Click Here for AirGunHome.com Main Page AirGunHome.com: THE Worldwide Airgun Forum

Air Gun Home Forum Index » General Air Gun Questions and Topics » Having Trouble dialing in my Scope Goto page 1, 2  Next    View previous topic :: View next topic  Having Trouble dialing in my Scope   Posted: Sun Apr 12, 2009 8:13 pm Mark5043 Silver Status Member Joined: 12 Apr 2009 Posts: 1379 Hi guys, Just installed a new scope on my Ruger Airhawk.It is a Hammer's 3-9x power.The issue is that when sighting in at 7.5 yards my groups are 1.5 inches below the desired point of impact.The height dial is maxed out,so I can't raise the point of impact any further.I have heard that springers usually have a slight downward angle of the barrel,which is common from what I understand.The scope that came with the rifle I had no issues with,I just wanted to upgrade the scope.How do I correct this problem???   Posted: Sun Apr 12, 2009 10:45 pm Slavia Moderator Joined: 31 Mar 2008 Posts: 4382 Location: Waseca, Minnesota, USA Welcome to the forum, Mark5043! You might try an adjustable scope mount: http://www.straightshooters.com/rws/r2300565cmount.html http://www.pyramydair.com/blog/2007/07/bsa-adjustable-scope-mount.html http://www.pyramydair.com/blog/2007/07/b-square-adjustable-scope-mounts-part-1.html http://www.airgunsbbguns.com/GAMO_Scope_Mount_Medium_Adjusting_Base_1_44_mm_p/gamo-1pc.htm 7.5 yards is pretty close. You may want to zero at a longer range (say, 20-25 yards) and estimate the close shots. _________________ ¡Listo! ¡Apunte! ¡Fuego!   Posted: Sun Apr 12, 2009 10:47 pm Jaxom Senior Member Joined: 06 Aug 2008 Posts: 927 Try this too, I just followed the steps with my gamo scope on my 2300. Worked great! http://pyramydair.com/site/articles/scopes-part3/ _________________ .22 2300kt Crosman Custom   Posted: Sun Apr 12, 2009 11:04 pm rsterne Moderator Joined: 15 Jan 2008 Posts: 2998 Location: Coalmont, BC Simply install a shim under the scope in the rear ring.... about 0.017" will bring you to zero if the rings are 3" apart.... Since the rifle should be shooting a bit low at 7.5 yards anyway, any shim in the 0.015" to 0.020" range will get you within the adjustment range of your scope.... Bob _________________ Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since! Airsonal: Too many to count!   Posted: Mon Apr 13, 2009 5:47 am Crosman140 Senior Member Joined: 13 Dec 2008 Posts: 663 Location: USA Yeah, scoping at 7.5 yards is pretty close. I'd say unless your targets are typically 7.5 yards in distance, zero the scope at 15-20 yards for distance shooting and do as Slavia mentioned and estimate the closer shots by shooting a little high. With practice this will feel natural. Shimming the rear scope ring will do the job too as mentioned. _________________ My Critter Gitters .22 Crosman 140 (1955) .177 Crosman G1 (2009) .177 Crosman 1377 (2009) .177 Daisy 880 (2019) BB Daisy Red Ryder (2012) BB Daisy Buck (2019) BB Crosman 1600 (1980) BB Marksman 1010 (1979)   Posted: Mon Apr 13, 2009 9:20 am thepaladin Senior Member Joined: 12 Dec 2007 Posts: 930 Location: TN USA Also, how heavy are the pellets you're using? Could be a pointless question but if you're using the extra heavies and the rifle is underpowered the sight point will stay above strike point at lowest level. In other words the rifle is dropping a heavy pellet. I had that happen a few years ago with a rifle I "over estimated" the power on. _________________ "All that is necessary for the triumph of evil is that good men do nothing." (Edmund Burke)   Posted: Mon Apr 13, 2009 10:29 am rsterne Moderator Joined: 15 Jan 2008 Posts: 2998 Location: Coalmont, BC With a "average" scope setup (1.5" above the bore), shooting an "average" pellet (BC of 0.015) at 500 fps, a 7.5 yard zero is also a 25 yard zero.... Even at 1000 fps, with a 25 yard zero the pellet would only be 3/4" low at 7.5 yards.... I would say he has to shim or buy an adjustable mount.... I use shims, I'm a cheap bastage.... Bob _________________ Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since! Airsonal: Too many to count! Re: Having Trouble dialing in my Scope   Posted: Mon Apr 13, 2009 3:17 pm Mark5043 Silver Status Member Joined: 12 Apr 2009 Posts: 1379 Mark5043 wrote: Hi guys, Just installed a new scope on my Ruger Airhawk.It is a Hammer's 3-9x power.The issue is that when sighting in at 7.5 yards my groups are 1.5 inches below the desired point of impact.The height dial is maxed out,so I can't raise the point of impact any further.I have heard that springers usually have a slight downward angle of the barrel,which is common from what I understand.The scope that came with the rifle I had no issues with,I just wanted to upgrade the scope.How do I correct this problem??? Thanks guys for all your help! I fixed the problem by shimming the rear scope mount. It's dead on! Hit I target the size of a nickel at 50 ft.My wife is pissed though because it was in our back yard!Looks like I'm in the s--t house again!   