I'm actually sticking with T2K for grenade damage, using 250 grams of dynamite is 1 DP and 5 times the square root of half the DP is the concussion value. FF&S bases it on the diameter of the grenade, which is fine if they're all egg-shaped, but with weird-ass cylindrical grenades and disk grenades and hairbrush grenades, it doesn't work well. T2K also covers thrown grenade range, where everything up to 1 kilo is the character's throw range and everything massing higher is throw range divided by mass (just about everything is 1 kilogram or less).
Where I am using FF&S is for rifle grenade indirect fire range, which for this tech level is 35 meters multiplied by the rifle's damage die and divided by the grenade's mass in kilograms.
The 36M actually is a late World War 1 grenade - the No 36 is the No 5 Mills Bomb adapted for use from a rifle cup launcher, and the M was developed in 1917 with shellac to waterproof it for use in Mesopotamia. The early No 36 had 70 grams of amatol filler (using ammonium nitrate instead of the barium nitrate of baratol).
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The poster formerly known as The Dark
The Vespers War - Ninety years before the Twilight War, there was the Vespers War.
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