I own/have owned numerous rifles in 30 caliber. The 300 H&H is one of my fav's.
Here's mine
It started life as a Rem. 700 Custom KS in 375 H&H and was re-barreled to 300 H&H and accurized by HCR. I gave it a Krylon Webbing spray, rattle can paint job.
The gent I purchased it from had several boxes of factory ammo.
The 180 gr. Barnes TSX are killers........
However, my go to load for the 300 H&H is 180 gr. Nosler Accubonds over 69 Gr. RL-19, Fed. 215M primers at 3.580" OAL
It is a porker perforator.
JAPPFT,
GWB