The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Big Bores 505 GibbsGo | New | Find | Notify | Tools | Reply | |
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Well I found a couple loose 505 cartridges in my gun room and was reminded again just how huge they are. I have not hunted with the caliber yet rifle is at AHR for a facelift. Had a box of 470 NE sitting on table (thanks webfeet) And compared the two. 505 is definitely huge. Is it the biggest repeater cartridge? If you wanted to hot rod it how far can you go with that case capacity? Looking forward to getting it back I almost forgot I had one  White Mountains Arizona | ||
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Yes, Cordite strands took up a lot of room in a case. Just look at the difference between a 416 Rigby and a 416 Remington. These cartridges were designed in a different time. | |||
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As far as hot-rodding the 505 Gibbs goes, yes, it’s a huge case as Biebs pointed out, and it can be loaded hotter. The question may be, do you want to? My CZ 505 Gibbs weighs 9.5 lbs. and has the factory supplied (2) mercury recoil reducers. I had the barrel cut from 25” down to 22”, so lost some weight there. I shoot Woodleigh 600gr. soft & solids. I started at 2,300 fps, and found no joy. I then went to 2,150 fps, and it’s a true handful, for me at least, but I can shoot it accurately. All the joy I can handle. Of course, one can increase the rifle weight, but I choose not to, as I hate carrying rifles that weigh 10lbs. or over. That’s just me I guess. I’m 67 and weigh 160 lbs. YMMV. | |||
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Agree, 570g at 2300 fps from my 500 Jeffery is still fun for me anything more fun index approaches zero. The 505 Gibbs holds more powder so for the same velocity it will kick a bit more. I've seen load data for the 505 Gibbs shooting a 600g bullet at 2500 fps Ouch! Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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Where can I buy cordite? 577 BME 3"500 KILL ALL 358 GREMLIN 404-375 *we band of 45-70ers* (Founder) Single Shot Shooters Society S.S.S.S. (Founder) | |||
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If any of you gents need .505 brass, I have three bags of new brass. PM if interested. Cal _______________________________ Cal Pappas, Willow, Alaska www.CalPappas.com www.CalPappas.blogspot.com 1994 Zimbabwe 1997 Zimbabwe 1998 Zimbabwe 1999 Zimbabwe 1999 Namibia, Botswana, Zambia--vacation 2000 Australia 2002 South Africa 2003 South Africa 2003 Zimbabwe 2005 South Africa 2005 Zimbabwe 2006 Tanzania 2006 Zimbabwe--vacation 2007 Zimbabwe--vacation 2008 Zimbabwe 2012 Australia 2013 South Africa 2013 Zimbabwe 2013 Australia 2016 Zimbabwe 2017 Zimbabwe 2018 South Africa 2018 Zimbabwe--vacation 2019 South Africa 2019 Botswana 2019 Zimbabwe vacation 2021 South Africa 2021 South Africa (2nd hunt a month later) ______________________________ | |||
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I have read here on AR that 2650FPS can be reached with a 600 grain bullet  | |||
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Wow. Impressive. I think 600 at 2300 should be adequate always good to know you can do more but agreed it’s good enough by far as is. I have dies but my factory loads are milder than that White Mountains Arizona | |||
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The 505 is indeed a hold over design from a previous era and in terms of ballistic and piezometric efficiency it reached a ceiling and limit. The limiting factor was the characteristics of cordite it was originally loaded with. The 500 Jeffery at the time as comparison an example of why the discovery / development of modern propellants were so pivotal in the evolution development of modern cartridges ( Decrease is caliber, increase in SD and thus increase in BC, huge increase in ballistic efficiency and finally the ability to manipulate piezometric efficiency ) | |||
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You could sure stuff a lot of powder in it. I guess the wildcats based off the case are taking advantage of it for sure p White Mountains Arizona | |||
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This may be a strong case (pun intended), for developing a “light load”. But, if you want a true magnum....this “will” fill that void in your life! memtbYou should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel | |||
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Glad I can get 3 down in my CZ. Quite a feat White Mountains Arizona | |||
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CALL AND SEND US MONEY WE CAN ADD MORE Anyway it matters not, because my experience always has been that of---- a loss of snot and enamel on both sides of the 458 Win---- | |||
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LIKE 5 DOWN Anyway it matters not, because my experience always has been that of---- a loss of snot and enamel on both sides of the 458 Win---- | |||
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You only need one right? So how much to add 2 more? $1000? White Mountains Arizona | |||
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I was thinking 3 is plenty  Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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If you need more than 3 down, just hire two PH's. You could do a 425WR with the attached mag for extra DG rounds. Maybe we need a belt fed 505? 577 BME 3"500 KILL ALL 358 GREMLIN 404-375 *we band of 45-70ers* (Founder) Single Shot Shooters Society S.S.S.S. (Founder) | |||
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Had to get The Perfect Shot -Dinosaur Edition when it came out...505s and 50AEs...  ------------------------------- Some Pictures from Namibia Some Pictures from Zimbabwe An Elephant Story | |||
