[RacerX1166]

Accuracy and reliability are often somewhat mutually exclusive in a 1911. Depends just how accurate you want the gun.

Accurizing is often focused upon tightening up tolerances in slide/frame fit and barrel/slide fit. In short, you want the all the parts to fit together exactly the same way every time the gun returns to battery.

For reliability, you can polish components such as the feed ramp and extractor as well as throat the barrel, which provides a larger opening for the big .45 caliber bullet to get into place. Looser tolerances can assist in improving reliability.

Depends what you want to do with the gun. My comp guns are all super tight and thus super accurate. But a carry gun needs to go bang every time and is subject to accumulation of crud like pocket lint and such, so you want tolerances to be just a bit looser.