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 Post subject: First range trip with the ruger african 275 rigby.
PostPosted: Sat Aug 17, 2019 7:05 pm 
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Finally got to do some shooting today. Was okay so far I guess. I struggled with the 6 power a little bit. And the trigger is a tad bit heavy. Tonight I finally got the box magazine where it isn't binding anymore, and can move it around. They say that usually helps alot. The floor plate was hitting on it pretty hard. Also got the last of the high spot out of the barrel channel tonight, so hopefully tm after church will be better. I only had PPU 139 gr and federal power shock 140 gr to try. So far it's a pretty solid 1.5 moa gun, which honestly is plenty enough for my hunting. Maybe I can entice it down a touch more. I do believe it is throated and twisted for the heavier bullets though. So I'll be loading some 160-175 gr bullets within the next week. The rifle handles amazing though, and love the feel of the stock. Oh that .406" group I'm pretty sure was a fluke lol. Image

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Sat Aug 17, 2019 7:31 pm 

Joined: Thu Nov 05, 2015 7:43 am
Posts: 332
That is good groups for just two different factory loads. One for sure. Given time and more trial and error You'll find something it really likes. Hope you get to punch your tag with it this year! Dan.


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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Sat Aug 17, 2019 8:57 pm 

Joined: Wed Nov 08, 2006 2:49 pm
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Location: Northern British Columbia
It does look as if you're moving in the right direction. At least you've made it to the range. That is more than I've done for some time. Looking good so far.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Sun Aug 18, 2019 3:47 pm 
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So went back today after church. I managed to get the magazine box fully floated where you can move it with your fingers. The PPU and federal 140 soft points were about the same so no change. I did manage to find a box of sellior and bellot 140 grain round nose soft points, and I decided to shoot them last. Was very happy with them, and seems like a whole new rifle lol. Plus it's a good looking bullet for $18.99 a box, but not sure if they still make it. All I saw on midway from S&B was 173 grain round nose. Anyway here are the groups. ImageImage

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Sun Aug 18, 2019 3:49 pm 
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Will be ordering dies tonight. Right now I'm planning on the 160 grain speer hot cor. Everything I've read says the Rugers in 7x57 are fast twisted and throated for heavy bullets. So I'm hoping the 160 gr will do good, but deep down I'm wanting to try some 175's lol.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Sun Aug 18, 2019 9:15 pm 

Joined: Wed Nov 08, 2006 2:49 pm
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Location: Northern British Columbia
S&B has always appeared to be excellent ammunition. The 140 grain may just be the ticket with your rifle.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Sun Aug 18, 2019 9:46 pm 
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I was just wondering, isn't the .275 Rigby just a fancy way to say 7x57mm?
I could be wrong.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Sun Aug 18, 2019 9:50 pm 

Joined: Sat Oct 23, 2010 8:04 am
Posts: 2489
Location: Delta Junction, AK
HAWKEYESATX wrote:
I was just wondering, isn't the .275 Rigby just a fancy way to say 7x57mm?
I could be wrong.


Nope, you're right on the money. The Rigby people "adopted" the 7x57 and called it the .275 Rigby.


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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Sun Aug 18, 2019 9:54 pm 
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HAWKEYESATX wrote:
I was just wondering, isn't the .275 Rigby just a fancy way to say 7x57mm?
I could be wrong.

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Yes it is the absolute same cartridge.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Sun Aug 18, 2019 10:00 pm 
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DrMike wrote:
S&B has always appeared to be excellent ammunition. The 140 grain may just be the ticket with your rifle.
It definitely shoots better that the PPU 139 or federal 140. Plus the round nose is actually quite attractive. I'd like to see how the perform on deer. Then again any cup and core bullet will probably perform beautifully at 2650 fps. Really wanting to try these 160's at that same speed. Tonight I ordered Redding dies and the 160 hot cor. And a rifle basix trigger. Found data for my favorite powder RL16. They were getting 2675 fps with 18 1/2" barrel. So I should get in the 2600's with a 24" barrel without much fuss. I'll only be using this rifle in our greenfields with are 120 yards or less. Figure that bullet and speed combo should work very nicely.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 5:08 am 
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Location: SW Virginia
I’d imagine for your intended use, that will be just dandy. Looks as if it wants to shoot.


