500 Jeffery Recoil?

[spike.t]

Could it be your Bertram (Kynoch) cases are too soft? I`ve experienced the same case sticking issues with Kynoch ammo (416 Rigby) so I did some research both on domestic and international sites and found more examples. Also on this forum.
Wonder how this ammo would work in a straight pull action?))

Honestly wouldn't have a clue if they are...as said no problem with the sako or norma ammunition...apart from as I said the nice shiny norma ones jumping out of the magazine when you cycle the bolt...First discovered that when I was seeing if they fed OK...I remembered reading on here someone having same problem in another cal I think...he scratched them up a bit , so I did same with some sandpaper...and seems to have worked...

 

[colorado]

I use Jamison brass for my 500 Jeffery. Zero issues

 

[Daniel Cary]

I use Jamison brass it's built to the 500 Jeffery standard. I easily get 10 full power reloads with it. A 9 lb 500 Jeffery, I know someone who has a 7 lb 500 Jeffery. My hat's off to you both lol. If anyone asks how the recoil is here's some things you can say ...

It's but a maiden's kiss

It's more of a push than a shove

The check's in the mail

10 Reloads .. I had no idea, glad to hear. Hendershot's is down to Barnes 570grn Banded Solids available only.

It's grim.

 

[colorado]

@spike.t shooting his 500J at Takeri

and at the range

and my 416 Rigby at the range

Spike seems about right. The 416 Rigby's recoil seems like a 243 lol

 

[Daniel Cary]

Spike seems about right. The 416 Rigby's recoil seems like a 243 lol

Thank you .. wondering where these went, Great Shot!

 

[Daniel Cary]

Left to Right .. certain differences. Kynoch-Norma-Jamison-Bell.

 

[Daniel Cary]

rim diameters difference .. hard to capture.

 

[Northern Shooter]

Does factory loaded 500J ammo exist? I've never seen it in stock (Canada).

 

[PeteG]

Spike seems about right. The 416 Rigby's recoil seems like a 243 lol

There was also a significant difference between the various ammo.
I believe Mike settled on the sako ammo as being easier to shoot and better control of recoil. The wood stock also helped rather than the plastic one. @spike.t what gr was the sako? It was easier to handle than the Norma 570gr if I recall

 

[grand veneur]

Does factory loaded 500J ammo exist? I've never seen it in stock (Canada).

 

[Northern Shooter]

View attachment 554490

Those are current production? Those boxes look old.

 

[grand veneur]

Are they too. Wolfgang Romey gave up his business years ago. At times ammunition from this company is still offered.

Norma produces 500 Jeffery ammo. I don't know what Kynoch is doing in the UK, but the ammunition is still listed on the homepage.

 

[spike.t]

There was also a significant difference between the various ammo.
I believe Mike settled on the sako ammo as being easier to shoot and better control of recoil. The wood stock also helped rather than the plastic one. @spike.t what gr was the sako? It was easier to handle than the Norma 570gr if I recall

The sako was 535grn a frames....but seems stopped making as can't find on their website anymore...

 

[cajunchefray]

Left to Right .. certain differences. Kynoch-Norma-Jamison-Bell.

View attachment 554477
View attachment 554478

@Daniel Cary, @spike.t @IvW


Excellent picture that shows the dimensional differences amongst brands, the shoulder angles and rims.

May explain the chambering, extraction and pressure differences.

African Dangerous Game Cartridges by Pierre van der Walt documents the historical variations of the 500 Jeffery (aka 12.7x70 Schuler). From August Schuler's cartridge drawing, W J Jefferey's submission to Kynoch (ICI in 1928), then much later A-Square submission to SAAMI and CIP, all had variance in the shoulder angle.

Kynamco (recent Kynoch) submitted a CIP drawing that basically averaged the shoulder angle, closer to the original 12.7x70 Schuler. Very confusing and created many interchangeable ammo problems. This has been documented by Mr. Van der Walt, and on others African Big bore forums.

I have fired recent Kynoch .500 Jeffery 535 grain SP in a CZ 550. That defined my recoil limit, more likely condemned my recoil tolerance.

Slightly firm bolt lift and extraction, but they worked. After reloading for 20 years, felt like a "warm" load.

3 shots, and the buyer (a member here on AH), got the other 2 rounds from the box.

I reloaded a milder load, at 2150 fps with 570 grain Woodleigh softs, in Norma brass, with a mild charge of Hogdon Varget, sized in RCBS dies, and had no problems.

