What are you trying to hit at 1,000 yds? Is this for informal shooting of steel plate, NRA 600 yd targets (large enough for iron sights), or minute of angle or better precision?
The Vanguard is a hunting style rifle, with a sporter, or tapered barrel. It is not meant to shoot lots of rounds fairly quickly as the barrel heats up after just a few shots. If you are willing to wait 30 seconds or more between shots then it may work out to get started. But hunting rilfes are typically designed to be lighter weight for carry and no need to shoot more than 2-4 shots in a row (usually one or two).
If you are just having fun hitting large enough targets at 1,000 yds and don't need to shoot rapid fire, then a Vanguard could gt you started as well as most any hunting rifle. If you need more precision for competition then you need a heavy free-floated barrel, bedded receiver,target rifle and knowledge of a lot more factors than bullet drop to shoot precisely beyond 500 yds.