You will have to shoot the load at different settings to find out which one works best with your particular rifle and ammo.
You will have to call Browning with the serial number.
7mm Magnum and 300 Winchester Magnum
26"
Made in both Bolt and Semi-Auto versions
243, 270, 30/06, 7mm Magnum, 300 Magnum
A call to Browning for a manual or a trip to a gunsmith is in order.
Browning did not make the Model 70, Winchester did. Also, the serial number is not a valid Browning serial number for a 7mm Magnum rifle. Please doublecheck your information.
Check with Browning customer service.
100-10000 USD depending on specifics
Contact Browning Customer service through their website, and request an owner's manual.
7-9 lbs depending on model