trucraft Posted April 16, 2014 Report Share Posted April 16, 2014 Anyone what to give me their opinion on this chrono? I'm the market for a new chrono and got it down to Magneto, Millennium or Superchrono. I know lots of people like the Magneto but i'm not sold on it yet as it changes POI therefore I don't have confidence in shooting groups. Link to comment Share on other sites More sharing options...
jcampbellsmith Posted April 16, 2014 Report Share Posted April 16, 2014 MagnetoSpeed wins hands down at the minute. The FTR expert that guides me swears by his MagnetoSpeed. Regards JCS Link to comment Share on other sites More sharing options...
gbal Posted April 16, 2014 Report Share Posted April 16, 2014 Google review of "Oehler 35,magnetospeed,superchrono'..it's from Long range only.com In general,Oehler and magnetospeed were closely agreed esp in mid range speeds (3000fps+),and Standard deviations.Convenience is a hands down win for magneto.No POI changes,maybe a hint of fraction high? But what is there to worry about even if POI changed-chronos are for measuring FPS as accurately and consistently as possible(and convenience is very desirable).Once you have done that,a few more shots with the magneto off will confirm actual shooting condition POI (won't be far off!,esp with a heavy/stiff barrel,and the magnetospeed tightened properly,perhaps after a few shots.) If you don't go for such more objective tests,then JCS post is in agreement,and most,if not all,users seem well pleased.For me that's good news,but so is agreement with an Oehler 35,under reasonable test controls. It just seems a better speed trap,if not mousetrap! Gbal Link to comment Share on other sites More sharing options...
trucraft Posted April 16, 2014 Author Report Share Posted April 16, 2014 Google review of "Oehler 35,magnetospeed,superchrono'..it's from Long range only.com In general,Oehler and magnetospeed were closely agreed esp in mid range speeds (3000fps+),and Standard deviations.Convenience is a hands down win for magneto.No POI changes,maybe a hint of fraction high? But what is there to worry about even if POI changed-chronos are for measuring FPS as accurately and consistently as possible(and convenience is very desirable).Once you have done that,a few more shots with the magneto off will confirm actual shooting condition POI (won't be far off!,esp with a heavy/stiff barrel,and the magnetospeed tightened properly,perhaps after a few shots.) If you don't go for such more objective tests,then JCS post is in agreement,and most,if not all,users seem well pleased.For me that's good news,but so is agreement with an Oehler 35,under reasonable test controls. It just seems a better speed trap,if not mousetrap! Gbal Are you happy load testing with it on and trusting the groups? The actual POI change doesn't bother me it just make me think it could also alter my groups. When I used a Magneto I did like it. I just want to be sure before I spend over £300 on one. Link to comment Share on other sites More sharing options...
6.5Grendel Posted April 16, 2014 Report Share Posted April 16, 2014 Are you happy load testing with it on and trusting the groups? The actual POI change doesn't bother me it just make me think it could also alter my groups. When I used a Magneto I did like it. I just want to be sure before I spend over £300 on one. Maybe I'm doing it wrong but I usually don't get the chrono out until I find a load I'm happy with (group / pressure signs etc) . Then I chrono it so I can get a drop chart then I compare drop chart against actual when in the field or at the longer ranges Andy PS I do like the look and concept of the magneto Link to comment Share on other sites More sharing options...
alijnclarke Posted April 16, 2014 Report Share Posted April 16, 2014 I didn't know that the Magneto changed the POI, i've been thinking of getting one for checking my loads. My local tunnel range has a white thing, that looks like a cheapy type one.. and it's giving me some very odd readings. Link to comment Share on other sites More sharing options...
