I've got a .22-250. It's a Remington 700. It once was a .308, now it's a .22-250.

Kind of a funky home made in the garage type of thing. Shilen select match stainless steel barrel, #3 contour, 26" long. Planted into a Brown Precision kevlar stock with a Leupold 4.5 x 14 Vari-X III resting on top of some crudely crafted home made scope rings.

I shot Noslers in 50 and 55 grain weights for years and years. Now I just stick with 55 grain Hornady V-Max bullets just because they work so well and are deadly accurate.

My advise, for what it is worth, if you feel you must have a .223, save it for ground squirrels and prairie dogs. Use the .22-250 for large marmots and coyotes.
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