I am not sure where "St. Peters village area" is located. Use of a Rifle is driven by special regulation areas. So in a nutshell if St peters village is still in 5c then no, you can't use a rifle. Below are the Special Regulation rules I dug up on the hunting digest online.
Regulations Areas include: In western Pennsylvania, all of Allegheny County. In southeastern Pennsylvania, all of Bucks, Chester, Delaware, Montgomery and Philadelphia counties.
Deer: All Special Regulations Area counties are now contained within the Wildlife Management Unit system. Seasons and antler restriction requirements are based on these units and general deer seasons. However, certain laws and regulations in regards to arms and ammunition still apply to specific counties in Special Regulations Areas. It is now lawful to hunt or take deer on private lands in the southeast special regulations areas through the use of or taking advantage of bait. (See baiting section on General Hunting Regulations page elsewhere in this Digest for more information.) Also, the regulation: when multiple harvests of deer per day are authorized, only one deer at a time may be taken. Before attempting to take an additional deer, the first deer shall be lawfully tagged, no longer applies when hunting in Special Regulations Areas only.
Arms & Ammunition: Muzzleloading long guns .44 caliber or larger, bows and arrows, crossbows, manual or autoloading shotguns, .410 or larger using slugs and 20-gauge or larger using buckshot. Buckshot is not permitted in Allegheny County. Only bows and arrows, including crossbows, are permitted in Philadelphia County. Crossbows must have a minimum draw weight of 125 pounds. Small Game, Huntable Furbearers & Crows: Manually operated or autoloading shotguns plugged to a 3-shell capacity; manually operated .22 caliber or less rimfire rifles and handguns; and bows and arrows.
Lawful While Trapping: Manually operated .22 caliber or less rimfire rifles and handguns, except as noted under specific “Furtaking” regulations
elsewhere in the Digest.