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H4831SC Powder readily available in stock now. Ballistically, this Extraordinary Extruded powder is the exact duplicate of H4831. Bodily, it's got a shorter grain dimension, therefore, the designation SC or limited cut. The shorter, far more compact kernels allow the powder to flow with the powder actions far more effortlessly, helping to relieve the consistent chopping of granules.
What is actually the main difference? Compression. With no extreme/heavy compression connected with the extensive grain 7828, the stress curve was altered as well as load fell apart.
Minnesota H4831SC is my check out inside the 7mm Rem Mag, but I am conserving the small I've remaining for drop 2021. I'd start out minimal and function your way up, based upon what load data you have a look at for this combo the min/max loads are all over the board.
IMR powders also preform effectively for me with one particular noteworthy exception. The many chrongraphing I've carried out with them signifies the velecity is consistant earlier mentioned 32 levels but begins to vary after the temp starts to drop. The closer to zero I get the more they differ. I have witnessed about 250 fps in a ten shot string with my 243 and 223 from the Wintertime time around right here. Have not observed this with several of the other powders.
Because there will not seem like any "Formal" Load Data in existence for this Load, can some of you offer a starting point with this combination and items to consider when Operating this Load up?
If there is not any load data it really is mainly because this powder is not well suited for this cartridge. Generally a single will not likely find 1 powder to fit all cartridges, along with the spouse and children of cartridges with The actual powder (4831SC) that you are asking about doesn't perform.
If you've got some heavier .224" bullets, you might locate a load that works OK While using the 4831. The bullets I tried which were above 70 grains would not stabilize in my rifle, which had the conventional 14" twist. The 70-grain Speer was the most significant bullet that will stabilize, but it really did that beautifully. It's a humorous-on the lookout bullet using a rounded nose profile, but it surely shoots wonderful and kills well. Deer out to about 150 yards al went h4831sc load data down instantly with rib-cage hits.
I have discovered the precise reverse to be real in my gun. H4831SC was the slowest powder with a hundred and eighty g Accubonds. RL22 was a considerably quicker and Similarly accurate powder in my 300 Earn Mag.
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I've experienced related knowledge with H4350. For me, some ball powders is not going to shoot perfectly with anything apart from Fed215's. Some elements just Really h4831sc don't Enjoy properly with other. Looks like you've got preferred three good powders, I'd expect at least one of these to shoot.
Indeed, You may use exactly the same load data for H4831 vs H4831SC, even so the SC Model h4831 vs h4831sc may permit you to get a bit a lot more in conditions in which you are maxing out scenario quantity While using the standard powder prior to reaching stress limits.
Though IMR 4831 and H4831SC are distinctive powders, you'll find that in many scenarios, where one of them is shown the opposite might be likewise. Also, you will find there is a fairly steady connection amongst them in regards to listed loads.
Not surprisingly, sitting down around for 20+ several years (I am aware a man who remains using the H4831 he bought within the 60s), implies that burn off premiums will most likely improve a smidge, and new manufacture things will likely be slightly various also.