sawdeanz said:
The P7 is a weapon that many experienced gun owners find highly desirable. But it is a unique design and might not be the best choice for a first gun.
The P7 has many positive attributes. The fixed 4-1/8" barrel contributes substantially to accuracy, as does the consistent single-action trigger. A low bore axis aids in recoil management for fast follow-up shots. The near absence of buttons and levers simplifies the manual of arms and provides a smooth profile for concealed carry. The guns are robust and were built to a very high quality standard. The design is also inherently safer than most.
However, the P7 also presents challenges. The manual of arms is unique; some find it intuitive, while others find it too alien to use successfully in comparison to other pistols. For a used gun, the P7 is expensive -and the magazines more so- and factory service can be pricey since there is no warranty. For a carry gun, the P7 is heavier than most comparable guns, has a smaller magazine capacity than many, and has fewer holster choices than more common guns.
One thing that has not been mentioned is a gas cylinder cleaning tool ($25 or more ... when you can find one). While the gas cylinder can be cleaned with a .270 bore brush, the cleaning tool is highly desirable to get carbon deposits out of the cone-shaped back of the gas cylinder where a bore brush will not reach.
I won't venture into the start-with-a-rimfire debate, but I would hope that a new shooter would not be banging away at such a rate of fire as to cause concern over heating the gas cylinder. A 50-round box of ammo, fired slowly and deliberately, particularly with magazine reloading and target inspection between strings, should not cause heating problems.