Mk II load data?

[RobD]

Can anyone advise a load for me from a programme?

I want to replicate the Boer War - era .303 round, for use in my MLE, LEC, and ME rifles.
AFAIK, the Mk II .303 had a 215 grain jacketed bullet at a muzzle velocity of 1970 fps (quite similar to the Mk VI bullet (2060 fps)).
I am planning to buy 215 grain round nosed jacketed .303 bullets, and I need a recommended powder load which will give 1970 fps muzzle velocity from the Long Lee (barrel length: 30.2 inches).
I use the Vihtavuori powders, and have N140, N150 and N160 to hand. Lapua/Vihtavuori do not include a 215 grain .303 bullet in their load tables.
Can anyone assist?

Information

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[Parashooter]

Cartridge : .303 British x .312
Bullet : .312, 215, Woodleigh RN SN 68
Cartridge O.A.L. L6: 3.075 inch or 78.11 mm
Barrel Length : 30.0 inch or 762.0 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Muzzle Velocity: 1970 fps or 600 m/s

These calculations refer to specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

Powder Fill Charge Charge Vel. Burnt P max P muzz B_Time
Type....%...Grains.Grams..fps....%...psi...psi.... ms
--------------------------------------
Vihtavuori N150 78.2 33.2 2.15 1970 98.1 26882 4621 2.051
Vihtavuori N140 72.3 31.3 2.03 1970 99.4 27614 4384 2.037
Vihtavuori N160 90.2 38.9 2.52 1970 85.0 27331 4907 2.032

As you can see from the "Burnt" column, N140 appears the most efficient choice of the 3 powders listed.

[RobD]

Superb; many thanks.
31.3 grains of Vihtavuori N140 should do nicely.
Rob

[ssj]

I dont have anything on the "'N's" but for 215gr (woodleigh weldcore).

IMR4320 36gr = 2003fps
IMR4350 39.5gr = 1952fps
Re19 40gr = 1927fps

These are min loads.