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recoil springs on unertl type scopes (Read 9159 times)

bnice Frequent Elocutionist Offline Posts: 1859 Location: Iowa Joined: Nov 30^th, 2006	Re: recoil springs on unertl type scopes Reply #15 - Mar 26^th, 2014 at 8:35am	Print Post
	Point of impact change is more dependent on how straight to the bore your blocks are installed. Scope blocks are usually a little skewed to some degree.


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boats Frequent Elocutionist Offline Posts: 7552 Location: Virginia Joined: Apr 23^rd, 2004	Re: recoil springs on unertl type scopes Reply #16 - Mar 26^th, 2014 at 10:08am	Print Post
	All a sight of any kind does is measure angles. 3 of them, line of sight, line of departure, and drop on target. If you make one side of the triangle shorter - different return to battery. It changes the angles. May be a small change but I can tell you from experience 1/4 inch difference in return to battery can be seen on target at 200 yards Boats


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marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 16157 Location: Oregon Joined: Feb 2^nd, 2009	Re: recoil springs on unertl type scopes Reply #17 - Mar 26^th, 2014 at 10:09am	Print Post
	JLouis wrote on Mar 25^th, 2014 at 6:26pm: Point of impact does indeed change based on my experiance with the several scopes that I have owned both Lyman and Unertl and points have indeed been lost. Just my personnel experiance and there might also be those that might not notice the ill affect nor have any? JLouis I've caught myself being lax about returning the scope after firing, and when my shots started to get "flyers" I realized I had not returned the scope to it's original position. Once returned the groups fell back in place, so I'm a believer that it indeed changes POI.

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rr2241tx Full Member Offline Posts: 108 Location: San Marcos Joined: Mar 27^th, 2012	Re: recoil springs on unertl type scopes Reply #18 - Mar 26^th, 2014 at 12:09pm	Print Post
	The reason I asked how much difference it makes is sometimes I forget to pull the scope back on my 32-40 schuetzen rifle and I am curious how much it actually changes the point of impact. Seems the line of sight is the hypotenuse of the triangle and 1 inch or less in 7200 inches is a pretty small change as long as the scope is square to the bore and level.


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boats Frequent Elocutionist Offline Posts: 7552 Location: Virginia Joined: Apr 23^rd, 2004	Re: recoil springs on unertl type scopes Reply #19 - Mar 26^th, 2014 at 12:19pm	Print Post
	It's a small change and impact difference I noticed may well be shot falling on one side or the other of the rifles normal 200 yard group. Could be more mental difference than physical. From my Hydrographic survey days do know when you change the distance of one leg it changes the other angles. Probably over thinking it. Boats


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