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Post by boolitdesigner on Apr 15, 2019 16:48:56 GMT -5
Currently, I'm using the 50 cal / 20mm surplus powders in some very unusual ways. ^^^This... anyone using rifle powders to achieve mid-range loads in magnum handgun cartridges with near 100% load density? Been interested since John Ross posted on the topic but have not delved into it. Mostly I'm doing low velocity loads in small rifle cartridges, but you can do the same with them in the larger capacity handgun cartridges as long as you use 100% load density. DuPont used to put out yearly loading guides showing what their powder lineup did from fast to slow powders in a light brown manual.
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Post by coldtriggerfinger on Apr 16, 2019 0:52:09 GMT -5
I do remember years ago I loaded some 416 Remington ammo with 4831 with a 400 gr bullet so I could get the velocity down to 2150 fps. Kind of duplicating the 404 Jeffrey. They worked great. Huge amount of difference in recoil between a 400 gr bullet @ 2400 fps And the same bullet @ 2150 fps. Nice deer round also. Eat right up to the bullet hole.
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Post by needsmostuff on Apr 16, 2019 9:05:08 GMT -5
I don't see any reason I couldn't load large revolver cases with rifle powder to get less pressure and velocity. A full case with upper-mid level speeds/pressure has often been my goal in large for caliber pistol cases ,,, say 32-20. I have dabbled in the land of slower than H110 with AA5744 ,1680,#7and as far as 2015. All shoot well with a full case happening before ANY pressure issues in a strong gun. Main down side I've found is sometimes copious amounts of unburned powder. O yeah , you need a really tight crimp when burning the slow stuff. During the powder crisis I did briefly play with a slowish surplus powder that came in a big white 1 gallon jug. Basically fill up a rifle case , any rifle case , plug in a bullet and shoot . Most speeds came out about 100 to 200 FPS slower than max loads in manuals. Never any pressure signs BUT,,,, Man it made barrels HOT !!!! Shoot 5 shots and you could not pick up the gun buy the barrel ! Shoot 10 and I think you could lose some hide. Still have some left but I quit shooting it as I started to worry about barrel erosion,,,,,,
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edk
.375 Atomic
Posts: 1,105
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Post by edk on Apr 17, 2019 6:02:13 GMT -5
I have dabbled in the land of slower than H110 with AA5744 ,1680,#7and as far as 2015. All shoot well with a full case happening before ANY pressure issues in a strong gun. Main down side I've found is sometimes copious amounts of unburned powder. O yeah , you need a really tight crimp when burning the slow stuff. Assume the unburned powder problem gets gradually worse as a function of selecting progressively slower burn rate powders - hopefully not too bad up to maybe #7. Can certainly expect 4350 to be a big problem even though IMR listed it as suitable for a handgun! Was any excessive velocity deviation observed if chrono'd or accuracy affected as a result? Probably not loads for a snubbie but would do better in longer barreled guns...
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Post by boolitdesigner on Apr 17, 2019 9:07:03 GMT -5
Apr 17, 2019 6:02:13 GMT -5 edk said: Assume the unburned powder problem gets gradually worse as a function of selecting progressively slower burn rate powders - That would depend on just how you ignite the powder. Progressively going to hotter primers or by using duplex loads opens up a wide area to learn and experiment with.
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Post by coldtriggerfinger on Apr 17, 2019 21:03:00 GMT -5
Stick a Fed215 in the primer pocket ;-) That otta get it burning 🙈 Just kidding! A large pistol magnum primer and a good Lee Factory Crimp should do it. I have a bunch of Rl 17 I could use.
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Post by doninnh on May 4, 2019 21:11:24 GMT -5
Well back in the early 1950 I had the chance to gather a lot of powder from 20 mm inert rounds we used it in 30-338 guns cause it seemed to be 4831 shot a lot rounds and traded lots of it to others to use in their 30-338(pre 1963).seemed to workout well. Had mostly used it up by the time 300 win came out shifted to 4350 about then. we where careful with loads in working up loads as Murphy lurks. Next 20/25 years loading for replacing ammo and plinking maybe the closest to a wildcat was 125 gr varmit in a 30 carbine Blackhawk Got interested in smallbore rifle revolver pairs hornet k hornet bee mashburn bee and such. The mashburn round does not have a lot of data around so things go slow. Fired a bunch to ff then started to get some bad primers messing up the tests Pulled about 60 rounds. Started testing loads again began to show pressure signs after 6 or 7 so quit. Its about 3/4 hours to the range in FL so I always have something to shoot besides the loads I'm testing. I brought a Ruger 223 REM mkll allweather which I had fired maybe between 50/60 times to use up the range time I had bought It had been idle for about a year. First round thing blows up splits stock blows follower out of gun. Locks up action like it one piece, spills about a cup of blood Old Murphy Lurks. Pull a couple rounds from lot plinking rounds with 4895 could not double it up..
So be sure to wear glasses and be careful cause he waits have a nice day Don K
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Post by coldtriggerfinger on May 5, 2019 15:07:49 GMT -5
I also have a bunch of Reloader 7 . I did use it some in a Blackhawk 45 Colt I had. I was shooting 255 gr Berry's plated bullets in it. Also used it with the 360 gr Oregon Trail boolits. I charged the cases with the same weight as the max book H110. I don't remember what it chronographed but it felt like shooting factory low pressure 45 Colt ammo with the 255s. The 360 gr did Chrony at 900ish fps The older I get the more cautious I become. I still haven't tried any HS6 powder. I stay away from 2400 and a bunch of others. It would be nice to have a temp stable powder to use instead of H110/296 . In the 480 I'm going to try the 10 gr Unique with the Mihec 477/640 boolits. Hopefully I'll have acceptable drop differences between the different loads I shoot now that I've bobbed the barrel and installed a new front sight.
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