This doesn't necessarily relate to Krags... but I have a question about powder.  I purchased some H4831SC powder.  I was looking for H4831, but they only had the SC (Short Cut) variety.  I tried to check, and according to one site, it should be identical to regular 4831, just with a finer cut that should meter better.  I want to be certain though because I'm using this for my Long Range ammo, which will already be near max load.  So....  Do I use H4831SC the same grain for grain as standard H4831?

I figured who else could I turn to for advice but the greatest bunch of experts around (meaning you jokers here at KCA)

I'd call Hogdon and still start with moderate loads and work my way up, looking for any signs of excessive pressure.

Amen to that!

According to QuickLOAD, burning rate is the same for both varieties of H4831 but the short-cut kernels allow a bit more weight of powder in the same space as "normal" H4831. This could be useful if you're planning on using it for your .30/06 long-range loads - as you might have difficulty stuffing enough regular H4831 in the case for sufficient velocity to be supersonic at 1000 yards - especially if you're sticking with that heavy LC brass you mentioned.

Cartridge          : .30-06 Spring.
Bullet             : .308, 178, Hornady A-MAX 30712
Cartridge O.A.L. L6: 3.340 inch or 84.84 mm
Barrel Length      : 24.0 inch or 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 58000 psi, or 399 MPa or a maximum loading ratio or filling of 105 %
USE ONLY FOR COMPARISON !

Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
IMR 4350                 105.0     56.7     3.67    2754    95.5    56119   11172   1.189  ! Near Maximum !
Hodgdon H4831 SC   105.0     59.8     3.88    2683    92.0    51473   11159   1.227  ! Near Maximum !
Hodgdon H4831        105.0     57.5     3.73    2567    89.7    44996   10581   1.305

Pt em in different cases, so there's no chance of getting them mixed with your Garand loads.

perhaps, I'll use HXP brass since I have a metric butt-ton of it!  I plan on marking the cases to indicate that they're the LR ammo. 

I really appreciate all of the advice!!!  Since I don't have a chrono, and I'm working from established load charts and the advice of my friends here, I truly do appreciate everyone's help!!!

Just remember that most published data was developed in commercial brass, generally having greater internal volume than military brass (including HXP). Put the same charge in the military case and pressure will be greater, sometimes significantly. Weigh a sampling of several types and compare average weights to learn how much more metal is inside the heavier ones.

Yea the components listed on published loads are part of the recipe.  Fellow gave me a bunch of his once reloaded GI brass once.  I noticed the imprint of the Garand ejector hole on about all of them.  He'd started with a Hornady max load for his 168s and the load was developed in Frontier cases.  I have no experience with Frontiers, and that was long ago, but I'll bet they were lighter than GI.

The Hogdon data states Winchester cases.  Perhaps I should bite the bullet and purchase some new Winchester brass.  Also, I think they listed a Federal primer, and I had planned on using CCI #34 Mil-spec primers.  If I'm not mistaken, the #34s burn somewhere between the 200 standard and 250 magnum primers... but have a thicker cup.  There really is a ton of stuff I need to consider here!

Sure is, l just noted the same 61gr 4831SC doesn't really get up to pressure in the 06 until you get up to 190gr.  Noted pressure in CUP.

Well, I set my OAL by sizing a spare case, inserting a bullet slightly and chambered it to set the bullet in the throat. 

Then, I took a Lake City 72 case, sized it, trimmed it, primed it, and charged it with 60.0 grains of the H4831SC.  The case filled to the base of the neck.  With the bullet seated to my OAL, the load isn't compressed, and I can hear the powder when I shake the case. 

Next... I'll load a bunch more, and then it's off to the range (as soon as it warms up, LOL)!

I remember 72s being lighter than 67s.  I have that stuff jotted down from long ago, somewhere.  Thinner neck, and I think flash holes were better centered.  I still have some around here.

The majority of my LC stash is 68.  I may see how an HXP does too since I have a metric butt ton of those.