H4350 is same as 2209. Below is 139gn. Reloading tables are guides only, hence reduce loads and work up with caution. Tight barrels and/or tight chamber and vice versa determine your rifle's performance.
Kimber chambers are typically tight. Your one may not be...but according to the Hornady table you're not a mile out.
A slower powder might be better...just checking your barrel is 24" cos the Kimber has a funny factory thread that won't take a DPT unless an adapter fitted. Might be 22"?!
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