Musket balls or fishing weights?

[orm25]

Went out metal detecting in a park in Australia.
It's near a river but I found them about 100 metres away from the river near a tree.
One is sphere shaped but has a flat face while the other one is oval shaped but also with a flat face.
Could these be musket balls that were shot at something hard and deformed their shape or is it just some sort of handmade fishing weight or something.
Also found 4 coins.

 

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[TheCannonballGuy]

Speaking as a 40-year civil war relic hunter, and one whose specialty area of study is the projectiles, I can say that your two lead objects do have the distinctive look of fired "impacted" musketballs. Although they are no longer perfectly-round, impact damage only changes a lead ball's shape, not its weight. So, the way to know for sure if they actually are musketballs is to weigh each of them on a Jeweler's Scale, which measure in Grains of weight. Then see if their weight matches up with the weight of any of the known calibers of musketballs (or pistol balls). For example:
a .69-caliber musketball typically weighs approximately 400-to-410 Grains,
a .54-caliber musketball approximately 210-to-220 Grains,
a .50-caliber musketball approximately 160-to-170 Grains,
a .44-caliber pistol ball approximately 120 to 140 grains, depending on whether it is a muzzleloader pistol ball or a cylinder-loader pistol ball.

I should mention... numerically, more musketballs got fired by the multi-millions of civilian game-hunters in the past 500 years than by the armies during wars. So, unless some Military firing happened at the spot where you found yours, they are more likely Civilian-fired than Military-fired.

 

[orm25]

These two lead objects both weigh around 370.38gr (24 grams).
If they are musket balls, then they're are like you said probably civilian-fired because I don't think there was any war or battle going on it that spot i found them at.