

My best solution would be to use the spring that worked well with the .32 long cases without piercing or misfires.
If the H&R cases have a .055" rim then I could shoot them exclusively.
Why is not cleaning the gun part of the test or what function do you hope to improve / change with that?

In fairness, I didn't take time to read the 100-plus posts on 6 pages of the thread.

Edit to add: Ruger says it ain't broke and you can't fix it. At this point I'd try my luck calling Ruger again and hope to speak with someone who will listen to your story or ….. trade it for something else.

I just finished cleaning the SS and would enjoy it going bang everytime without pierced primers.

If anyone has some 32 H&R cases could you please measure the rim thickness. If they are .055" I will order some and discontinue using 327 cases.

Kind of a long post. I'm just trying to be informative.

Bruce
 
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I’ve got some Starline 32 H & R measuring .052 to .053 as best I can measure. Federal 327 measuring.051 to .052. PPU S&W Long measuring.047. Not the easiest to measure. It seems like they should all be the same.
 
Thank you settup6 good to know that the 32 H&R rim is thicker. No cases available right now so start the waiting.

I see that your FP hits are off center like mine. I hope that you have zero issues with your revolver.

Bruce
 
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