However, if you are looking to push 156 Berger EOLs past 3K FPS this is likely not your powder. I believe H4831SC would be amazing under a 135 grain Hornady A-Tip, 130 Sierra Tipped GameKing/Gamechanger, 135 grain Berger Classic Hunter, or a 127 Barnes LRX. However, the accuracy was better and consistent. Just 30 FPS slower than my previous load of 57.7 grains of IMR7977 (or H1000). There is a large node around 2850 FPS, and a smaller one 2930 FPS. It was flat hammering and I felt like I was shooting my competition rifle.ĥ5 – 2,981 FPS (Heavy Bolt Lift/Pressure) The first 7 rounds went into a group just over ¼ MOA, while letting the barrel cool after 3 shot strings. This is the best the Havak has ever shot. The velocity numbers below may not knock your socks off, but the accuracy was simply amazing. Since we’re right in the middle with the 143 ELD-X, I felt this would be a good barometer for how it would perform on either side of the scale, and H4831SC did not disappoint. Many people say its burn rate is a tad too fast to push the heavy 6.5 caliber bullets fast in the PRC. H4831SC is often the powder of choice for 6.5x284 shooters. I had to cease testing for some time as all reloading components became scarce. ** This article was delayed due to COVID-19 and the huge demand it placed on the firearms industry. These articles are only meant to be a starting point for your own purchases and load development. As with all things reloading, your results may vary. Your barrel may be faster, or you may see the same results. We are used to running slower in the competition world to have a more consistent and reliable shooting rifle. *Notes – If you read the last article thinking, these velocity numbers are slow. The Powders we will be testing are: H4831SC, Retumbo, Reloder 23, and Vihtavuori N 565. Reloaded using Hornady Custom Grade die set, and a Sinclair Mandrel Expander for setting neck tension. Velocity was grabbed via a Magnetospeed V3 Chronograph. Loads were developed on a FX-120i scale with a V3 Autotrickler setup. We also placed a Bix’N Andy Dakota trigger in the Havak and it is working flawlessly. The only thing that has changed is we replaced the Vortex Gen 1 Viper PST with a Leupold Mark5 HD 3.6-18x44 scope in 35mm Hawkins Precision Ultralight Tactical Scope Rings. We’re using the exact same rifle, (Seekins Havak PH1 / 24 inch Rock Creek Barrel / Thunder Beast Arms Ultra 7 6.5) with the same Fed 210M primers, Hornady cases, and 143 ELD-X bullets. Since we got so much response from Part 1, I decided to try out some more popular powders for the 6.5 PRC and get out as much load information as possible. If you took the time to read Part 1 of this article, thank you! It took off more than I could have ever expected and I hope the information was helpful for your own 6.5 PRC reloading journey.
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