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  #1  
Old 06-11-2017, 12:58 PM
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Backpacker - Return To Zero



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If the barrel is not seated in the exact same position in the receiver, I was wondering why a barrel mounted RDS would return to zero any better than if mounted on the receiver. In my mind, it doesn't seem like there'd be any difference.

Has anyone done any RTZ testing with an RDS or magnified optic mounted in both locations?

Thanks!
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  #2  
Old 06-11-2017, 02:43 PM
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You may have answered your own question. If the barrel is not precisely aligned with the receiver every single time it is installed then a reciever mounted optic would not be properly aligned with the barrel. If the optic is mounted to the barrel then it is always in proper alignment with the barrel regardless of the barrel to reciever alignment.
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Old 06-11-2017, 09:56 PM
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I haven't done testing on both but I have played around with the backpacker optic mount. Taking the rifle apart and putting it back together just to check zero. I did it at least 7 times in a row and then fired 1 shot each time at 25 yards. Ended up with a really really small group. So in my opinion it passed.
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Old 06-16-2017, 06:06 PM
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With the OEM stock, if you properly adjust the mechanism that attaches the barrel and receiver per the manual, then I find no reason that an optic mounted to the receiver shouldn't exhibit good return-to-zero characteristics. This is true for my TD now but only AFTER I followed the instructions in the manual. In fact, I'm able the remove my Bug Buster scope (using its QD rings) from the receiver when it's not connected to the barrel, reassemble receiver and barrel, reinstall the scope and still not have to rezero. Just sayin'

Last edited by bluzman; 06-16-2017 at 06:12 PM.
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Old 06-18-2017, 09:06 PM
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Not sure if some guys are just shooting steel plates and they don't notice it or not. Bench resting mine at 40 yards there is definitely a change but it is small. Usually around half an inch. It can go up down left or right but it always changes. That is after letting the bolt go home at least 4 to 5 times before clambering a round. I think I'll stick with a barrel mounted optic since I small game hunt with mine and that's too much of a variation for me. But if your just plinking at steel plates or whatever I see no problem.
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Old 06-20-2017, 05:34 PM
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Originally Posted by M0833937 View Post
Bench resting mine at 40 yards there is definitely a change but it is small. Usually around half an inch. It can go up down left or right but it always changes. That is after letting the bolt go home at least 4 to 5 times before clambering a round.
I recall seeing someone's comment about variations in POI when bench resting on the fore end and their recommendation to bench rest aft of the receiver/barrel junction.
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Old 06-27-2017, 02:16 PM
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Took mine to the range for the second time today......... Skinner barrel peep sight and a Bushnell Tr25 red dot on the receiver....................sighted in last fall.

I view the Take Down as a emergency/ survival rifle........ small groups would be nice ...... not expecting teeny tiny groups... I've got other rifles for that.


Put it together and racked the bolt 6-7times before shooting...............

I put 20 "quick" rounds down range w/ the red dot..... at 50 yds got a "fist size" (2X3) group at 3 O'clock.. about 3.5 inches right of center. Tr-25 has a 3moa dot......covers 1 1/2 inchs at 50 yards......difficult to get a consistent POA on the approximately 6 inch black center.


doing some rough math..... a 1degree angle would produce a triangle with a base in excess or 36"if the sides were 50 yds long.........

I'll need to take it to the range and do some experimenting.

I did bench it on the fore end

Last edited by bam-bam; 06-27-2017 at 02:26 PM.
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  #8  
Old 06-27-2017, 03:02 PM
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Originally Posted by bluzman View Post
I recall seeing someone's comment about variations in POI when bench resting on the fore end and their recommendation to bench rest aft of the receiver/barrel junction.
When I quit taking it down and putting it back together after each group, it quit changing poi. I was shooting 5 shot groups, walking to the target to check it, then shooting another group. All while resting on the fore end. Realistically you can't expect the receiver and barrel to match up the exact same every time for this price point. But if you mount your red dot or scope on the barrel, the return to zero should always be the same (at least it has in my limited experience).
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Old 07-06-2017, 02:03 PM
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Got a chance to go back to the range this morning

Had removed the action from the stock ...... finger tightened the locking ring ...... removed the barrel and tightened 2 clicks.... still easy to remove..... took barrel out and tightened it 2 more clicks..... take down lever now "a bit of resistance" to retract and remove barrel....... remounted action in stock.........

Got to range ..... shooting 3" low at 25 yds ........ got it shooting "under the dot" of a Bushnell TRS25 mounted on receiver.......... 3moa dot covers about 1" at 25yds...........

took it apart ....... remounted barrel....... slingshotted the bolt 6X.......... first 5 rounds hit under the dot.........

disassembled the barrel a second time...... reattached..... slingshotted the bolt 5X......... next 5 rounds under the dot.........

NO hard point of aim...... but basically shooting under a 1.5 dot at 25yds........ easy to break 4" clays at 50yds........ can hit half and quarter clays better than 80% of shots .........................offhand!

Last edited by bam-bam; 07-06-2017 at 02:08 PM.
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