The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Medium Bore Rifles Ruger African 275 RigbyGo | New | Find | Notify | Tools | Reply | |
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Yes. The 175 grain Hornady round nose bullet had a ballistic coefficient of .285 and a length of 1.208". If you plug that information into the Berger Twist Rate Stability Calculator along with a velocity of 2400 fps you get an SG of 2.82. A stability factor of greater than 1.5 or greater is the benchmark for adequate stability. This combination has more than comfortable stability. Mike | |||
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I am not all that worried. 1.4" is what the Prvi shoots in my other 7mm mausers that shoot MOA with hand loads I was testing a lot of loads yesterday and was kinda tired by the end. I was shooting: 275 308 300 win mag 470NE Hunting: Exercising dominion over creation at 2800 fps. | |||
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Well, I got out to the range today with my new Ruger African 275 Rigby, after I mounted the Leu. VX3 2.5-8 scope. After dialing it in, I put up a fresh target and shot a three-shot group before I packed up. It shot a 1.25" group at 100m, right where I wanted it, 3" high at 12:00. I was using Hornady 275 Rigby, 140 gr. factory ammo. I do not reload, but I'd think you who do, could shrink that group down by half maybe(?). Good shooting to you all. | |||
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From the range this morning. Two five-shot groups. One of the rounds did not register on the chrono. Brass indicated that the load is a little hot but extraction was easy.    Mike | |||
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Nice groups Mike! Thanks for posting. You have a nice shooter there and a good looking one as well. Congrats! Please keep us posted as you experiment with other loads. I think these Ruger 275s have promise. I would really like to take mine to Africa now. I'm still thinking 275 Rigby, 350 Rigby and 416 Rigby for a sweet three rifle battery.  | |||
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Nice looking, very functional rifle, but I already have a custom Mauser 7x57. Handloaders can easily, safely increase the listed velocities by over 100 fps. Pressures of American factory ammo is loaded extremely mild account of many old, weal rifles in that caliber. Norma ammo in 7x57 is great stuff. velocity is like a new car, always losing value. BC is like diamonds, holding value forever. | |||
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At least in my rifle (the one shown above) the Norma ammo did show ejector marks on the fired brass where there had been some flow into the ejector recess on the bolt face. Could just be that Norma brass is a little softer. I did not chrono the Norma rounds. Mike | |||
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Thanks! | |||
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Saw one of these at the LGS yesterday. It actually caught me by surprise not only because I didn't know about it, but because it was so handsome for a Ruger rifle! Lately, they seem to be more interested in making low-budget or "tactical" rifles as opposed to more classically-styled rifles. Very handsome, indeed. Also, the link the OP posted raised a valid point - until magnums came along, this was all the plains game rifle they really had. Worked great then, and there's no real reason to magnum-ize it. I find myself resisting that temptation with a number of cartridges. _____________________________________________________ No safe queens! | |||
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Who remembers these Interarms marketed rifles? This one, for sale here in UK is sadly missing its stand and fold rearsight. And, as on the Ruger "Rigby" the forend is too long IMHO. Definitely Ruger's re-interpretation is the better of the two.  A J Bell in Fulham. And those missing sights? He's not a clue where they are...I 'phone him about this rifle maybe a year plus ago. The more you look at it the more the overly swept bolt handle, the poorly done side safety all discourage you from thinking of buying it. | |||
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I have a friend with the Mark1 in 7x57, it was an item about 5 or so years ago as I recall.. ..Nice gun for sure. Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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They are great little rifles. OEM replacement sights are available and they are not expensive at all --- http://www.e-sarcoinc.com/mk10...leafsightwobase.aspx . | |||
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Thanks for that GR. I hope it helps someone out. Well worth knowing. Thank you for posting that. | |||
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My rifle came in a few days ago, so I took it out yesterday to try it. I put a Zeiss 2-7X on it. The load I started with was Rem. brass, Fed. 210 primer, IMR-4350 powder, and Nosler 160 gr. partition bullets. Here are the powder charges and 5-shot group sizes: 44.0 gr. 1.52" 45.0 gr. 1.44" (4 shots in 0.86") 46.0 gr. 1.09" I have used the 46.0 gr. load in my Ruger #1A with the 160 gr. Accubond and it worked well. With a group starting at 1.09" from a new barrel I am optimistic. | |||
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Nice! And FIVE shots.  | |||
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+1 !! | |||
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Beautiful Rifle. Wish they made more of them. Ruger used to make the African series in a magnum mauser action...if I recall correctly, in 416 Rigby and similar. How I wish I had bought one. If they would bring them back, maybe do a 404 Jeff...be still my beating heart. | |||
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I would...almost...bet my first born child Ruger will never again resume production of the RSM magnum rifle OR the Express model. They were just too different from the standard models with all the extra work involved. Ruger will continue with the African model with the proprietary 375/416 rounds. This Line up can easily be expanded to new calibers. On a separate note the .275 Rigby rifle was a great idea. It's a highland stalker at a fraction of the cost of a genuine Rigby. I'm glad Ruger is continuing to make some nice classic style guns despite the ugly market trends. | |||
