Question for adjusting a load to make fixed sights hit POA
I have an older Traditions Deer Hunter (I believe that is the model but I have had it so long I can't remember) and it has fixed sights. I would like to switch from PRB to the Hornady PA conicals that I shoot out of another flintlock. The problem is that they shoot high but group well. What way should I adjust the powder charge to get it to shoot lower? I like the idea of having a little more bullet weight and only having to keep one type of projectile around for both guns. I am planning the experimentation after the season, I am just looking for ideas to get me pointed in the right direction so I don't waste time and powder at the range. Thanks in advance.
Replace with a higher front sight, after replacing if it happens to hit too low then you file down the front sight till zeroed.
Regarding powder charges you would have to experiment, I'd use the powder charge that is shooting well assuming it is between 80-100gr and change the sight.
Most of the time a conical load uses a lighter charge than a patched ball. I would try droping from a 90 gr charge, (assuming it's a 50 cal), to a 70 or 75 gr charge. Ideally a 90 gr charge of FFG, or Pyrodex RS would yield the desired result, but your only other alternative would be changing the front sight to something taller, or replacing the rear sight with something adjustable.
a 70-75 gr FFG charge should be adequate for deer @ 50 yards.
If i remember it was 12 inches high, I am going to shoot it this weekend and will double check that. It has been a long time since I tried the conicals so I am vague on the details but i do remember it was way off.
I had heard the same thing about cartridge firearms and changing bullet weights but had never tried it before so I may have to just change the front blade. I will let you know how it goes tomorrow.
Another option is to purchase an adjustable rear sight
Only way that would work is if it was a good bit lower than the stock non-adjustable and I doubt you could find one. Rear sight needs to come down enough to move the bullet 12" or the front needs to go up.
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I dunno what type of rear sight you have on the rifle, but (like I do with flintlock builds) a gun that shoots high can be adjusted with filing down the rear sight.....a little at a time and test while doing this at the range.