H&R Cavalry Model Front Sight Height??

[UNC81]

I recently bought an H&R Cavalry Model Carbine repro. The prior owner installed a globe front sight. There is a dovetail notch on the barrel front, so I am planning to replace this with a Lyman #3 blade.

Here is the question. What is the optimal height for this blade given that I plan on shooting an average load of +/- 1,000 fps muzzle velocity using Trail Boss and a 405 grain bullet?

Thanks in advance for your collective wisdom.

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[Larry Gibson]

Optimum height of the front sight depends on what the rear sight is and how you want it zeroed. I'd suggest you get a tall front sight and then with the rear sight on the 200 yard setting (assuming a 200 yard range is available) zero your standard load (you should develop a standard load before adjusting the sights) by filing down the front sight until the center of the group comes up to the desired point of impact. I prefer the group to just sit on top of the front sight. This can also be done at 100 yards but at a range less than that greater inaccuracies are like with the longer range settings.

Larry Gibson