akray
.30 Stingray
"Alaska is what the Wild West was"
Posts: 388
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Post by akray on Aug 24, 2015 23:39:14 GMT -5
Heavy rifle recoil is no joke. I have a lightweight custom rifle chambered in 416 Remington Magnum and found that it's way too light for the cartridge. I fired 10-15 rounds through it the summer and fall I got it and lied to myself each time by saying "That wasn't so bad!" It didn't get my shooting shoulder as much as it did my off side shoulder. It's like the recoil whipped around and got my left side shoulder. Later that fall I couldn't understand why I couldn't sleep on my left side anymore because of the pain, or lift my left arm up over my head. I slowly put two and two together and figured it out. This was about 3 years ago and I have the range of motion back but there's still soreness and aches and pains around the left shoulder from time to time.
There's a reason that the old time elephant hunter Frederick Selous looked back on a long career of hunting elephants and the rifles he used to hunt them in a less than fond light. I read that he said they had left him with a permanent flinch and that he was sorry he had ever had anything to do with them. It's a lesson learned the hard way and something to think about when venturing forth into the big shoulder cannons.
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Post by whiterabbit on Aug 25, 2015 1:52:48 GMT -5
While I've not shot a handgun yet where I thought the recoil was uncomfortable I don't have much if any experience with even moderately heavy recoiling rifles. Hats off to guy that actually shoot guns like that without sustaining injury. Hard recoiling rifles abuse the shooter way more than even the largest handguns. Unlike a revolver there isn’t 3 feet of air between you and the gun. Yes, your wrists and hands take punishment but do so under travel. With a rifle it all lands on your shoulder and face. And your wrists still get wrenched. It may surprise you but I’d rather shoot my .50 Alaskan BFR than our Alaskan Siamese Mauser. Fifty rounds of 585 grs @ 2,000 fps and I return with a headache and sore shoulder. The same holds for a .500 Maximum Ruger from the bench. I’ll take that any day over my .450 Ackley on bags. We’ll be cautious with the Nyati though. If I’m going to launch 750 gr Woodleighs to 2,500 fps it’ll happen with a brake, mercury reduction, a sling, and 12 pounds of mass. On a lighter note I also designed an 840 gr cast with Mountain Molds. Plain base and out of lino it should do well at say 1,700 fps. -Lee www.singleactions.com"Chasing perfection five shots at a time" Lee, It is gonna be a sweetheart. My 510 wells does 850 grain cast bullets at 1900 fps as a reduced load and it's all I can stand. Also 12 pound rifle, mercury recoil reducer, but no brake. Also, I weigh 145 lb and 6'3". operative term is "stick thin". 1700 fps is a walk in the park, and 1500 fps feels like a lightweight shotgun. 2500 fps will be brutal I am sure! But with a brake, knowing what the wells is like, it's gonna be a sweetheart with ANY load. Including those woodleighs! Brake off, you couldn't pay me to shoot a 750 grainer doing 2500. Brake on? No problem. Sign me up! I have no doubts there will little if any special considerations needed once the brake is spun on. Can't wait to see the rifle. |
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Post by bulasteve on Aug 25, 2015 8:29:56 GMT -5
Like Bonds favorite drink, you'll be shaken, not stirred. Ouch. Guess you've seen all of the Jurassic Park movies, several times ? Be careful.
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Post by Lee Martin on Aug 27, 2015 19:38:42 GMT -5
A video of Avi shooting a .600 Overkill with 900 gr Woodleighs at 2,300 fps. You’ll notice how the brake tames this brute: I also misquoted the free recoil figures in my initial post. The .600 OK produces 200 ft/lbs. Considering the .458 Win Mag is ~54 ft/lbs it’s still 4X on the shooter. For comparison a 12 pound .585 Nyati with 750’s going 2,500 is 185 ft/lbs. I’m confident with decent mass, a good muzzle brake, and mercury reducers it’ll be very manageable. -Lee www.singleactions.com"Chasing perfection five shots at a time" |
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Post by Lee Martin on Aug 27, 2015 19:39:49 GMT -5
Thanks for the lead on the brass. Unfortunately it was already sold when I got over there. No worries though. I’m committed to the Nyati since my brass finally arrived:    100 pieces of Bertram unformed .585 at $6 per. Expensive but it’ll last a lifetime. -Lee www.singleactions.com"Chasing perfection five shots at a time" |
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dmize
.401 Bobcat
Posts: 2,834
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Post by dmize on Aug 27, 2015 22:25:00 GMT -5
That is the same exact thing I told myself when the $135 box of 50 AK brass came in for my 500 Max.
