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POI shift with Magneto Speed
#5837067
07/18/15 01:08 PM
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Joined: Nov 2011
Posts: 3,637
DStroud
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Since there has been some discussion on the forum about this I though I would post some pictures from yesterday afternoon sighting in two Horizon built 300 Win mag's. First picture showing speeds... One shot was clean/cold barrel.... I assume Derrick cleaned it. Now the 3 shots with data. Took off the chronograph and fired one more to see where it would impact. Not much change. Then I switched to a different 300 WM and fired 3 shots with and two without and you can see results. I was aiming at the hole punched in the target.... I missed....5 times
Last edited by DStroud; 07/18/15 01:10 PM.
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."
Jack O'Connor 1963
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Re: POI shift with Magneto Speed
[Re: DStroud]
#5837161
07/18/15 02:48 PM
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Joined: Dec 2008
Posts: 4,507
syncerus
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Nice info. That's good information.
NRA Patriot Benefactor & DSC Lifer
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Re: POI shift with Magneto Speed
[Re: DStroud]
#5837197
07/18/15 03:26 PM
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Joined: Jun 2011
Posts: 33,956
Buzzsaw
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MYTH BUSTED !!!!!! Great info Big "D" !!!
SPACE FOR RENT
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Re: POI shift with Magneto Speed
[Re: DStroud]
#5837246
07/18/15 04:02 PM
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Joined: Dec 2008
Posts: 41,171
J.G.
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What's the barrel contour?
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
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Re: POI shift with Magneto Speed
[Re: DStroud]
#5837249
07/18/15 04:03 PM
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Joined: Dec 2008
Posts: 41,171
J.G.
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THF Celebrity
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Oh, and good shooting and good work by the gunsmith!
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
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Re: POI shift with Magneto Speed
[Re: Buzzsaw]
#5837333
07/18/15 05:20 PM
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Joined: Mar 2012
Posts: 3,809
Cleric
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MYTH BUSTED !!!!!! Great info Big "D" !!! Well not really. Since certain combinations have lead to poi shift, just this one did not. Not sure if it's driven by the speed or size of the bullet. I wanna play with my new 300 . Hopefully next weekend
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Re: POI shift with Magneto Speed
[Re: Cleric]
#5837515
07/18/15 08:09 PM
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Joined: Nov 2011
Posts: 3,637
DStroud
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MYTH BUSTED !!!!!! Great info Big "D" !!! Well not really. Since certain combinations have lead to poi shift, just this one did not. Not sure if it's driven by the speed or size of the bullet. I wanna play with my new 300 . Hopefully next weekend Correct the second rifle did have a shift in POI and I will say that is most instances there is and from what I have seen its usually vertically up about an inch. The second rifle exhibited about what I normally see. Jason both of these were Sendero weight fluted barrels. Actually from the description Chad mentioned in the chronograph post I am wondering if you say mounted the bayonet at a 90 degree angle if you could make the bullet mover left to right etc. Can' t see a reason to do so but would be an interesting experiments.
Last edited by DStroud; 07/18/15 08:14 PM.
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."
Jack O'Connor 1963
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Re: POI shift with Magneto Speed
[Re: DStroud]
#5837798
07/19/15 12:50 AM
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Joined: Dec 2008
Posts: 41,171
J.G.
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Sendero has some meat on the bone.
I'd like to see what it does with a #0, 1, 2, or 3.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
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Re: POI shift with Magneto Speed
[Re: DStroud]
#5840095
07/20/15 10:06 PM
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Joined: May 2010
Posts: 1,732
HorizonFirearms
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Good work DStroud, They were both clean when you got them, and good shooting.
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Re: POI shift with Magneto Speed
[Re: DStroud]
#5840098
07/20/15 10:08 PM
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Joined: May 2010
Posts: 1,732
HorizonFirearms
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Both barrels were 4/5 contours. Fluted little different and the one with the point change was 1 inch longer
Last edited by HorizonFirearms; 07/20/15 10:08 PM.
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Re: POI shift with Magneto Speed
[Re: DStroud]
#5841254
07/21/15 04:46 PM
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Joined: Feb 2009
Posts: 119
msj7x57
Woodsman
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Woodsman
Joined: Feb 2009
Posts: 119 |
I just got the magnetospeed sporter model. I tried it out last weekend on a lwt contour 6.8spc AR and had about a 1.75" poi shift. I don't mind it at all, this is so much easier that messing around setting up skyscreens!
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