Home Forums Reloading Big Game Rifles Full Case of 4831?

I�ve heard that in some circles there is a philosophy of loading with full cases of 4831. This seems interesting to me. Has anyone here heard of such, or practice such?

There are many examples of situations where you cannot get enough 4831 into a case to cause pressure problems. In those cases, I suppose you could do that without problem. I doubt that the rule is universally true.

Very true denton. A full case with a 150 gr bullet in an .06 will probably not cause any trouble. Years ago, for 200 yd work in matches,we shot AP's. The common practice of loading was to scoop the case full of powder out of a bowl and set the bullet.

How ever, do the same thing with a 200 or 220 gr bullet in the same .06 andyou might end up in trouble

Its not a universal truth...but in say the '06 family of cases, with lighter for caliber bullets, say like 140gr 7mm, yeah, you can...R-22 same way, as well as the super slow powders such as R-25, H1000, 7828 etc. Case capacity on the '06 family is @ 63grs, and you can get darn close to that without pressure probs in .270s with 130s, .280s with 140s, 30.06s with 150s and maybe 165s.

Some cases that are low capacity cases, you might not could get enough in to get anywhere near top end performance nor pressure.

On the other hand, if you ever try a "full case" in say a 7mmRUM, let me know so I wont be at the range that day!

Many shooters believe that a marriage of powder and bullet that allows you to load a full case nets the optimum performance in consistency. I sort of share that opinion.

.280Rem,

Good point. I didn't mean to suggest that it applied for all cartidges. I was thinking of the 30-06 and 7x57 classes of cartridges.

I'm looking for a way to try it with my 9.3x62, even though I know that in theory it's slower than optimal. Speer includes a load for a 4831 powder in their manual; does anyone know of any other?

The slowest powder Hodgdon shows in their data for 9.3x62 is 4350, and that is compressed. I would think you could use it, but you're not going to get enough in the case to get the best performance I wouldn't think. And its possible I guess, that it might not get it moving good enough and you could wind up with a hung bullet if it was too much a reduced load.

Actually that�s part of what got me thinking in the direction of 4831. I�ve used H4350 in that round and it made the bullet scream. Using it I got over their listed velocity several grains below their listed max.

I think so too. My rule is to choose the slowest powder I think will work. Then, if I run out of case capacity before I reach max pressure, I start over with a little faster powder and work up again. The goal is to get a load that maxes out case capacity and pressure at about the same time.

A 18"drop tube can get y0u another two grains or so in most .06 class cases.

my 270 wsm takes a whole bunch of H4831sc, 63.5 grains to be exact. have shot it on 90 degree or so days and the only pressuer i have is slightly flattened primers but accuracy is .184

Thats pretty much the way I approach it. I determine a target velocity, then choose a powder that should give me that with a full case. Usually there are 3-4 in the range...and then I work towards accuaracy. Its not an exact science though, as I shoot R-19 behind 180 Hornadys in my 300WinMag...I went through a bit of R-22 trying to find an accurate load before I switched. But when I switch bullets, I will try some R-22, R-25, VV-N165, etc again.

Don't forget that Hodgdon's version of 4831 is slower than IMR's. Seems obvious, but not everyone knows.

I got a buddy that will argue you blue in the face that they are interchangable...they're not!

I'd tell him, "good for you, now go sit down there at that far bench---------I find flying rifle parts distracting while I'm trying to shoot tiny groups." <img src="/ubbthreads/images/graemlins/smirk.gif" alt="" />
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Well, since I had data that said I could go to at least 97g. H4831 in my 375rum with 300 g. bullets...I loaded TSX's starting at 85g...but when I got to 93g., it started compressing the powder at 3.55 COAL, so I quit with that load. The 93g. loads shot best...no pressure signs....

John