could be because it performed poorly for those bullets and they didn't think it was worth listing. But for whatever reason they didn't provide IMR 4064 load results for the 178 - 180 gr. Although, I do see that they state IMR 4064 and VARGET provided the best results for the bullets they loaded with it. And IMR 4064 is not one of the powders listed for that specific bullet in the Hornady manual. Maybe some of you guys that are way more experienced than me can chime in on this one - you guys might not share my opinion on the topic.Īnd while you certainly don't have to use the powders listed in the bullet manufacturer's reloading manual - you might want to think about doing so as those are powders that were tested with the specific bullet, not just general reloading information from the powder manufacturer. Not doing it that way would be pretty reckless. load and work up - it's just the safe way to do it. Even loaders that have been doing it 10-20 years generally start from the MIN. Am I going about this all wrong or is there a way I can simplify finding the best load? I look forward to any input you guys might offer!ĭon't load to factory ammo specs.that's basically loading to a garbage standard :PĪnd I would suggest that if you are not a seasoned/experienced loader, you should always start your loading at the MINIMUM grains/load and work up. Based on the Hornady ballistics calculator i should be okay with the loads I am considering out to the 1000 yard mark. I think the bullets were starting to go transonic out at that range, muzzle velocity was in the 2600fps range. I have shot this rifle out to 900 yards with some factory Sig Sauer 168g OTM bullets at steel and had fair results. My theory is if I can match the specs closely enough to the specs of the Federal ammo I will get similar results. I have looked at a couple of loading manuals and figure I need to be in the neighborhood of 42.7 grains of the IMR to get close to the same velocity. ![]() ![]() I ntend to set the base to ogive lengths the same as well. Based on the performance of the Federals I have set the shoulder on my prepared brass to the same dimensiond of those cases. ) prior to firing the rounds and afterwards. I can get a little anal into all of the specs on the different bullets, I have dimensions, (base to shoulder on the case, base to the bullet ogive etc. The muzzle velocity for the Federals was 2550,2555,2556,25. It also did fairly well with the Hornady precision Hunters, best 5 shot group was a cloverleaf and two flyers. It really likes Federal 175 SMK's, my best is. I have shot several different factory loads through this rifle. I am shooting these out of a 20" heavy barrel Howa 1500. I am getting ready to load up some 178 Grain ELD-X bullets over IMR 4064.
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