.308 Norma
Member
No sir, not exactly. IHMSA was one of the main driving forces for the development of the .357 Maximum (which is a smaller caliber than a 44) for use by metallic silhouette shooters competing in the "Production Revolver" category.I suppose metallic silhouette shooting was one of the main drive for bigger handgun calibers?
Cartridges like the 7mm IHMSA (a necked down .300 Savage case and also a smaller caliber than a 44) also came about because of metallic silhouette shooters competing in the IHMSA "Unlimited" category.
There might be a few larger than 44 calibers that came about because of IHMSA shooters, but I don't know of any. Full-house 44 Magnum loads are usually fairly reliable anyway at tipping over those 200-meter rams - if you hit them anywhere except low on a leg.