Author Topic: Tuned Trajectory Compensator. Please help me out here guy's. Just some input.  (Read 914 times)

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Offline DalesCarpentry

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I will be buying a Mueller 8.5x25x44 scope this week to put on my 243   24 inch bull Ultra Varmint. I was looking at their web site and they had a link to a company that makes BDC turrets. Have any of you used one of these Tuned Trajectory Compensator. If it works out for the 243 I will be buying one for the 204. Here is a link to their site. I was wondering what you guys think of them?  http://www.kentonindustries.com/
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Offline trotterlg

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Re: Tuned Trajectory Compensator
« Reply #1 on: July 07, 2007, 03:44:52 PM »
It will work for one bullet and one load. The turret is put on the scope so 100 on the turret is 0 at a 100 yards, then if it is closer or further you just click to the marks on the turret, 50, 200 400 etc.  Gets you close.  Good deal if you know the exact distance, but then you can also just hold over or under also.  I don't like them because they are not covered and stick up fairly high.  Larry
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Offline DalesCarpentry

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Re: Tuned Trajectory Compensator
« Reply #2 on: July 07, 2007, 03:59:01 PM »
I guess that they are not covered and stick up high would be a down fall. I think you would have to be careful how you store it and to look that it is on the same setting before you fire it. Do any of you know how you would remove the turret that comes with the scope? I would think it would be just a matter of unscrewing it. I am thinking of it because I see groundhogs out there that are 4, 5, 600 yards that I would like a crack at and would never attempt to shoot at now with my 204. I really need to invest in a range finder. I think with a range finder and these type of turrets I may have a chance of getting one at those distances.
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Offline GregP42

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Re: Tuned Trajectory Compensator
« Reply #3 on: July 07, 2007, 04:13:12 PM »
Dale,

Two things you really need to shoot long range, a range finder and a chronograph. With the chronograph you know what the true speed of your round is, from there you can build a trajectory table and a click chart. Then you use the range finder to see just how far it is away and you can set the scope.

Here is what my click chart looks like for the Swift and a scope that has 1/8 moa clicks.


   Range(yd)   Clicks
   ---------   ------
          0        0
         25       34
         50        9
         75        2
        100        0
        125        0
        150        1
        175        2
        200        5
        225        7
        250       10
        275       13
        300       16
        325       20
        350       23
        375       28
        400       32

Click chart generated for
Muzzle Velocity = 3870 ft/sec, BC = 0.242

So with something like that you have a good idea what to do for the ranges your shooting at.

Greg
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Offline DalesCarpentry

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Re: Tuned Trajectory Compensator
« Reply #4 on: August 07, 2007, 06:13:43 AM »
I did not get much feedback on this last time but I think this is a must have for the 243 Ultra Varmint With the Muller 8.5x25x44 Tactical scope. Please guy's give me some real input. I think I really want to try this. When you go to their site read over their Q and A section. I think if you were to read over that you might like the idea as much as I do. Here is the link again. http://www.kentonindustries.com/  Dale
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Offline Mac11700

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Dale:

I agree with Greg...If your going to get into the long range game...there are a few things you need more than BDC's...

First off...unless you actually shoot it at those distances...you will never know exactly what your rifle will do...It don't matter what your using...and practice does make perfect here...

Do you have a chronograph yet?

If you don't know how fast they are going..mil-dots or BDC's won't really work 100% and your having to guess...

Do you have a laser range finder yet?

Long range shooting you need to know how far away it is...if you don't have one...you'll have to guess where to hold...

Can you accurately gauge the wind speeds...Look at the tables in the manuals or on point blank...a little wind can move the bullet a-lot at 400-600 yards...If you can't gauge the wind..then you are guessing again.... You need a small wind speed meter to accurately know the hold off for it...

Long range shooting isn't 250 yard shots...and out to 300 yards...you really don't need the BDC's any ways...

Mac

You can cry me a river... but...build me a bridge and then get over it...

Offline d_hiker

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Dale,

Just buy it and tell us how it works.  But you do need a rangefinder to get your distance unless you are hunting the same place and have previously measured off reference spots.  This is the same concept that BSA is using on their Sweet series of scopes.  I have a Sweet 17 that I took p-dog shooting and it did good, we also had a range finder and a small wind meter.  Also, the Sweet 17 is calibrated for the factory 17grain bullets, so when I switched to the 20 grain bullets it was off a bit.  Cabelas is also offering scopes that have bullet drop compensators.  Many years ago, I think early 1970s Bushnell came out with a scope that had a Bullet Drop Compensator.  Just considerate it another tool and use it as it was meant to be.  Developing a click table has the advantage of learning more about your loads and how they behave and also allows you to change your load or have multiple loads and not have to worry about which turret you have on the scope.
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Offline Ireload2

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I would much prefer a scope originally manufactured with high quality target adjustments for long range use.
Once you have settled on an accurate load at your normal shooting ranges shoot it out to extreme range to get an idea of how
big your groups are. If you still think your rifle is accurate enough then buy the scope and develop a click chart.