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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 9:31 am 

Joined: Sun Dec 24, 2006 12:20 pm
Posts: 29372
Location: Northern Virginia
Cleveland48 wrote:
DrMike wrote:
S&B has always appeared to be excellent ammunition. The 140 grain may just be the ticket with your rifle.
It definitely shoots better that the PPU 139 or federal 140. Plus the round nose is actually quite attractive. I'd like to see how the perform on deer. Then again any cup and core bullet will probably perform beautifully at 2650 fps. Really wanting to try these 160's at that same speed. Tonight I ordered Redding dies and the 160 hot cor. And a rifle basix trigger. Found data for my favorite powder RL16. They were getting 2675 fps with 18 1/2" barrel. So I should get in the 2600's with a 24" barrel without much fuss. I'll only be using this rifle in our greenfields with are 120 yards or less. Figure that bullet and speed combo should work very nicely.

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Before you replace the trigger, try a trigger spring from MCarbo. I have swapped all of my Rugers over to this 5 dollar spring and lightly honed the engagement surface and it's netted me a nice 2.75/3lb pull on them all.

On the accuracy front, don't fret it too much yet buddy. If it's like the other Ruger's I have owned, you are just smoothing it out a little and it'll continue to get better as that barrel smooths out and shoots in some. I usually clean them liberally with JB's for the first few times and have had excellent luck with them like that.

RL17 has worked really well for me and the 7x57 from 140's to 160's and I am sure it would be just as good with the 175's. If anyone with ears on has QL handy, ask them to run some numbers with the 7x57 to 60K PSI and the 175 Partition, I think you will be pleasantly surprised just how much of an animal it is.

Looking at your groups with the factory ammo would make me very happy to be honest with the run of the mill factory stuff they make for the 7x57, with good loads and the work you have done, I think you're well on the way to an excellent hunting rifle. That 6X will grow on you. Look for some targets with larger, matte colored aiming points and I bet you'll appreciate them.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 12:04 pm 
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SJB358 wrote:
Cleveland48 wrote:
DrMike wrote:
S&B has always appeared to be excellent ammunition. The 140 grain may just be the ticket with your rifle.
It definitely shoots better that the PPU 139 or federal 140. Plus the round nose is actually quite attractive. I'd like to see how the perform on deer. Then again any cup and core bullet will probably perform beautifully at 2650 fps. Really wanting to try these 160's at that same speed. Tonight I ordered Redding dies and the 160 hot cor. And a rifle basix trigger. Found data for my favorite powder RL16. They were getting 2675 fps with 18 1/2" barrel. So I should get in the 2600's with a 24" barrel without much fuss. I'll only be using this rifle in our greenfields with are 120 yards or less. Figure that bullet and speed combo should work very nicely.

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Before you replace the trigger, try a trigger spring from MCarbo. I have swapped all of my Rugers over to this 5 dollar spring and lightly honed the engagement surface and it's netted me a nice 2.75/3lb pull on them all.

On the accuracy front, don't fret it too much yet buddy. If it's like the other Ruger's I have owned, you are just smoothing it out a little and it'll continue to get better as that barrel smooths out and shoots in some. I usually clean them liberally with JB's for the first few times and have had excellent luck with them like that.

RL17 has worked really well for me and the 7x57 from 140's to 160's and I am sure it would be just as good with the 175's. If anyone with ears on has QL handy, ask them to run some numbers with the 7x57 to 60K PSI and the 175 Partition, I think you will be pleasantly surprised just how much of an animal it is.

Looking at your groups with the factory ammo would make me very happy to be honest with the run of the mill factory stuff they make for the 7x57, with good loads and the work you have done, I think you're well on the way to an excellent hunting rifle. That 6X will grow on you. Look for some targets with larger, matte colored aiming points and I bet you'll appreciate them.
Thanks man! Would anyone happen to know what a good torque setting on the action screws would be since its bedded?? I know its gorilla tight with the factory set up, but hoping since its bedded I could back it down some. I dont even have a torque wrench that goes to the 95 in-lbs ruger suggest lol.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 12:38 pm 

Joined: Sun Dec 24, 2006 12:20 pm
Posts: 29372
Location: Northern Virginia
I’d try 30 Back and 45 front.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 2:45 pm 

Joined: Sat Dec 11, 2010 10:13 pm
Posts: 1384
First off, I'll second the use of Re17. I get good velocity and accuracy with the 150 gr. Nosler partition.

Second, and this is from a post by John Barsness elsewhere on safe attainable velocities in a 7x57.

"Here's an approximate list for 7x57's with at least 21-22" barrels:

120-grain: 3100 fps
130:3000
140: 2900
150: 2800
160: 2700
175: 2550

So far I haven't found any new and magic powders that will beat those muzzle velocities at "modern" pressures. And there's no reason to anyway."

My data with Re17 and the 150 gr. Nosler partition. Rifle used was a Winchester M70 Featherweight, 22" barrel. Scope a Burris Fullfield II 3x9 set at 9X.