Laurie Posted April 16, 2014 Report Share Posted April 16, 2014 Whether the Magnetospeed POI / group dispersion pattern changes depends partly on the barrel weight / profile, partly on how well anchored the 'bayo' is on the barrel. The new V3 version is much easier to attach and much better anchored than the V2 which in turn is better than the simple V1. The whole strap system has been redesigned on the V3, and the range / number of adjustment spacers increased. (The control / display unit has been redesigned too over the V1/V2 model, allows two types of battery to be used and a battery/ies change is done through a snap-on cover, no longer needing a Phillips headed screwdriver. The software now has a an easy use 9-mode / strength set-up facility for different bullet sizes / materials, although the default setting has been infallible so far for my V3 useage, unlike the V1 where 'bayo' placement in respect of the bullet path was more critical. A heat resistant, synthetic rubber type pad has also been added to the kit for moderator attachment to protect the securing strap.) Using the V1 on a .308 Win Howa 1500 'Stainless' Varminter last year, I could never get the 'bayo' quite tight enough to avoid some degree of slip during use. This would give 3+2 or 4+1 groups with vertical displacement. This slip seemed to be a function of the V1 securing system, the degree of barrel taper, and the finish that Howa use being 'slippery'. Conversely, I was with Adam Bagnall, many times GB F/TR champion in a test session at Bisley last summer where he put a V2 on and proceeded to shoot into EXACTLY the same piece of the V-Bull at 1,000 yards on a very heavy profile Broughton fluted barrel. Using the new V3 last week on a .308 F/TR rifle with some pretty hard recoiling loads off a front-rest / rear-bag bench setup (that accentuates rifle movement), the 'bayo' never moved at all and the top load produced identical size / shape groups at 100 with the 'bayo' on and off. That was with a somewhat lighter than Adam's barrel profile, a 'heavy Palma', but still pretty fat by sporting rifle standards. The POI rose a little, ~ half-inch with the 'bayo' on. So, I'd still want to do final load refinement / zeroing with it off if possible, but could live without this if needs be, Having used all three models, I'd recommend paying a bit more and getting the latest, just arrived V3. Gary Costello of March Scopes UK (the importer) tells me his first shipment of 40 V3s sold out in 10 days. Yes, they're that good! Link to comment Share on other sites More sharing options...
Laurie Posted April 16, 2014 Report Share Posted April 16, 2014 PS, I'd never willingly go back to using an optical chronograph again - what a PITA! Link to comment Share on other sites More sharing options...
alijnclarke Posted April 16, 2014 Report Share Posted April 16, 2014 Whether the Magnetospeed POI / group dispersion pattern changes depends partly on the barrel weight / profile, partly on how well anchored the 'bayo' is on the barrel. The new V3 version is much easier to attach and much better anchored than the V2 which in turn is better than the simple V1. The whole strap system has been redesigned on the V3, and the range / number of adjustment spacers increased. (The control / display unit has been redesigned too over the V1/V2 model, allows two types of battery to be used and a battery/ies change is done through a snap-on cover, no longer needing a Phillips headed screwdriver. The software now has a an easy use 9-mode / strength set-up facility for different bullet sizes / materials, although the default setting has been infallible so far for my V3 useage, unlike the V1 where 'bayo' placement in respect of the bullet path was more critical. A heat resistant, synthetic rubber type pad has also been added to the kit for moderator attachment to protect the securing strap.) Using the V1 on a .308 Win Howa 1500 'Stainless' Varminter last year, I could never get the 'bayo' quite tight enough to avoid some degree of slip during use. This would give 3+2 or 4+1 groups with vertical displacement. This slip seemed to be a function of the V1 securing system, the degree of barrel taper, and the finish that Howa use being 'slippery'. Conversely, I was with Adam Bagnall, many times GB F/TR champion in a test session at Bisley last summer where he put a V2 on and proceeded to shoot into EXACTLY the same piece of the V-Bull at 1,000 yards on a very heavy profile Broughton fluted barrel. Using the new V3 last week on a .308 F/TR rifle with some pretty hard recoiling loads off a front-rest / rear-bag bench setup (that accentuates rifle movement), the 'bayo' never moved at all and the top load produced identical size / shape groups at 100 with the 'bayo' on and off. That was with a somewhat lighter than Adam's barrel profile, a 'heavy Palma', but still pretty fat by sporting rifle standards. The POI rose a little, ~ half-inch with the 'bayo' on. So, I'd still want to do final load refinement / zeroing with it off if possible, but could live without this if needs be, Having used all three models, I'd recommend paying a bit more and getting the latest, just arrived V3. Gary Costello of March Scopes UK (the importer) tells me his first shipment of 40 V3s sold out in 10 days. Yes, they're that good! Very interesting read thanks, it was the V3 model i was looking at. Another thing to add to my shopping list i think! Link to comment Share on other sites More sharing options...
