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im a little confused about scopes
varian
Member Posts: 2,263 ✭✭✭✭
i recently bought a burris droptine scope and did not notice the word "rimfire" in the ad. literature with the scope states it is focused at 50yds. i can see for about 200yds from my backdoor. looking thru the scope everything to that range seems to focus quite well, so does anyone have an idea of what exactly they are referring to for the 50yd focus.
Comments
If you always look through the center of the scope you will not have any problems with a 50 yard parallax setting. I've been using a "rimfire" scope on a short range deer carbine for years w/o any noticeable issues.
ya'll have me slightly more confused. i did go to the burris web site and they specifically stated focus for 50 yds. i thought focus and parallax were two different things.
Here's an example of a parallax issue: When my Granddaughter began practicing prior to her first deer hunt, her hits were all over the target w/o any consistent grouping. After several sessions, this wasn't improving but I began to notice something. Being small, she was not getting any sort of "cheekweld" and no solid reference for centering her eye in the scope's plane.
Even with a centerfire scope with parallax pre-set for 100+ yards, the extreme and inconsistent off center positioning of her eye was causing a 2 MOA rifle/scope combination to throw a 12+" group. Parallax is a mechanical adjustment but can't compensate for such extremes in off-center eye alignment. FWIW, a 6" length of "pool noodle" split and taped to the stock comb fixed this issue immediately.
Re: the "focus"
That's obviously misleading and incorrect language in the manufacturer's info. Focus has nothing to do with parallax and is a personal fitment sort of thing.
okay then its not just me confused if even the manuf. misuses the terms focus and parallax. but seriously thank you guys for your explanations of parallax, i feel i now have a much better understanding of the issue.
and more confusion about parallax and focus by Bushnell. They should be ashamed of themselves, but if you have ever had any experience with Bushnell Customer Service you will find out they never get ashamed of anything, especially blowing smoke and hyping up sales.
here is a copy and paste example of Bushnell specs about Bushnell calling the SF (side focus) on one of their rim scopes focus in one sentence and then side parallax iN another sentence. Note the next to the last sentence, SIDE PARALLAX FOCUS
Product Info for Bushnell Rimfire Optics 3-9x40mm Side Focus Riflescope with 3 BDC Turrets
Your rimfire rifle deserves a riflescope designed to work perfectly with its shooting style, and the Bushnell Rimfire Optics 3-9x40mm Side Focus Riflescope is the ideal option to ensure perfect target acquisition. Great for a wide variety of shooting applications, these Rimfire Rifle Scopes created by Bushnell feature a Multi-X reticle and a versatile power range for an excellent shot time and time again. Three bullet drop compensating turrets ensure top-notch performance every time you enter the field with the Bushnell Rimfire Optics 3-9x40mm Side Focus Scope. When precise shot placement is your end goal, hit your target every time with the Bushnell Rimfire Optics 3-9x40mm Side Focus Riflescope with Multi-X Reticle.
Specifications for Bushnell Rimfire Optics 3-9x40mm Riflescope with 3 BDC Turrets:
Finish:MattePower x Obj. Lens:3-9x 40mmReticle:Multi-XLens Coating:Multi-CoatedTube Diameter:1inParallax Adjustment:SideField of View:31ft@100yds/10.5m@100m @3x / 9.4ft@100yds/3.2m@100m @9xWeight:20.4oz/580gLength:12.2in/310mmEye Relief:3.9in/100mmExit Pupil:13mm@3x / 4.4mm@9xClick Value:.25in@100yds/7mm@100mAdj Range:80in.@100yds/2mm@100mMounting Length:4.8in/127mmFocal Plane:Second
Features of Bushnell Rimfire Optics 3-9x40mm Side Parallax Focus Riflescope:
Alignment with the scope is everything.