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Actually Ruger manufactured some mod 77 mag length in 404s early on but the specs were wrong, so they pulled up production and went with the .416 Rigby.. BTW Ive seen a number of the magnum series Rugers in 416 Rigby for sale, not to uncommon, most of the early ones were to damn heavy (big barrel) and folks were offing them at a great price and still are..I didn't mind the heavy part, but they sure left a lot of extra wood on the stocks IMO.. Ruger has come a long ways with the African model.. Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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While some quibble at the price of this .275, to me it is more about "homage" than mere economics. You have to be passionate about such matters for this to make sense. There is hope, even when your brain tells you there isn’t. – John Green, author | |||
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Exactly! I already own a few 7x57s and love them, however, Ruger has hit a homerun with two great ideas: the super African model, and the barrel stamped 275 Rigby. Hornady has taken it a step higher by offering 275 Rigby stamped ammo. This certainly pays "homage" to this great cartridge and all of the Africana literature and famous hunters who have used it in the past, even though it is the same 7x57 round. Many of us already own 416 Rigbys, and with this purchase, we are 2/3s of the way to a Rigby only (3) rifle battery. Only thing missing is the 350 Rigby. That would be another great tribute to pay homage to another historic cartidge. Others will point out our 35 Whelens have the same ballistics of the Rigby, but it wouldn't be the same. I would love to take these three old famous African cartridges on safari. Anyone else interested in Lipseys or Ruger producing a 350 Rigby to complete this collection (and hopefully Hornady producing the ammo)? I know, I know, but we can hope. Or write... | |||
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I wish that Rigby had adopted the 9.3x62 and called it something like the 350 or 360 Rigby. They could have loaded it with a lighter bullet at higher velocities if they wished (Not my preference). I'm guessing the big 350 case was designed with cordite in mind. The 9.3x62 case is probably too small to get optimal performance with cordite. I defer to Nostalgia a lot, but the 350 Rigby is a classic British round that I just can't bring myself to pine for. However, I do recognize it's outstanding performance potential, and certainly can't fault anyone for wanting one. Original 350 Rigby rifles are about as sexy as they come! Matt FISH!! Heed the words of Winston Smith in Orwell's 1984: "Every record has been destroyed or falsified, every book rewritten, every picture has been repainted, every statue and street building has been renamed, every date has been altered. And the process is continuing day by day and minute by minute. History has stopped. Nothing exists except an endless present in which the Party is always right." | |||
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Well, took out the 275 Rigby today for its second range sesion, along with other rifles. On its first session I shot a month ago, I shot a 1.25" 3-shot group @ 100m. Today, I shot a 1.625" 5-shot group @ 100 yds. I am pleased with the accuracy of this rifle. Four of the shots (#1,2,4,5) were a 1.125" group. Shot #3 opened it up to the larger group. I let the barrel cool between shots, so shot #3 cannot be blamed on a hot barrel warping the stock; just my bad shooting.  I was shooting factory ammo, Hornady 275 Rigby, 140 gr. Interlock. I think this Ruger African may hold some promise. | |||
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nice buy on the whelen too | |||
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Thanks buckeyeshooter. Yeah, I was pretty excited when I saw the 35 Whelen, let alone the original price. When he made me an offer that I couldn't refuse, it just got more refuse-resistant! | |||
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Well, glory be. They figured out how to blue the bolt handle again. Thank goodness. | |||
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Did some more testing. Bought a Timney trigger, fitted it last night and set around 2 3/4# Prvi cases, 2x fired, FL sized Federal 210 primer 139 SST 40.0gr IMR 4064 OAL 3.062" 3 shot group of 0.602" Let the barrel cool Second string was just 2 shots (thought I brought 6 rounds  )0.864" Hunting: Exercising dominion over creation at 2800 fps. | |||
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Thanks for posting Duckear. Nice shooting! Sounds like you're on to something there. Keep us posted on your further developments. | |||
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Wonder if Hornady is loading the 275 Rigby ammo to the same specs as the 7x57. Shoot Safe, Mike NRA Endowment Member | |||
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I would guess they are. Hunting: Exercising dominion over creation at 2800 fps. | |||
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The new trigger really helps. I may revisit some previous loads just to see what difference the lighter trigger made. IMO, the Timney trigger is THE way to go for a Ruger if you elect to replace the factory trigger. They do take a bit of patience to fit in order for the safety to work, but a small file and a slow approach = success. Hunting: Exercising dominion over creation at 2800 fps. | |||
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The .275 Rigby getting it done . . .   Mike | |||
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Very nice! Embarrassed to admit that mine is still waiting to be scoped... ------------------------------- Some Pictures from Namibia Some Pictures from Zimbabwe An Elephant Story | |||
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MJines, Congrats!! I have not gotten around to putting a scope on mine either. | |||
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Excellent, Mike. That's a nice buck. There is hope, even when your brain tells you there isn’t. – John Green, author | |||
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Thanks for posting Mike. Wow, nice animals, a really nice buck, and a beautiful rifle. Love it when everything comes together like that! I've GOT to get mine out hunting... | |||
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The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Medium Bore Rifles Ruger African 275 Rigby
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