H4895 .30-40 Krag Load with 220 GR RN?

[Jim Teague]

Go to Nosler bullets on the internet they give updated power loads for the 30 40 that might help.

[psteinmayer]

The Hornday 9th Edition is newer (within the last 5 years) and has been updated as well.

FWIW, even though the H4350 and IMR-4350 are ever so slightly different, the 40 grain load should produce results that you couldn't differ without a chronograph. I've used nothing but IMR-4350 for many years now... and I've never been unhappy with the results.

Paul

[Stretch32]

Paul,

Planning to load up some rounds with IMR-4350 this weekend. We'll see how they do compared to what I was getting with H4350. Thanks again for the help.

Stretch

[KWK]

Lyman's data, which was pressure tested using crushers, shows 4895 is quite safe with the 220 RN. In my 30" rolling block, their recommended starting load of 35.0 gr made 2000 fps, a little bit over what one might get in extrapolating from Lyman's 24" test barrel.

Even though I chose to try 4895, be warned that 4064 is a safer bet. The old Dupont data showed 4064 would be very safe for 2000 from 30" with 220 gr RN, but I've never been able to locate their 4895 data for that bullet. Their 150 and 180 gr loads show 4895 to have much higher pressure than 4064. Perhaps they had a poor lot, or perhaps 4895 has changed over the years; Lyman's data is the more recent.

Karl

edit: Sorry!, that H before the 4895 in your question hadn't sunk in, so my comments above are not relevant.