Statistics for Wildcat cartridges and derived calibers

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Hint	Answer	% Correct
Parent case of .40 S&W	10mm Auto	79%
.357 Magnum was developed from this smaller cartrdige	.38 Special	79%
.30 class cartridge developed from .221 Fireball designed to be suppressed	.300 Blackout	64%
.40 S&W necked down to ~9mm	.357 Sig	57%
.220 Russian derivative, named for Beowulf's enemy	6.5mm Grendel	36%
.222 Remington necked down to have longer range	.204 Ruger	21%
Derived from .30 Rem to possibly phase out 5.56 in army use	6.8 SPC	21%
Game hunting round derived from .45 Colt	.454 Casull	14%
.30 Carbine necked down to 5.56mm	5.7mm Spitfire	7%