Hmmm.... Maybe?
"The Soviet F1 hand grenade, nicknamed the limonka (little lemon), is an anti-personnel fragmentation defensive grenade. It is based on the French F1 grenade and contains a 60 gram explosive charge (TNT). The total weight of the grenade with the fuze is about 600 grams. The UZRGM fuze is a universal Russian type also used in the RG-41, RG-42, and RGD-5 grenades. The standard time delay for this fuze is 3.5 to 4 seconds. However, UZRGM fuze variants are available which give delays between zero (i.e., instantaneous) and 13 seconds, specifically for use in booby-traps."
Maybe they have set the fuse to 13 seconds because they used the booby-trap version?
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Actually, this raises an interesting point.
"The distance the grenade can be thrown is estimated at 30–45 meters. The radius of the shrapnel dispersion is up to 200 meters (effective radius is about 30 meters, by some sources (Russian)). Hence, the grenade has to be deployed from a defensive position to avoid harm."
"This type of grenade, featuring a high explosive charge encased in a thin sheet steel can, is an example of an "offensive" (relying on blast effect), rather than "defensive" (fragmentation) grenade. A serrated fragmentation sleeve ("Splitterring") was adopted in 1942 which could be slid over the head of the grenade. Fragments of the sleeve would be scattered on detonation, making the grenade more effective against personnel."
http://en.wikipedia.org/wiki/Model_24_grenade
Are the grenades modelled accurately, with the F1 having a 30m kill radius and the Model 24 a much smaller one?