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Only source today would be to buy up old military 303 British ammo, pull the bullets and the cordite strands. There were different varieties of cordite, some in strands like uncooked spaghetti pasta, others was "chopped" cordite used in revolver cartridges, presumably was just the strand cordite chopped to resemble some of our smokeless powders today, and there was also "flat or ribbon" cordite, supposedly giving better performance than the usual strand variety. Although there is published data on cordite charge weights for many of the old British nitro cartridges, without knowing what type or exactly what length of cordite was used in the various cartridges it would be a hit and miss affair if loading today with cordite. Also not sure if cordite deteriorated with age too, any around today would be very old now. | |||
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Another option if really need another round, I ve not with my 505 for buffalo, is to pull the bolt, load a round on it, and push it in on top of the others, assuming it’s a CRF. | |||
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ps I use 144 grains RL 33 | |||
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I had a 505 Gibbs Improved at one time, other than bragging rights that 7.5 lb. monster donated a black eye and a couple of bloody noses,ane a pair of broken glasses. I sent it down the road to some other poor bastard who informed me he had lots of recoil tolerance, I saw he had an add in shotgun news about two weeks later!! Yep, the bragging rights were actually the best thing about that gun..I later acquired a 13 pound std. 505 Gibbs, didn't much care for it either..Guess my recoil tolerance toped out at the .470 and that was iffy, and my "lug around for 5 to 15 miles a day" settles at about 10 lbs max and 9 lbs. keeps me happy. My testosterone leaked out at about age 80. Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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Great idea! Unless I make my own. I just want to shoot a big ass case full of cordite and go shooting on a crisp morning just to say the words "I love the smell of cordite in the morning" and know what it smells like in the morning.
577 BME 3"500 KILL ALL 358 GREMLIN 404-375 *we band of 45-70ers* (Founder) Single Shot Shooters Society S.S.S.S. (Founder) | |||
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Plus one up the pipe
White Mountains Arizona | |||
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FUN cartridge, I tried 525gn @ 2500 (Kills pigs well), and 600gn at 2300. which worked OK on Buff, but showed a bit to much expansion, so I now prefer a more practical 600gn @ 2150 for Buff (or anything), and I load the 525gn down to the same velocity with 105gn AR2208 (Varget), and a foam filler. However, I found my barrel is actually 0.507, so needs a bit more powder than a standard 0.505 A true 505 barrel will get a bit more velocity with that load. I have fired well over 1000 rounds since 2008 out of my GMA now. | |||
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That is a lot of lead. | |||
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And a lot of recoil, you have my admiration. Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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Boomstick, got a flash for you, you wont remember the next day..punch drunk doesn't always apply to boxing!  Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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Hey Charles, its not just for dinosaurs anymore. It works fine on little stuff too!   "The difference between adventure and disaster is preparation." "The problem with quoting info from the internet is that you can never be sure it is accurate" Abraham Lincoln | |||
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What's that funny looking thing at the end of the barrel? Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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Cal, I sent a PM. Karl Evans | |||
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That little miracle of engineering allows me to hunt with the Hammer of Thor yet absorb the recoil of a 30-06 at best. PRICELESS! "The difference between adventure and disaster is preparation." "The problem with quoting info from the internet is that you can never be sure it is accurate" Abraham Lincoln | |||
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I see that! ------------------------------- Some Pictures from Namibia Some Pictures from Zimbabwe An Elephant Story | |||
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Nice! Good to see folks shooting the big 50s Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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JCS271 What loads/bullet do you use for moose and bears? How is the reaction when they get hit?  I still remeber the effect on moose when they got hit straight in the shoulder with my old (now sold) .460 wby loaded with 500 grain hornady rnsp at 2650FPS. | |||
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I shot the Moose at about 60 yards through the chest with Factory Norma ammunition. 600 grain woodleigh. He simply staggered and fell over. It was very impressive. The bear was about 30 yards with hand loaded 525 grain hornady Bullet at 2350 ft per second. Took him through the chest and just crushed him. "The difference between adventure and disaster is preparation." "The problem with quoting info from the internet is that you can never be sure it is accurate" Abraham Lincoln | |||
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A Gibbs at anything over 2500 fps is absolutely obnoxious... DRSS Member | |||
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Agree. I find with my 500 Jeffery, a 570g TSX at anything over 2300 fps tends to get less enjoyable. At 2500 fps, downright painful. Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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Boom Stick, that ain't the smell of cordite your smelling early in the morning if you shoot it more than once!~   but not to worry carry a clean pair of shorts and pants to drive home in..Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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Wayne messaged me and said my rifle was done at AHR. Sent me a nice 5 shot group pic at 50 with the new front sight. Got the number 1 plus fixed a round popping out of the magazine issue. Now this rifle should be good to go......... White Mountains Arizona | |||
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