The Remington model 720 rifle was never offered in the 222 chambering. While it would have been technically possible to convert, the work required would have been totally out of any reasonable proportion to the result. Perhaps you actually intended to refer to the Remington Model 722 which was produced in that caliber. Price guides area available for reference to the current value for one of these rifles.
The value of a Remington model 600 .222 caliber depends on the condition of the gun. One in excellent condition is worth approximately $500, as of 2014.
That really depends on the condition. Take it to a gunsmith or appraiser or go to auctionarms.com to get an idea of what they are selling for.
$500-$600
remington 725 caliber 222 bolt action excellant condition
Winchester didn't make it, Remington did. Worth 222-350 depending on condition and lust level of buyer
Looks like it's 1-14.
Remington, Winchester, Sako to name a few
I sold one in 2002 for $450. It was VG condition, bought new in 1976 for $160 and used very little.
400 USD
That's going to depend on condition and which grade rifle you had. The .222 was standard with the 20-inch barrel for the first two years of manufacture, 1962 and 1963. In minty condition, a Remington 700 collector might pay up to $700. sales@countrygunsmith.net
Depends on condition. It could be worth around $600-700 depending on condition or if you have custom stock on it or any other work done to it. Just by itself in perfect condition I would guess around $600 in today's market.
22 is a rimfire, 222 is a centerfire.