Sir Bob,
Originally Posted by CZ550

Those numbers from Daisy are amazing! Not sure if I'll go there with Grace, but she did 2353 fps from the 480 DGX and 82 grs H4895.

Thanks for those "revelations" for the Ruger #1 in .458 Win Mag - one load (480 Hydro) attaining over 6400 ft-lbs at the muzzle!!!!!

I was amazed too. One thing to consider is that the bronze and brass bearing surfaces are slicker than the gilding metal,
and the gilding metal may be slicker than the pure copper.
The HYDRO and TBSS were both faster than I expected, and both delivered over 6400 ft-lbs from the same powder charge.
The highest coefficient of friction bullets, TSX and XTSX both delivered just over 6000 ft-lbs.
Coincidence ?


I now have to do a test for my scope (Nikon 2 - 8 x 32) to verify that its still good. It has taken quite a pounding over the past several years from the Ruger #1 in .45-70 LT and now the Ruger # 1 in .458.

For that, I'll use some 300 TSX's and 75 grs of H4198 at about 2750 fps. That load was shooting sub-moa. And, if the scope's good, and I can find more 300gr TSX's, that will become my go-to load. Modest pressure and recoil, plus flat shooting. It's just as accurate at about 2960 fps but I don't need that for anything. Actually the numbers for three shots were: 2958, 2961, and 2959; corrected to MV = 2978, 2981 and 2979. Avg KE = 5913 ft-lbs.

Bob
www.bigbores.ca


Bless your Nikon. Daisy was wearing one too.
My only suggestion is to check all the screws and studs holding the quarter rib onto the barrel.
Make sure they are tight and stay that way.
I learned by loosening one on a .475 Linebaugh Ruger No. 1.

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Red Loc-Tite or J-B Weld if the factory did not do it. They neglected it on the above 6 lbs-13oz bare-weight rifle, which has a long throat from the factory,
the secret to the mighty-mite power of that .475 Linebaugh rifle.

The 9-pound bare-weight Ruger No. 1 is the perfectly balanced and portable shooter for any load possible as a .458 WM+ or SAAMI.


Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.