OP you might find x54r the better donor, unless your express purpose was to make low recoil ammo.
The x54r powder will be more suitable, but DO NOT USE IT ALL. you need to download it some. But you can make 150gr full velocity ammo this way.
Also, x39 bullets are usually .310, whereas x54r is usually .311. I know it's a tiny difference, but that tiny difference can make the difference especially in enfields where bore diameter can vary up to .314 or more.
Its not as cheap as the x39 remade ammo, but it's closer to the real deal while still being comparatively cheap.