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Post by Lee Martin on Sept 23, 2015 19:07:18 GMT -5
My Nyati dies will arrive this week so I’m inching ahead. To recap our foundation is CZ’s 550 Magnum Safari in .416 Rigby.  Integral dovetails on a double square bridge:  A view of the cavernous magazine. There’s plenty of space for the Nyati and then some. The only mods required are opening the bolt face and relieving the feed rails.  I paid $600 factory direct for this standalone action in 2011. Unfortunately CZ isn’t offering them like in years past. Brownell’s, among others, used to carry the ’06, .375, and Rigby receivers. Nowadays all you see are ’06s and those are in short supply. Let’s hope this is due to production backlog and not a delete.  Later on I’ll detail the 550 Safari along with its ancestors – the first Magnum Mauser, Brevexs of the 50’s and 60’s, and the Brno 602. I’ll also touch on other actions suitable for this monstrous .585. -Lee www.singleactions.com"Chasing perfection five shots at a time" |
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ericp
.327 Meteor
Posts: 522
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Post by ericp on Sept 24, 2015 6:21:26 GMT -5
I look forward to reading that. It's hard to find much discussion of the beyond-375/458 size actions.
Eric
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Post by Lee Martin on Sept 29, 2015 21:13:02 GMT -5
The dies arrived:   RCBS and CH-4D are the only ones cataloging .585 Nyati. RCBS quoted $470 for the three-die set plus a six-month wait. CH-4D had them on the shelf for $230. I also purchased the shell-holder which is a .505 Gibbs part #. The dies look good and are on 1.0” bodies. Most O-presses are 7/8” so I needed the thread adapter. I got one from Midway and screwed it into a Rock Chucker I wasn’t using.  -Lee www.singleactions.com"Chasing perfection five shots at a time" |
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Post by mk70ss on Sept 30, 2015 15:27:03 GMT -5
My .45-70 Contender was plenty for me thank you
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aciera
.375 Atomic
Posts: 2,211
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.585 Nyati
Sept 30, 2015 23:47:42 GMT -5
via mobile
Post by aciera on Sept 30, 2015 23:47:42 GMT -5
I love the receiver peep on the early 602.
I think Ross had that on his 585
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Post by Lee Martin on Nov 5, 2015 19:27:34 GMT -5
Quick update - The barrel is on order from McGowan and should arrive by January. It’s a six groove stainless, 1:20” twist. I chose a heavy target contour measuring 1.0” at the muzzle. Better to start with too much steel than too little; we can final contour it ourselves. The reamer- I wanted a JGS but they no longer grind over .50-caliber. Probably a result of the destructive device law, although Nyatis and similar sporting cartridges are exempt. Pacific ground the first reamer for Ross and they accepted the job. The finisher and go-gauge will ship in December. PTG’s spec sheet:  I’m also putting together a piece on Magnum Mauser lineage. Look for it here in the coming weeks. -Lee www.singleactions.com"Chasing perfection five shots at a time" |
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Post by 2 Dogs on Nov 5, 2015 19:33:33 GMT -5
Ouch.
Just ouch!!
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Post by Lee Martin on Dec 3, 2015 19:44:55 GMT -5
The barrel arrived today and McGowan contoured it perfectly. I don’t think we’ll need to turn it; plus there’s plenty of diameter upfront for a threaded brake:   I also formed a couple Nyatis from Bertram basic brass. Just lightly lubed the top half with Imperial Die Wax and ran them through the FL sizer. The shoulder sets with ease:  The parent cylinder is 3.10” long so I still have to trim the necks. Case length will be held to 2.815”. Now all we need it the reamer. -Lee www.singleactions.com"Chasing perfection five shots at a time" |
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