Wondering if anyone has any good load data for 350 grain bullets. I've been loading 500s, but have a box of 350s to burn up.

The problem is I can't find much load data for these bullets and the data I have found gives a velocity that is barely any faster than the 500s.

The highest velocity loads I have found is from the Accurate Reloading website. And it's 114 grains of IMR 4064 for 3000 fps. Has anyone tried this load or know of any higher velocity loads?

I load the 500s with IMR 4350, but also have some 4064 and 4895 that I use for other calibers.

check this

http://data.hodgdon.com/cartridge_load.asp

quote:

Originally posted by blackbearhunter:
check this

http://data.hodgdon.com/cartridge_load.asp

Same problem there. The maximum velocity is 2800 fps. Seems pretty slow for a 350 when my 500s do 2700.

Another link with powder charges Good luck

steves
http://stevespages.com/458_3_350.html

Thanks, looks like my best bet is to work up a 4064 load.

My old Hornady Vol II shows the 350 IMr 4064 loads from 98gr 2500fps to 111gr 2900.

The 111 was the load in the tan box calling max load use with caution.

QL calls your 114gr load at 52,500psi.

quote:

QL calls your 114gr load at 52,500psi.

Not bad. I've read that the Weatherby is rated for 65,000 psi.

I've now seen data listing 111, 114 and 116.6 as maximum loads. I think I'll start at 110 and work up a grain at a time until the bolt gets hard to open.

Well, after doing some searching and looking at the link from blackbearhunter I decided to work up a load using Varget.

I was a little leery about load data that I couldn't verify anywhere so I started with a light load of 95 grains. This left black soot all the way down the case. Bumped it up to 105 and still had soot down to the shoulder.

Worked it up to 120 grains with no signs of pressure. That was all the brass I had prepared, so I think I'll go back to the range soon and work it up a grain at a time from there.