kent Posted September 26, 2012 Report Share Posted September 26, 2012 Came across something today with a mates gun that i have never before experianced, to be fair i think there is another issue to sort on it, yet bringing it in on a reasonable zero on 55 grn factory we switched loads to another brand same 55grn weight and it lirally left the paper - yep over 8" at 100yds. Now i realise each load has its own zero but i think the most i have ever experianced personally is around 2" shift between loads at 100yds. Does anyone find this sort of difference with a rifle they have owned? Quote Link to comment Share on other sites More sharing options...
al4x Posted September 26, 2012 Report Share Posted September 26, 2012 Nope that sounds massive, by chance did you try one of the first set afterwards and confirm the shot went back to the previous group Quote Link to comment Share on other sites More sharing options...
pigeon pete Posted September 26, 2012 Report Share Posted September 26, 2012 different powder charge ? or heads /could be boat tail or flat base ,there is many very-ants ,weve had it with surplus ammo RG and nato ammo Quote Link to comment Share on other sites More sharing options...
theosmith Posted September 27, 2012 Report Share Posted September 27, 2012 my 223 was zeroed using solid remingtons 55g then i changed ammo to remmington 55g expanding ammo and shot 8"l lower but was still central to each other Quote Link to comment Share on other sites More sharing options...
kent Posted September 27, 2012 Author Report Share Posted September 27, 2012 different powder charge ? or heads /could be boat tail or flat base ,there is many very-ants ,weve had it with surplus ammo RG and nato ammo it will be non of the above. I am 95% sure i know were the issue lies. just wondering how many if any members have found such drasic shifts, that wasn't a fault Quote Link to comment Share on other sites More sharing options...
kent Posted September 27, 2012 Author Report Share Posted September 27, 2012 Nope that sounds massive, by chance did you try one of the first set afterwards and confirm the shot went back to the previous group yes it is, you perhaps thinking along same lines as myself. Its nothing to do with the scope and mounts BTW. Not being a secret squirrel and will report further on it when i can confirm the issue is as i suspect Quote Link to comment Share on other sites More sharing options...
pigeon pete Posted September 27, 2012 Report Share Posted September 27, 2012 yes it is, you perhaps thinking along same lines as myself. Its nothing to do with the scope and mounts BTW. Not being a secret squirrel and will report further on it when i can confirm the issue is as i suspect what do you suspect ? Quote Link to comment Share on other sites More sharing options...
kent Posted September 28, 2012 Author Report Share Posted September 28, 2012 what do you suspect ? like i say i will post fully when i can confirm on this thread, Moves are afoot Quote Link to comment Share on other sites More sharing options...
gixer1 Posted September 28, 2012 Report Share Posted September 28, 2012 Home loaded "55" gr??? Quote Link to comment Share on other sites More sharing options...
Albert 888 Posted September 28, 2012 Report Share Posted September 28, 2012 Home loaded "55" gr??? No winchester and ppu 55 gr. Quote Link to comment Share on other sites More sharing options...
kent Posted September 29, 2012 Author Report Share Posted September 29, 2012 I will just say i will eat my hat if its ammo creating such a different point of impact at 100 yds. I am interested in how much shift people have experianced in this regards though, i have never been like 8" + off at 100yds even when working with very different handloads 3" would be a lot in my experiance. It is non the less an interesting subject, i supose if a particular bullet tumbled it might happen though? Quote Link to comment Share on other sites More sharing options...
wymberley Posted September 29, 2012 Report Share Posted September 29, 2012 Calibre, twist rate, stabilization? Quote Link to comment Share on other sites More sharing options...
Gregthegreat Posted September 29, 2012 Report Share Posted September 29, 2012 Sounds like stabilisation issues. Did you get any rounds on target and see of the holes were clean? Quote Link to comment Share on other sites More sharing options...
kent Posted September 29, 2012 Author Report Share Posted September 29, 2012 Before this goes crazy, let me explain The gun shifted wildly from running out of winchester 55 grn though i have to say we were struggling (which were passable but not great) to Privi 55's. I suspect the gun would have still shifted with the winnies but no more in box. The front action screw is contacting the pillar ID on the front edge under pressure and i suspect this is preventing proper or even any recoil lug contact. As the screw is taking the recoil forces the zero point is effectively moving. The gun is to be tested with another batch of winnies then its gonna be a three stage bedding job to find the issue for sure prove it and cure it. I seriously doubt its stabilisation coz the group would have to change to about 16" at 100yd and it already shot one lot of 55's stable although of a different brand the holes were full circular Will post again when situation and my thoughts is proven correct or incorrect Quote Link to comment Share on other sites More sharing options...
wymberley Posted September 29, 2012 Report Share Posted September 29, 2012 I got the impression that we might be expecting something a little out of the ordinary. Quote Link to comment Share on other sites More sharing options...
kent Posted September 29, 2012 Author Report Share Posted September 29, 2012 I got the impression that we might be expecting something a little out of the ordinary. ah, you are getting to know me too well LOL Quote Link to comment Share on other sites More sharing options...
pigeon pete Posted September 29, 2012 Report Share Posted September 29, 2012 ah, you are getting to know me too well LOL we all know you well my friend lol ;-) Quote Link to comment Share on other sites More sharing options...
Albert 888 Posted October 4, 2012 Report Share Posted October 4, 2012 The rifle in mention is now shooting a treat,3 shot groups at 100yrds in a 1/2" group with altering wind and a new mod and a novice pulling the trigger with 55gr ppu Quote Link to comment Share on other sites More sharing options...
kent Posted October 4, 2012 Author Report Share Posted October 4, 2012 there you go, it appears the last owner might well have missed this small easy fixed issue- a lot of so called "gunsmiths" might also. A centrefire rifle cannot be expected to perform bearing its recoil and vibration through a relitively small machine screw. You have a good rifle there for the money my mate no question! Quote Link to comment Share on other sites More sharing options...
Albert 888 Posted October 4, 2012 Report Share Posted October 4, 2012 I love it ,May have to go the gym to carry it as a hunter with the mod and bipod on tho.Cant wait to get on the range and do the 100,200,300m with it.Scope is great for 100yrds thanks may need a bigger mag to see the bullet holes at 300. Oh and its running good on ppu. Home loads soon can only get better. Quote Link to comment Share on other sites More sharing options...
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