Has anyone loaded these bullets in 470 yet? I called Hornady and they sent me there work up sheet and it shows a RL-15 load of 86.8 grs running at 1950 fps (there max load, a little slow) and IMR 4831 103 grs at 2100 fps and 105.6 grs at 2150 fps. I’m trying to stick with the RL-15 powder. I just purchased 0ne pound of H 1000 and H 4831 to try per there work up sheet.
They used Fed 215 primers, Hornady case and they were shot out of a 24” Ruger #1. My Heym also has 24” barrels.

quote:

Originally posted by 375John:
Has anyone loaded these bullets in 470 yet? I called Hornady and they sent me there work up sheet and it shows a RL-15 load of 86.8 grs running at 1950 fps (there max load, a little slow) and IMR 4831 103 grs at 2100 fps and 105.6 grs at 2150 fps. I’m trying to stick with the RL-15 powder. I just purchased 0ne pound of H 1000 and H 4831 to try per there work up sheet.
They used Fed 215 primers, Hornady case and they were shot out of a 24” Ruger #1. My Heym also has 24” barrels.

John I’m sure others will respond with loading recommendations shortly. I know Mike70560 has a nice loading using the North Fork FPS which also work for their CPS expanding bullet, here’s a link to his write up:
http://forums.accuratereloadin...0101804/m/7281027721

In the interim I ran some QL scenarios for you [470 NE (Pmax = 39160 psi), 500gr DGX/DGS w/24” barrel] and came up with the following information; I’ve included Hornady’s recommended loadings in blue and have shown loadings that exceed Pmax in red:
- 86.8grs RL-15 (83.1% fill) = 2131fps & 5040ft-lbs @ 40191 psi
- 92.5grs Alliant RL-17 (84.5% fill) = 2150fps & 5131ft-lbs @ 39044 psi
- 92.5grs Alliant RL-19 (96.9% fill) = 2137fps & 5069ft-lbs @ 39055 psi
- 96.2 grs Hodgdon Hybrid 100V (98.6% fill) = 2137fps & 5068ft-lbs @ 39086 psi
- 96.0grs Hodgdon H4350 (92.5% fill) = 2152fps & 5140ft-lbs @ 39058 psi
- 97.3grs IMR 4831 (97.3% fill) = 2143fps & 5097ft-lbs @ 39067 psi
- 103.0grs IMR 4831 (103.0% fill) = 2264fps & 5690ft-lbs @ 46638 psi
- 105.6grs IMR 4831 (105.6% fill) = 2319fps & 5968ft-lbs @ 50570 psi
- 94.5grs RL-19 (94.5% fill) = 2139fps & 5082ft-lbs @ 39097 psi
- 95.5grs Norma URP (92.5% fill) = 2154fps & 5150ft-lbs @ 39098 psi
- 92.1grs Ramshot BigGame (85.4% fill) = 2140fps & 5084ft-lbs @ 39086 psi
- 92.5grs Vihtavuori N560 (101.1% fill) = 2176fps & 5256ft-lbs @ 39137 psi
- 107.7grs Winchester WXR (104.3% fill) = 2175fps & 5254ft-lbs @ 39079 psi

The Hodgdon H1000 powder was not a good option as a compressed loading only produced 2106fps... Hope this is helpful.

Remember there can be significant variations between different powder lots.

For example, my 470 Evans regulated with 99 grs of IMR 4831 @ 2070fps with the first lot I bought. When I bought the next lot I had to go to 102grs to get the same velocity.

Always start low and work up over a chronograph.

I asked Butch Searcy about his regulation load for the .470 NE. His reply; 106gr of IMR 4831 and 500gr Woodleighs.

That just has a ring to it; "four-seventy Nitro Express, three and a quarter case..." Oooh-oooh!!

Rich
thirty-six days.

Rich:

Be careful with that load. That seems like a really hot load to me and as 470Evans says, there can be signifigant differences between lots of powder. My 470 regulated with 87 grains of Reloder 15 with a Kynoch wad or 99-100 grains of IMR4831 both loads pushing a 500 grain Woodleigh. Look at the QL projections for IMR4831 above.

105.6grs IMR 4831 (105.6% fill) = 2319fps & 5968ft-lbs @ 50570 psi


I wonder about that one as 106 grains of IMR-4831 gives 2,080 fps out of my 470 at 85 deg, with Woodleigh or North Fork 500s. I wonder what bullet those loads used. If it is the 500 grain Barnes solid or soft then maybe.

465H&H