The value of an Interarms .375 H&H Magnum rifle can vary significantly based on its condition, age, and any unique features or modifications. Generally, prices can range from around $800 to $2,500, with well-maintained models or those with historical significance potentially fetching higher amounts. It's advisable to consult recent sales or a firearms appraisal expert for a more accurate valuation based on specific details.
NOTHING............Its a Remington
The 300 Winchester Magnum was not introduced until 1963. So yes most likely it is the H&H. I would do a chamber cast to make sure though. Both the .300 Win Magnum and the .300 H&H Magnum were standard calibers for the Model 70 in that era, with the .300 Win Magnum the more rare of the two. If your rifle is only stamped ".300 Magnum" it is more likely the .300 Win Magnum. You will want to have the chamber cast and the caliber verified before attempting to fire the rifle. I am lucky enough to own a pre 64 model 70 win,in the 300h&h.It is stamped 300 H&h Maginum.If your gun is stamped 300 Magnum , it is probally a 300 win mag.
You will have to contact Browning.
Yes, one was made with that sn.
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About $125-150 in excellent condition. They could be originally purchased in the late 70's for $74.95
Yes, if you have the 22 Magnum cylinder. It uses both.
100-1000 usd
$1500
Winchester Short Magnum Bert H.
The first, and probably the first practical and popular belted magnum cartridge is/was the .375 Holland & Holland Magnum. The first NON-magnum belted cartridge was the .400/,375 Nitro Express H&H cartridge. See link below for more information
100-500 USD or so