458 Win/Lott - 550 grain North Fork PP's

[Honeybadger1983]

Hey guys, I have been on the forum before. I was forced to get a different email address, and well it's been so long since I've logged in that I can't remember any of my credentials, could not retrieve them, and so here I am with a new account.

Anyhow, I am looking to load up some of North Fork's 550 grain Percussion Points in my 458 Win Mag, and also some for my 458 Lott. The Win Mag is a new manufacture Winchester Model 70 Safari; the Lott is a Ruger #1 Tropical in Stainless with the grey laminate stock that I got new back in like 2006.

That said, I am an experienced reloader but would appreciate any info that anyone has to get me jump started here. Load development with these guys from scratch would be very expensive indeed. I have the Woodleigh reloading manual; it has load data listed for their 550's and I have to imagine that is a good place to start here. Erring on the side of caution of course and slowly working up.

Now I will say that I am a huge fan of the IMR powders, 3031 being my favorite and 4064 being another one of my go-to powders. If anyone can point me in the right direction where 3031 is concerned, I'd be extremely grateful. Thanks in advance to anyone that is willing to help me out with this little project.


James

 

[TennesseeHunter]

Howdy,
I’m not sure I can be much help but hey better than nothing. I think you have the right idea with using load data from the woodleigh manual but starting even lower.

I reload the 550 grain percussion points and the 458 win mag but unfortunately those are separate of each other.

If you’d like I could poke around with the online reloading simulator Gordon’s reloading tool and see what it estimates.
Or better would be I could load a few up and see what the results are. I know I have varget, n133, and aa2460, but I’d have to check the imr powders as I might have used all I had on 45-70.

 

[Honeybadger1983]

Howdy,
I’m not sure I can be much help but hey better than nothing. I think you have the right idea with using load data from the woodleigh manual but starting even lower.

I reload the 550 grain percussion points and the 458 win mag but unfortunately those are separate of each other.

If you’d like I could poke around with the online reloading simulator Gordon’s reloading tool and see what it estimates.
Or better would be I could load a few up and see what the results are. I know I have varget, n133, and aa2460, but I’d have to check the imr powders as I might have used all I had on 45-70.

Sent you a DM