It works on feral hogs. Pretty well.
I stepped down to the .458 Winchester for a future buffalo hunt.

The .500 Jeffery is an awesome round.

 

[spike.t]

@Daniel Cary, @spike.t @IvW


Excellent picture that shows the dimensional differences amongst brands, the shoulder angles and rims.

May explain the chambering, extraction and pressure differences.

African Dangerous Game Cartridges by Pierre van der Walt documents the historical variations of the 500 Jeffery (aka 12.7x70 Schuler). From August Schuler's cartridge drawing, W J Jefferey's submission to Kynoch (ICI in 1928), then much later A-Square submission to SAAMI and CIP, all had variance in the shoulder angle.

Kynamco (recent Kynoch) submitted a CIP drawing that basically averaged the shoulder angle, closer to the original 12.7x70 Schuler. Very confusing and created many interchangeable ammo problems. This has been documented by Mr. Van der Walt, and on others African Big bore forums.

I have fired recent Kynoch .500 Jeffery 535 grain SP in a CZ 550. That defined my recoil limit, more likely condemned my recoil tolerance.

Slightly firm bolt lift and extraction, but they worked. After reloading for 20 years, felt like a "warm" load.

3 shots, and the buyer (a member here on AH), got the other 2 rounds from the box.

I reloaded a milder load, at 2150 fps with 570 grain Woodleigh softs, in Norma brass, with a mild charge of Hogdon Varget, sized in RCBS dies, and had no problems.

It works on feral hogs. Pretty well.
I stepped down to the .458 Winchester for a future buffalo hunt.

The .500 Jeffery is an awesome round.

Yeah with the kynoch ammunition as said I found recoil vicious and after the bolt was very hard to work...not an ideal scenario....it was loaded quite hot compared to the same 535 grn bullet in the sako...me and @PeteG chronographed one kynoch and it was considerably faster than the sako....and more evil I think than the norma 570 grn in my rifle...I had no extraction issues with the sako or norma ammunition....the sako I really liked but as said seems consinged to history unfortunately...got 15 or so rounds left ..and rest are norma 570 in soft or solid..plus couple 10 round boxes of norma 540 grn solids

 

[Bob Nelson 35Whelen]

Greetings AH. This may be subjective, splitting hairs, or just ridiculous, but any feedback appreciated. All being equal in the Firearm ... Out of the Available Factory Ammo, is there a distinct difference in recoil between Kynoch's 535's 2400 fps "I believe" .. Norma's 540 Grain 2400 fps .. Norma's 575's 2198 fps? Thank You!!!

I also have Reload's grouped at 50 yards: 600 Grain 2100 fps.?

Many Thanks.

@Daniel Cary
@norfolk shooter is only a little tracker. His 10 bore sxs shot gun is almost as tall as him and he weight is possibly nudging 150lbs with a pocket full of sinkers but he handles the recoil of his 500 loaded wit 130gns of powder quiet well. It's not as bad as he thought it would be.
He sent me a video of I'm shooting it and it looked quite tolerable.
Bob

 

[Pondoro]

I have fired Kynamco and both Norma loads in mine (570 and 540 grainers). Sticky bolt lift with Kynamco...hot load indeed.. Norma ammo is fine...all ammo kick like two wild mules...

If money permits I will let the .500 go and purchase a .600 double...more pleasant to shoot..

 

[colorado]

I have fired Kynamco and both Norma loads in mine (570 and 540 grainers). Sticky bolt lift with Kynamco...hot load indeed.. Norma ammo is fine...all ammo kick like two wild mules...

If money permits I will let the .500 go and purchase a .600 double...more pleasant to shoot..

I believe you but that's a horrible indictment of my beloved 500 Jeffery lol

 

[Bob Nelson 35Whelen]

I received my 500 Jeffrey AHR TODAY.View attachment 362075

@krish
Your tastes in firearms never ceases to amaze me. You have excellent tastes in your weapons.
Bob

 

[Bob Nelson 35Whelen]

@spike.t shooting his 500J at Takeri

and at the range

and my 416 Rigby at the range

@PeteG
The 416 looks the more pleasant to shoot and better for follow up.
I'm not into pain nowdays so will just stick with my baby Whelen..
I know go big or go home so I'll leave my big boy pants off and stay home and enjoy others shooting the big toys. The last big toy I shot was a 378 Weatherby and that wasn't to bad.
Bob