Major Sharpe Posted June 12, 2019 Report Share Posted June 12, 2019 I have a Tikka 17 HMR which is zeroed at 100 yards and was wondering if a zero at 125 yards would give a practical Point Blank Range. I get 30 yards to 115 yards with a 100 yard zero. I was told that a 125 yard zero would give something like 12 yards to 140 yards. Anyone any thoughts on this? Quote Link to comment Share on other sites More sharing options...
Scully Posted June 12, 2019 Report Share Posted June 12, 2019 If you feel there's something you can't get closer to than 140 yds, then go for it. Quote Link to comment Share on other sites More sharing options...
Rewulf Posted June 12, 2019 Report Share Posted June 12, 2019 Dont know about 12 yards TBH , 20 if you keep your scope as low as possible, say 1.5 inch. The problem is , youre shooting an inch high between 60 and 100, which isnt the end of the world if you know your range to target. 100 yards is your best all rounder in my opinion, unless youre going out past 120 regularly. Quote Link to comment Share on other sites More sharing options...
Flyboy1950 Posted June 12, 2019 Report Share Posted June 12, 2019 I cant give you the exact figures that you require, but assuming a 17 grain polymer bullet with a sight line 1.5" above the centre line will, if sighted in at 125 yds, be -0.11" at 25 yards and -1.46" at 150 yards. The intermediate ranges will produce at 50 yards +0.65", at 75 yds +0.96" and at 100 yards +0.78". These figures have been lifted from J E Houses, Gun Digest on the .22 rimfire. Hope they help FB Quote Link to comment Share on other sites More sharing options...
snow white Posted June 12, 2019 Report Share Posted June 12, 2019 Flyboy Come plenty different guns the 17 is more flat than the 22 . Quote Link to comment Share on other sites More sharing options...
Rewulf Posted June 12, 2019 Report Share Posted June 12, 2019 12 minutes ago, snow white said: Flyboy Come plenty different guns the 17 is more flat than the 22 . The reference material might be for a .22, but the ballistics for a 17 g 2500 fps round are correct at what he says. Quote Link to comment Share on other sites More sharing options...
Major Sharpe Posted June 12, 2019 Author Report Share Posted June 12, 2019 1 hour ago, Scully said: If you feel there's something you can't get closer to than 140 yds, then go for it. It's not the far distance so much as the closer stuff. I have missed seemingly easy shots when a rabbit has appear at say 20 yards. 100 yards is the furthest distance I regularly shoot at. Quote Link to comment Share on other sites More sharing options...
Rewulf Posted June 12, 2019 Report Share Posted June 12, 2019 Just now, Major Sharpe said: It's not the far distance so much as the closer stuff. I have missed seemingly easy shots when a rabbit has appear at say 20 yards. 100 yards is the furthest distance I regularly shoot at. Then keep your hundred yard zero and learn the holdovers for the close shots, its all about scope height , as the lower it is the less you need at the close in ranges. Quote Link to comment Share on other sites More sharing options...
Major Sharpe Posted June 12, 2019 Author Report Share Posted June 12, 2019 2 minutes ago, Rewulf said: Then keep your hundred yard zero and learn the holdovers for the close shots, its all about scope height , as the lower it is the less you need at the close in ranges. yes I think you right, I put out some targets and work it out. Thank you. Quote Link to comment Share on other sites More sharing options...
Rewulf Posted June 12, 2019 Report Share Posted June 12, 2019 Just now, Major Sharpe said: yes I think you right, I put out some targets and work it out. Thank you. Ill give you a rough idea. If your scopes centreline is at 1.5 inch off the centreline of the barrel (Id be surprised if its any less) at 100 yard zero, the bullets trajectory should be dead on at 40 yards too. So you could say that at roughly 20 yards its .75 inch under. At 2 inch off the centre line the 'crossover is 45 yards, and should be around 1 inch at 22.5 yards. Hope this helps. Quote Link to comment Share on other sites More sharing options...
Major Sharpe Posted June 12, 2019 Author Report Share Posted June 12, 2019 2 minutes ago, Rewulf said: Ill give you a rough idea. If your scopes centreline is at 1.5 inch off the centreline of the barrel (Id be surprised if its any less) at 100 yard zero, the bullets trajectory should be dead on at 40 yards too. So you could say that at roughly 20 yards its .75 inch under. At 2 inch off the centre line the 'crossover is 45 yards, and should be around 1 inch at 22.5 yards. Hope this helps. Thank you very much, very helpful Quote Link to comment Share on other sites More sharing options...