Posted: Mon Apr 13, 2009 3:20 pm broommaster2000 Moderator Joined: 10 Mar 2007 Posts: 5714 Location: City of Groningen, Groningen, The Netherlands Welcome aboard Mark, I see that the dudes around here have already been helping you out. Good luck with that wife of yours too. _________________ BIG GAP Re: Having Trouble dialing in my Scope   Posted: Mon Apr 13, 2009 8:32 pm sniper Silver Status Member Joined: 28 Nov 2008 Posts: 3752 Location: Star, Idaho Mark5043 wrote: [quote=" Thanks guys for all your help! I fixed the problem by shimming the rear scope mount. It's dead on! Hit I target the size of a nickel at 50 ft.My wife is pissed though because it was in our back yard!Looks like I'm in the s--t house again! pissed?? where are you supposed to shoot?? _________________ I believe in gun control, If there's a gun around I want to be controlling it.......   Posted: Tue Apr 14, 2009 12:18 am yourdaddyjoe Supporting Member Joined: 26 May 2008 Posts: 4027 Location: Tatorville, USA Just set up a range in doors... Use her favorite table cloth as a back drop...... Scratch that... Just buy a gun for her and have her shoot with you... Scratch that... Girls shoot better than most of us guys and then all she will do is rag on you... Your screwed.... _________________ Say "NO" to BB Gun Wars... Quid Pro Quo Rule: An eye for an eye... www.HPASports.com www.Facebook.com/hpasports   Posted: Tue Apr 14, 2009 3:56 am Mark5043 Silver Status Member Joined: 12 Apr 2009 Posts: 1379 yourdaddyjoe wrote: Just set up a range in doors... Use her favorite table cloth as a back drop...... Scratch that... Just buy a gun for her and have her shoot with you... Scratch that... Girls shoot better than most of us guys and then all she will do is rag on you... Your screwed.... I wonder if the flower pots in the yard are out of the question as well! LOL!   Posted: Tue Apr 14, 2009 5:03 am Crosman140 Senior Member Joined: 13 Dec 2008 Posts: 663 Location: USA Heh, in my town, we have a projectile law. You can NOT shoot anything beyond a toy dart gun with suction cups on the end. So, shooting in my backyard is a no no. And I "never" shoot in my backyard. But I do have a 10M range in the basement. But no tree rats down there. _________________ My Critter Gitters .22 Crosman 140 (1955) .177 Crosman G1 (2009) .177 Crosman 1377 (2009) .177 Daisy 880 (2019) BB Daisy Red Ryder (2012) BB Daisy Buck (2019) BB Crosman 1600 (1980) BB Marksman 1010 (1979)   Posted: Tue Apr 14, 2009 7:38 am Mark5043 Silver Status Member Joined: 12 Apr 2009 Posts: 1379 rsterne wrote: Simply install a shim under the scope in the rear ring.... about 0.017" will bring you to zero if the rings are 3" apart.... Since the rifle should be shooting a bit low at 7.5 yards anyway, any shim in the 0.015" to 0.020" range will get you within the adjustment range of your scope.... Bob Thanks Bob.I did that and now I'm dialed in!   Posted: Tue Apr 14, 2009 8:13 am yourdaddyjoe Supporting Member Joined: 26 May 2008 Posts: 4027 Location: Tatorville, USA Mark5043 wrote: ...I wonder if the flower pots in the yard are out of the question as well! LOL! I missed once... Got her bird feeder... Heck.. I was just protecting it from a limb rat... at least, that's my story... and I'm sticking to it... Oh... and BTW... Welcome aboard Mark! _________________ Say "NO" to BB Gun Wars... Quid Pro Quo Rule: An eye for an eye... www.HPASports.com www.Facebook.com/hpasports Having Trouble dialing in my Scope     Air Gun Home Forum Index » General Air Gun Questions and Topics You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum All times are GMT - 5 Hours   Page 1 of 2   Goto page 1, 2  Next All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First  Select a forum Main Forums----------------AirGunHome Q&AGeneral Air Gun Questions and TopicsPicture GalleryTarget Shooting: Casual, Fun and CompetitionHunting, Pest Control, Varminting People/Events/Airgun Issue Discussion----------------Introduce YourselfThe BS TopicClubs/Events/Regional/Political Airgun Issues Maintenance, Modification and Reviews----------------RiflesPistolsAntique, Collector and Novelty AirgunsBB GunsPellets/AmmoOpticsAccessoriesAirgun Smithing Buy, Sell or Trade Forums----------------For SaleWant to Buy   Note: If you are seeing "Please enter your username and password to log in." Your browser cookies have been reset or you need to register to access the topic in question. Use the 'Register' button near the top left of this page. Click Here for AirGunHome.com Main Page Powered by phpBB © 2001-2004 phpBB Group Partial Styling Supplied by Vjacheslav Trushkin Themes Database.