Understanding Front Focal Plane with Leupold

Published on June 14, 2013
Duration: 5:53

This expert guide from Leupold's Tim O'Connor and GunTalk TV's Tom Gresham breaks down the critical differences between Front Focal Plane (FFP) and Rear Focal Plane (SFP) reticles in rifle scopes. It details how each system magnifies with the target or remains static, impacting range estimation and holdover accuracy across magnification levels. The guide emphasizes choosing the right focal plane based on intended use, from military applications to hunting scenarios.

Quick Summary

Front Focal Plane (FFP) reticles magnify with the target, ensuring consistent subtension for accurate range estimation and holdovers at any power. Rear Focal Plane (SFP) reticles remain static, making them ideal for fast acquisition at low magnifications but limiting range estimation accuracy to the highest power.

Chapters

  1. 00:24Introducing Focal Planes: FFP vs SFP
  2. 00:32Understanding Reticle Placement in Scopes
  3. 01:12Historical Context & Current Trends in Scope Design
  4. 01:54How Front Focal Plane (FFP) Works
  5. 02:56How Rear Focal Plane (SFP) Works
  6. 03:24Advantages & Disadvantages of FFP Scopes
  7. 04:15SFP for Hunting & Fast Target Acquisition
  8. 05:00Choosing the Right Focal Plane for Your Needs

Frequently Asked Questions

What is the main difference between Front Focal Plane (FFP) and Rear Focal Plane (SFP) reticles in rifle scopes?

In FFP scopes, the reticle magnifies with the target image, maintaining consistent subtension for accurate range estimation at all powers. In SFP scopes, the reticle stays the same size while the target image changes, making range estimation accurate only at the highest magnification.

When is a Front Focal Plane (FFP) scope preferred over a Rear Focal Plane (SFP) scope?

FFP scopes are preferred for tactical and military applications where precise range estimation and holdovers are critical across all magnification settings. This includes scenarios involving variable power, night vision, and moving targets.

Why might a shooter choose a Rear Focal Plane (SFP) scope for hunting?

SFP scopes are often favored for hunting and fast target acquisition, especially with low-powered variable optics (like 1-6x). The reticle's constant size at lower magnifications aids in quickly acquiring the target without it appearing too small.

Can the reticle size be a disadvantage in Front Focal Plane (FFP) scopes?

Yes, in FFP scopes, the reticle can appear very small and difficult to see at the lowest magnification settings, or conversely, it can become very thick and obscure the target at the highest magnification settings.

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