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Post by bradshaw on Apr 7, 2020 19:41:17 GMT -5
Yes, my 8 3/8s is an S frame shipped June of 1968 ***** If Smith & Wesson made an S-frame, I’ll eat crow. During my visits to S&W, and with various personnel, and in conversations with S&W historian Roy Jinks, I recall no mention of an "S-frame.” As I tried to explain, there is a change from S-prefix to N-prefix in N-frame serial numbers. Let’s put it another way.... where in size does the alleged “S-frame” fit? This detail would clarify the whole question. David Bradshaw
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Post by Cholla on Apr 7, 2020 21:02:40 GMT -5
My mold is not a gas check mold. One solution that will allow you to use bullets from your mold are plain base gas checks. They're relatively inexpensive too. Is this your mold? Cholla
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Post by wildcatter on Apr 7, 2020 22:50:54 GMT -5
I to prefer the MH carbine bullet a 180 grain bullet at 174 grain with the HP, cast 70/30 with a bit of tin bullion for toughness. My preference for lead is I control the ability to expand, not in deer but with over 150 grains revered after 5 1/2 gallon water jugs I have faith it would work @ 1455 fps w/ excellent accuracy! I have a very accurate Bisley in 357 with a 5.5" barrel. This load is quite warm but safe in this revolver, and one of my most accurate loads in any caliber. I worked the load up thinking of trying to take a deer with it, and I am sure it would if placed properly. But as others have said, I have much more capable revolvers so I have not tried it yet, but a great yote killer. I would not use this load in a GP-100, and would caution working up slowly in the Blackhawk, most would consider it a FA 83 or Blackhawk only load! ***** wildcatter.... Hodgdon lists only the Nosler 180 Partition under .357 Mag with 180’s. Granted, cast bullets generally show a gain in velocity over jacketed for a given charge, often with somewhat less pressure. Nevertheless, here is what Hodgdon lists: .356 Mag, Nosler 180 Partition* 13.5/H110 = 39,100 CUP. * 15/Lil-Gun = 35,500 CUP. A call to Hodgdon may provide insight into your pressure zone. Meanwhile, the loads certainly point up a wide spectrum of strength among .357 revolvers. While it takes thousands of standard loads to show wear on a good revolver, it only take one injudicious load to wreck it. To raise a charge of slow powder elevates pressure at the same time. While pressure doesn’t spike in the seemingly spontaneous fashion of fast or medium powder, pressure nevertheless continues upward. With the Ruger Blackhawk, first signs include primer and case, not gun. 4140 with Ruger heat treatments is incredible steel. Nothing proves it more than the Blackhawk .357 Maximum. Yet, in the Rocks & Dynamite zone, to have some idea of pressure is not a bad idea. I appreciate your providing full load data. I do not approve of incomplete data; such secrecy appears lazy or fearful. David Bradshaw It would be nice to have pressure data for sure David, I am cautious and don't just look at primers, of case diameter at the web, I also pay close attention to extraction and that includes removing the cylinder on the single actions and removing each case with fingers only, to also help determine if I am getting any negative signs showing "dangerous" pressure. I also know if one would change the revolver this load is shot in, it could show a huge difference in pressure for that particular gun meaning it could be a dangerous situation instantly in a different Blackhawk. I have and will continue to watch top strap cutting, throat erosion, as well as barrel/cylinder gap, I do not take it as 100% safe, and any change on any of the things I mentioned will result in abandoning the load. I can remove these with my fingers and have loaded one brass Starline Nickle, 5 times just to see if it would fatigue with repeated loading's. Which I am aware should eject easier than brass cases. I also have to mention again this is a 174 grain bullet as cast, with a gas check and a relatively soft alloy, 70% WW/30% pure lead. It is also seated to a longer OAL with it's double crimp groove, for what that is worth, another unknown variable. But absolutely warn anyone this load is sure to be unsafe in most revolvers. I also would only run this type of load development using H-110/296 as it has shown over the years to be one of the most predictable in small increments at high pressures, with less fear of extreme spikes in small increases that some powders can produce. I just caution others reading this data to pat attention to the full warning that this is a very unsafe load for many revolvers. But in this gun, with these ES and accuracy it is a very good hunting load. Maybe even worthy of whitetail,,,,
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450ak
.30 Stingray
Posts: 458
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Post by 450ak on Apr 8, 2020 8:55:10 GMT -5
It’s an S prefix N frame.
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