Scully Posted June 12, 2019 Report Share Posted June 12, 2019 28 minutes ago, Major Sharpe said: It's not the far distance so much as the closer stuff. I have missed seemingly easy shots when a rabbit has appear at say 20 yards. 100 yards is the furthest distance I regularly shoot at. I had a chart with the comparable trajectories of all the rf cartridges somewhere, showing the most practical zero for each cartridge. It was a very handy thing to have; I’m sure there must be one to be found on the web. Quote Link to comment Share on other sites More sharing options...
Flyboy1950 Posted June 12, 2019 Report Share Posted June 12, 2019 The statistics quoted, if you read my post was for a 17 grain HMR. I appreciate that a 20 grain HMR bullet is different. Major Sharpe asked specifically for the 17 grain HMR. FB. Quote Link to comment Share on other sites More sharing options...
Perazzishot Posted June 12, 2019 Report Share Posted June 12, 2019 (edited) Why not just leave it at 100yds but set up targets at 10yds, 20yds and 30yds and work on the high/low placement it won't be much. 150 yd zero on a HMR will be pretty unstable in anything but flat calm conditions. Edited June 12, 2019 by Perazzishot typo Quote Link to comment Share on other sites More sharing options...
Ultrastu Posted June 12, 2019 Report Share Posted June 12, 2019 Here is the info i need With an average scope hight of 1.7 inches Zeros of 100 .110 .120 .130 yds And the trajectory in inches Personally id zero at 110 yds Meaning your pb range is 20 to 130 yds With little risk of going over the top of a rabbit head at 75 yds. Quote Link to comment Share on other sites More sharing options...
Dave-G Posted June 12, 2019 Report Share Posted June 12, 2019 As most of the places I shoot are small fields or undulating land, shooting from a quiet petrol 4WD that gets me in to about 50 yards of rabbits, I prefer a 90 yard zero so I just point and shoot without even thinking about holdover or under. Quote Link to comment Share on other sites More sharing options...
team tractor Posted June 12, 2019 Report Share Posted June 12, 2019 I zero at 100 and it’s job done. I aim a little low at 70 yards and a bit high at 130. Quote Link to comment Share on other sites More sharing options...
Ultrastu Posted June 12, 2019 Report Share Posted June 12, 2019 (edited) If your happy with a 1.5 inch kill zone .so 3/4 up and 3/4 down (perfect for body shots on rabbits ) Then a 120 yd zero would be ideal and there is even a nice hawke ret that works out nicely in 25 yd increments Gets you pbr from 20 to 135 yds before you have to think about any hold over or under. Just aim for the boiler room area. And bang down she goes . Edited June 13, 2019 by Ultrastu Quote Link to comment Share on other sites More sharing options...
Dougy Posted June 12, 2019 Report Share Posted June 12, 2019 get out into the field with some paper targets from 50yds to 150yds + at 20yrd intervals and see in real times what the actual drops will be. keep the targets, keep notes and practice at different ranges. Apps are OK (I use them out to 800yds) put dont rely on them all to be MOR (minute of rabbit) most will need tweaking one way or another. Quote Link to comment Share on other sites More sharing options...
Konnie Posted June 12, 2019 Report Share Posted June 12, 2019 Have a look at "varmint Al's website it has lots of calculations for 17HMR Quote Link to comment Share on other sites More sharing options...
Major Sharpe Posted June 12, 2019 Author Report Share Posted June 12, 2019 4 hours ago, Ultrastu said: If your happy with a 1.5 inch kill zone .so 3/4 up and 3/4 down (perfect for body shots on rabbits ) Then a 20 yd zero would be ideal and there is even a nice hawke ret that works out nicely in 25 yd increments Gets you pbr from 20 to 135 yds before you have to think about any hold over or under. Just aim for the boiler room area. And bang down she goes . Thank you for this. I opted to zero at 120 yards, then set out paper targets to check the drop. The PBR you quoted was spot on. Also I used to zero from a makeshift folding bench (workmate and a piece of ply) and a folding chair, but recently came across an article that said, if you shoot from sticks, zero from sticks, don't expect a bench zero to be the same when using sticks. So tonight, I zeroed from my trigger sticks and got to say, I'm pleased with the result. Quote Link to comment Share on other sites More sharing options...
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