1. 47.0 gr. 2710 FPS ES 26 FPS Group a one inch triangle.
2. 47.5 gr. 2751 FPS ES 19 FPS Group 1 1/8x1x1/2" The one out was probably shooter error.
3. 48.0 gr. Missing FPS ES Missing FPS Group 1x3/8" As in group 2 the flyer was to the left of the main group. Velocity missing due to chronograph malfunction.
4. 48.5 gr. 2847 FPS ES 39 FPS Group 3/4x 1/4" two literally in the same hole and the outlier 3/4" above the hole.
4. 48.5 gr.

Hope this helps.
Paul B.


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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 3:59 pm 

Joined: Mon Feb 27, 2006 7:09 pm
Posts: 4613
Location: Western Montana
Sure looks like it's gonna be a winner! If you want, I have been able to find Hornady brass marked 275 Rigby if you wanted some of those for well, just because.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 4:04 pm 

Joined: Sun Dec 24, 2006 12:20 pm
Posts: 29372
Location: Northern Virginia
Dang... sure makes me want one...

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 4:07 pm 
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Joined: Tue Jul 28, 2015 11:10 am
Posts: 1322
PJGunner wrote:
First off, I'll second the use of Re17. I get good velocity and accuracy with the 150 gr. Nosler partition.

Second, and this is from a post by John Barsness elsewhere on safe attainable velocities in a 7x57.

"Here's an approximate list for 7x57's with at least 21-22" barrels:

120-grain: 3100 fps
130:3000
140: 2900
150: 2800
160: 2700
175: 2550

So far I haven't found any new and magic powders that will beat those muzzle velocities at "modern" pressures. And there's no reason to anyway."

My data with Re17 and the 150 gr. Nosler partition. Rifle used was a Winchester M70 Featherweight, 22" barrel. Scope a Burris Fullfield II 3x9 set at 9X.

1. 47.0 gr. 2710 FPS ES 26 FPS Group a one inch triangle.
2. 47.5 gr. 2751 FPS ES 19 FPS Group 1 1/8x1x1/2" The one out was probably shooter error.
3. 48.0 gr. Missing FPS ES Missing FPS Group 1x3/8" As in group 2 the flyer was to the left of the main group. Velocity missing due to chronograph malfunction.
4. 48.5 gr. 2847 FPS ES 39 FPS Group 3/4x 1/4" two literally in the same hole and the outlier 3/4" above the hole.
4. 48.5 gr.

Hope this helps.
Paul B.
Thanks! I ran across that same post on 24 Hr campfire and wrote it in my notes lol

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 4:08 pm 
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6mm Remington wrote:
Sure looks like it's gonna be a winner! If you want, I have been able to find Hornady brass marked 275 Rigby if you wanted some of those for well, just because.
Thanks I have found some on gunbroker, but that's about it.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 4:09 pm 
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SJB358 wrote:
I’d try 30 Back and 45 front.
Thanks I'll be sure to give it a try

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 7:47 pm 
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Joined: Thu Mar 01, 2007 4:10 pm
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Location: British Columbia
Very nice rifle and it looks promising, have had 3 different 77's, (2 Mk II's and a Hawkeye) and all shot under 1" with a number of loads and some around 1/2" so I would bet yours will too once you experiment a bit. Mine seemed to do a bit better free floated instead of the bumps in the fore end they come with. A 160 gr Hot Cor at around 2700 fps would be a fantastic load if it works for you.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Mon Aug 19, 2019 8:04 pm 
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gerry wrote:
Very nice rifle and it looks promising, have had 3 different 77's, (2 Mk II's and a Hawkeye) and all shot under 1" with a number of loads and some around 1/2" so I would bet yours will too once you experiment a bit. Mine seemed to do a bit better free floated instead of the bumps in the fore end they come with. A 160 gr Hot Cor at around 2700 fps would be a fantastic load if it works for you.
Thanks Gerry! I glass bedded the action, and free floated it before shooting it. That seemed to be two of the most common modifications to the rugers, that I could find.

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Wed Aug 21, 2019 8:37 am 
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Last night I installed a new rifle basix trigger. Seems like a good product. Not sure on pull weight as my trigger gauge is being loaned out at the moment. Today my redding dies and 160 hot cors will arrive. Cant wait to try out some handloads this weekend

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Wed Aug 21, 2019 8:48 am 

Joined: Wed Nov 08, 2006 2:49 pm
Posts: 32334
Location: Northern British Columbia
Ah, the excitement builds! (y)

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 Post subject: Re: First range trip with the ruger african 275 rigby.
PostPosted: Wed Aug 21, 2019 9:49 am 

Joined: Sun Aug 19, 2012 6:44 am
Posts: 1821
Location: Sandy, Utah
I have some nice 7x57 ammo listed on the Classifieds! Beautiful rifle Pard!


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