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Post by bcelliott on Jan 6, 2018 21:34:18 GMT -5
Well, darn it, I forgot about the difference in .32-20 brass thickness. I do want to hold onto the Blackhawk, so I guess my options are now to have someone polish the chambers and size the throats, or get a new cylinder in .32-20 made, or both. Can anyone recommend the best smith for this?
Encore64, I have never had or held a factory Ruger revolver fitted like this GP100. It's almost as tight as my BFR. There is almost no endshake or side to side motion when locked up. My barrel-cylinder gap is just ok (0.005"), but the rest is perfection. Just compared the distance between chambers in both the Blackhawk (0.079") and the GP100 (0.100"). Does this mean that this GP100 is potentially stronger than the 8-shot Blackhawk? And is there room for eight .32-20 cartridges in a second cylinder?
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Post by bcelliott on Jan 6, 2018 20:24:06 GMT -5
Just a quick intro...I'm fairly new on here, but have been reading Lee's articles and forum threads for a while, and appreciate all the information and help that's offered here. I shoot single actions in quite a few calibers, but .32 caliber is one of my favorites. My very first handgun was my great grandfather's .32-20 6" Colt Police Positive Special 1st generation. My next .32 turned into my greatest gun regret--in college, after reading Ross Seyfried's article on the Buckeye and Marlin '94 in .32-20, I bought a Buckeye new in the box from the distributor. Soon after that, I needed money, and not even having fired it, I sold it. Someone in Lafayette, Indiana got a great revolver, and I really wish I still had it.
Fast forward to today...I own a 5.5" Single Seven, a 5.5" 8 shot Blackhawk, and just got a 5" blued half-lug GP100 in .327 Fed. The SS is limited in cylinder length, and will probably mostly be used with .32 S&W, long, and factory .327 ammo. The GP100 is great for longer COL loads (1.65"), and I have signed up for the Miha 135/140 grain Sledgehammer group buy. The Blackhawk is even better for long COL, allowing a total length of 1.69". However, the GP100 has very tight chambers and very uniform .313" throats compared with the Blackhawk, so I will leave the GP100 as is. The Blackhawk has looser chambers that are not well-finished and cause case sticking with factory ammo and has irregular throats. I'd also like to have a lever action in the same caliber, but I don't want a Henry (no loading gate). As I see it, I have three options for the Blackhawk:
1) Leave as a .327 Federal, but get chambers polished and throats corrected.
2) Rechamber to .32-20.
3) Rechamber to .321 GNR (.357 mag necked down).
How much velocity do I realistically gain with the .321 GNR with a 5.5" barrel? Case volume is more, but max pressure is less. It should do better in a carbine length barrel with slower powder though, and re-barreling a Rossi m92 or Marlin in .357 is straightforward. Any advice would be greatly appreciated.
BCE
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Post by bcelliott on Jan 4, 2018 0:11:07 GMT -5
I haven't been able to find case dimensions for the 321 GNR (neck length, shoulder angle). Anyone offer dies? I pick up my blued 5" 327 GP100 tomorrow. Sounds like it would be the perfect cartridge for a lever gun as well with a 32 barrel rechamber on a 357 mag Rossi or Win/Browning m92. Reeder has dies in stock. Thanks
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Post by bcelliott on Jan 3, 2018 21:22:24 GMT -5
No problem. Feeders 321 GNR (32/357 Mag) would fit in this package with a simple rechamber. I haven't been able to find case dimensions for the 321 GNR (neck length, shoulder angle). Anyone offer dies? I pick up my blued 5" 327 GP100 tomorrow. Sounds like it would be the perfect cartridge for a lever gun as well with a 32 barrel rechamber on a 357 mag Rossi or Win/Browning m92.
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Post by bcelliott on Dec 29, 2017 22:11:46 GMT -5
I talked on the phone to a rep at Lipsey`s who said that only a few hundred of each (327, 357, 44) of the blued GP100s were made in the first run. He also said that since demand was so high, especially for the 327s, they were having a second run made. I didn't ask how many units.
The Lipsey`s rep also took down my name and my local dealer and said they would ship a 327 blued GP100 there after the second run was complete. I went ahead and ordered one off of gunbroker because I didn't want to wait, but if it's as nice as people are saying, I might have to buy the second one as well.
I like the fact that the GP100 is almost as light as the S7, and its cylinder is almost as long as my 327 Blackhawk`s so I'll be able to load the Miha 140 grain bullets to full length. Anyone want to buy my S7?😁
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Post by bcelliott on Dec 12, 2017 21:11:21 GMT -5
I'd like one 4 cavity gas check mold.
bevancraigelliott at gmail dot com
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