16bore,

You mean the "developers" should offer some new designs to fill the gaps between the 6.5 Grendel, 6.5 Creedmoor, .260 Remington, 6.5x55, 6.5x47 Lapua and 6.5-284?

Or the 6mm PPC, 6mm BR,6x47 Lapua, .243 Win., 6mm Remington and .243 WSSM?

Or the .22 Hornet, 221 Fireball, .222 Remington and .223/5.56? Or the .17 Hornet, .17 Fireball and .17 Remington?

Of course, there could be a few .20's added, since so far there's only the .204 Ruger. But Jim Calhoon makes a line-up of .19 wildcats that pretty well cover the milder rounds, and not only makes rifles but offers dies, brass and bullets.

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John Steinbeck