Notes on the 32 mag, 327 Fed, and 32-20. SP101

[mohillbilly]

I believe my 4 5/8 and 5.5 are in and 7 1/2 soon . I'll find out Sat. I too like my pop guns Buckeyes , blue and single sixes color cases shorty s , and my eight shooter . They have a place in the safe . Cousins to those are .30 black hawk , .30 auto mag III , .30 Mauser C96 Broom handle , .32 ACP Colt hammer-less

[bushog]

I've already talked to and made a plan with the Smith that's gonna" cut mine up!

[jsh]

Ok not asking for loads here at all. But for those of you in the know of the single seven size actions, where do you deem a cut off point on loads. Every platform I have worked on the 32-20/30-20 and 32HR they are so over built the brass would go before the gun, TC and Blackhawk.
Am looking more at bullet weights than speed as there is very little out there info wise over 100 grain bullets. I have a 120 gc LBT that will fit to factory oal of the 327.
Figuring on using lil gun, 296, 2400 and WC 820.
Or just let the gun tell me.

[Fowler]

Jason from Lipseys says the 7 shots are actually stronger than 6 shot Single Sixes because the bolt notches are cut in between the chamber walls unlike the 6 shot cylinders. They are plenty strong I think, I know I ran some stiff 140gr loads in 32 mag brass through one last June without any signs of issues. But the gun will certainly tell you...

[Encore64]

There is a lot of good data out there to work with.  I have been gathering up all the various cast and jacketed bullets I could find to begin testing.  It's cooling off here in the deep south, so time to break out the chronograph and get to work.

I bought all three barrel lengths of the Single Sevens and had a Custom T/C 22" Carbine built on a Shilen blank so I could compare performance.  Waiting on a 7 1/2" FA-97, but going to start working up loads on the guns I have.

Think most of the factory stuff is loaded with faster burning powder for the original guns which were all short barreled.  I am betting with H110, AA#9, and Lil Gun the longer barrel will show it's muscle. 

Reading the Gunblast Reports, the 5 1/2" barrel was the fastest (factory ammo).  But, another Gunblast Report tested a 5 1/2" FA-97 and a custom 6 1/2" Single Six (handloads).  The longer barrel showed a considerable velocity increase.

Lots to learn about this new combo.  I had much rather do ballistics testing and load development than hunt anyways, so fine by me.

[2 Dogs]

Oct 21, 2014 18:12:44 GMT -5 jsh said:

Ok not asking for loads here at all. But for those of you in the know of the single seven size actions, where do you deem a cut off point on loads. Every platform I have worked on the 32-20/30-20 and 32HR they are so over built the brass would go before the gun, TC and Blackhawk.
Am looking more at bullet weights than speed as there is very little out there info wise over 100 grain bullets. I have a 120 gc LBT that will fit to factory oal of the 327.
Figuring on using lil gun, 296, 2400 and WC 820.
Or just let the gun tell me.

My custom Ruger FIVE shot 327 would run the 120 grain LBT (actually 118 grains as I cast them) at 1550 fps. I would point out the cylinder on the new Single Seven is some shorter, thus your 120 grain LBT is going to take up a bit more case capacity than mine did. Still, I would be willing to bet IF there was enough powder space 1400 fps would be achievable. I use H110 powder for my performance 327 loads.

[tek4260]

Oct 21, 2014 18:12:44 GMT -5 jsh said:

Ok not asking for loads here at all. But for those of you in the know of the single seven size actions, where do you deem a cut off point on loads. Every platform I have worked on the 32-20/30-20 and 32HR they are so over built the brass would go before the gun, TC and Blackhawk.
Am looking more at bullet weights than speed as there is very little out there info wise over 100 grain bullets. I have a 120 gc LBT that will fit to factory oal of the 327.
Figuring on using lil gun, 296, 2400 and WC 820.
Or just let the gun tell me.

I'll offer my standard answer, figure the seating depth of the bullet, mark the case and add powder up to that mark thus giving you a 100% density charge. Weigh that and use that for your W296.

[2 Dogs]

That would be a good start IMO.

[jsh]

Thanks gents. Cylinder pin is jumping with factory 100 grain loads in my 7.5. Need to get a handle on that now
Only shot 14 rounds through it tonight, steel plate. It wants to shoot for sure. Needs a bit of a massage to slick things up but promising none the less. As I had seen comments from others, it is a bit fickle on loading and ejecting. Have to get it just right for empties.
I have to agree with a majority of people. This is a darn good size for caliber revolver.
I sure wish I had paid more attention when the 8 shot Blackhawks were around.
Jeff

[vashooter]

I see the 8 shot Blackhawks have come down in price since the Single Seven is out, after shooting my single seven Im glad I did not pay a crazy price for the Blackhawk I almost did.

[tek4260]

Oct 22, 2014 22:31:00 GMT -5 jsh said:

Thanks gents. Cylinder pin is jumping with factory 100 grain loads in my 7.5. Need to get a handle on that now
Only shot 14 rounds through it tonight, steel plate. It wants to shoot for sure. Needs a bit of a massage to slick things up but promising none the less. As I had seen comments from others, it is a bit fickle on loading and ejecting. Have to get it just right for empties.
I have to agree with a majority of people. This is a darn good size for caliber revolver.
I sure wish I had paid more attention when the 8 shot Blackhawks were around.
Jeff

My buddy had the same 2 issues. He ground out the loading trough a bit and now it works as it should and is covered by the loading gate when closed, so that was an easy fix.

His also has the issue of base pin jumping. I had him remove the pin and verify that the latch "rested" at the same depth with or without the pin, so that wasn't the culprit. I believe he is simply going to get a Belt Mountain pin and go from there. In all honesty that is the best thing to do weather it is jumping or not. All mine have Belt Mountain pins and they will be installed on every new one I get, probably before it is ever shot.

[jsh]

Finally got the 7.5 apart to look at the pin latch. I compared it to the 5.5 and it does not even come close to going in far enough to engage the cylinder pin.
Send it back or do it myself? What say you gents?
Jeff

[AxeHandle]

For you guys that want real whizz bang 32s you need to save your $$$s and invest in a full size custom. Those little Single Six based guns will have a place but even if the cylinder can stand the pressure they will always have bullet limitations induced by cylinder length. A good custom Blackhawk based custom gives you more cylinder strength and all the length the cylinder window will allow. Snag a 327 Single Seven for the days you need such things, I've even got the 327 trifecta myself, but for the days you need some extra zip Gary Reeder can build you a 32-20/327 convertible that will get the job done.

[jsh]

Got a buckeye. I can go heavier faster in the 32-20 than the 327. I will leave the 327 SS7 and the 32 mag buckeye as is. I have no need to hotrod the little frame.
7.5 SS7 jumps the pin with factory 100 grain loads. Looked at it again this am and I believe it needs to go back as the hole is drilled shallow.
Jeff

[Encore64]

Stan, love my Single Sevens but ordered a FA-97 in 327 Fed / 32-20 WCF just for that reason and scoping.

Smaller than a Blackhawk, bigger than a Single Seven. Think it will be perfect.