Achieving Accuracy - The HuntingPA.com Outdoor Community
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post #1 of 25 (permalink) Old 12-31-2019, 04:51 PM Thread Starter
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Achieving Accuracy

Hey guys,

Ok so I have a new flintlock (Lyman 50 cal deerstalker). I did shoot it with snow on the ground and it appears that with 90 grains of powder I do not have residual powder on the snow which tells me all the powder is burning.

Now how do I achieve accuracy. I shot a 5 shot group today with no bore swabbing between shots and I was about 6 inches high and about 2 inches to the right. I was able to achieve the same results with both PRB and 245 grain Powerbelts.

Any thoughts? And help is greatly appreciated.

Thanks

Travis
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post #2 of 25 (permalink) Old 12-31-2019, 04:56 PM
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So, what are we taking about here... accuracy (tightness of group), or point of impact (group in relation to bullseye) ?
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post #3 of 25 (permalink) Old 12-31-2019, 05:32 PM
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If the size of the group is acceptable (means you have an acceptable load), you need to move your rear site down and to the left to get the correct point of impact. If I remember right, the Deerstalker has adjustable sights.

Keep in mind this is the direction you want the sight to move. Should the sight have an arrow labeled L/R and Up/Down, turn the screw in the direction you want your bullet to go. I.e. , should you wish your shot to go right, turn the screw in the direction indicated by the arrow (R). (which will actually shift the sight to the left).

If you have an owners manual, it should be explained within.
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Last edited by simoncool; 12-31-2019 at 05:37 PM.
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post #4 of 25 (permalink) Old 12-31-2019, 05:46 PM
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How far is your target 50 yds ?
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post #5 of 25 (permalink) Old 12-31-2019, 05:56 PM
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Quote:
Originally Posted by loridr View Post
So, what are we taking about here... accuracy (tightness of group), or point of impact (group in relation to bullseye) ?
Not trying to be a jerk but accuracy is really not tightness of group. While your 2 concepts are correct the names are wrong. Accuracy is your distance from a reference (how far away from your intended point of impact), and precision is your repeatability or "tightness of group". I bring it up because accuracy and precision are actually defined shooting terms.
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post #6 of 25 (permalink) Old 12-31-2019, 06:00 PM
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No problem TG, never too old to learn.
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post #7 of 25 (permalink) Old 01-01-2020, 07:43 PM Thread Starter
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Loridr I am looking for both and I appreciate the help from everyone.
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post #8 of 25 (permalink) Old 01-01-2020, 08:00 PM
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Quote:
Originally Posted by Bowhunter41 View Post
Loridr I am looking for both and I appreciate the help from everyone.



So if you want to improve (tighten) your groups, you'll need to experiment with your load (powder & projectile combination), and loading procedure (swabbing barrel, consistent seating of the projectile), etc.


To move your group towards your desired point of impact, follow simoncool instructions above.
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post #9 of 25 (permalink) Old 01-01-2020, 08:51 PM
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Variables for improving group size (in no particular order of importance):

-Round ball diameter

-Patch thickness

-Patch lube

-Powder granulation (2F vs 3F, primarily)

-Powder charge volume (70gr, 80gr, etc)

These can all bear what the gun produces for group sizes. Once you have that determined, then you can work on the sights.

You'll often find that the right combo for improving group size also starts to correct the point of impact for you, as well.

I shoot 120gr of 2F in my 62-caliber rifle. It's not because I want the thing to be a cannon...it's because that's where I get good groups and sights hitting as I want. The groups aren't noticeably better at 120 than they are at 90, but at 90 it's not quite at point of aim, where it is nicely hitting point of aim with the charge at 120. Since we're in the 21st Century and not the 18th Century, I don't have to be terribly concerned with conservation of powder. So...120 it is.

That particular rifle is a long, beefy rifle that was made specifically for me. Result is that charge produces very manageable recoil for me with that rifle.

If you're shooting full bore projectiles, such as maxiballs or PA Conicals or similar, you have little to work with besides powder charge/granulation.

As a GENERAL rule of thumb, shorter barrels will run 3F better than 2F. Smaller bore sizes will run 3F better than 2F. Longer barrels/larger bores....2F over 3F.

GENERAL rule of thumb. And there are always exceptions.
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post #10 of 25 (permalink) Old 01-01-2020, 09:11 PM
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Try to be consistent in your loading process. I swab with a damp patch and 2 dry patches EVERY TIME. That keeps my bore relatively consistent. I also try to practice my trigger pull so I am not jerking the trigger. "Watch" the bullet hit the target. You can't hit what you can't see. Aim small, miss small.
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