Barrelsniffer Posted April 16, 2014 Report Share Posted April 16, 2014 I have Oehler 35, superchrono, Mil CED, and a few fold out box type Chrony models..But recently bought a megnetospeed and its by far the easiest to setup and use, as for POI i would only use for finding the velocity and not when shooting at tgts.....works for me and many others. Link to comment Share on other sites More sharing options...
gbal Posted April 16, 2014 Report Share Posted April 16, 2014 Are you happy load testing with it on and trusting the groups? The actual POI change doesn't bother me it just make me think it could also alter my groups. When I used a Magneto I did like it. I just want to be sure before I spend over £300 on one. Essentially yes- what I said is pretty much what Laurie has elaborated.Chronos are to measure bullet velocity:of course group size matters,but that can be assessed by firing under actual usage conditions,without the magnetospeed,but of course adding a moderator if that was not on using the magneto,though the Mark 2/3 allow chronoing with mod on. Almost all the research/testing/user feedback in any case reports almost no POI change,nor effect on group size-no I would not trust things if the group was large (> 1 moa,but then I would not use that loading anyhow!) ...the more likely scenario is that neither POI nor group size would be any larger than normally expected,so not an issue-but I test anyhow,as above-or as 6.5 does-get a good accuracy/grouping load,which is in the velocity ball park,as per book eg,and final check velocity for it with chrono,and draw up drop chart,verified by actual shooting. In any case,except perhaps at very long range,a hundred fps isn't going to have much effect on drift/drop (well under an inch),so max fps isn't the be all and end all for me,consistency is.Alleged POI changes were in the original post,but seem not to be found,not that it matters. Tight check on the chrono fixing especially with a skinny barrel,ideally a mark 3 for secure fixing,and I doubt that there is anything at all to be concerned about,which seems to be pretty well what satisfied expert users are saying. Bear in mind,that other systems are by no means perfect,indeed most seem less consistently accurate in fps measurement,which is to me,far and away the most/only task I want a chrono to perform,and definitely inferior in convenient use. It is a pity that it seems we have to pay for the Mark 3's more secure fitting to minimise slippage etc,though such slippage does not seem serious. Gbal Link to comment Share on other sites More sharing options...
onehole Posted April 16, 2014 Report Share Posted April 16, 2014 Maybe I'm doing it wrong but I usually don't get the chrono out until I find a load I'm happy with (group / pressure signs etc) . Then I chrono it so I can get a drop chart then I compare drop chart against actual when in the field or at the longer ranges Andy PS I do like the look and concept of the magneto Yep ,,,,group,,,pressure,,,,chrono,,,drop chart,,,,field test,,,,adjust a bit,,,,,done,,,,,mmmmm good enough for me,,,,O Link to comment Share on other sites More sharing options...
Dac9976 Posted April 16, 2014 Report Share Posted April 16, 2014 Got my magnetospeed ( v2) last week. Works a treat and my POI did not change at all. Cheers Danny. Link to comment Share on other sites More sharing options...
trucraft Posted April 16, 2014 Author Report Share Posted April 16, 2014 Thanks lads, I appreciate all your input. Barrelsniffer, you don't fancy selling off one of you collection do you? Link to comment Share on other sites More sharing options...
trucraft Posted April 17, 2014 Author Report Share Posted April 17, 2014 I called Gary this morning and bought the last Magneto speed v3 he has. Sorry lads. Very nice guy, could have chatted to him all morning. Found out he lives 5miles down the road. Which could prove quite expensive given the quality of kit he sells. Thanks for the advice all. Link to comment Share on other sites More sharing options...
terryh Posted April 17, 2014 Report Share Posted April 17, 2014 Just been speaking with Mr Costello about other things, he's sold out of the V3's and has folks from the US calling - they are 'out' over there too T Link to comment Share on other sites More sharing options...
Gary C Posted April 17, 2014 Report Share Posted April 17, 2014 Just been speaking with Mr Costello about other things, he's sold out of the V3's and has folks from the US calling - they are 'out' over there too T Hi Terry /All We will have more V3's in a Few weeks, if you are interested I strongly recommend reserving one as we sold 3/4 of our order before they had even landed. Also further to Laurie's very comprehensive review, the V1 & V2 we stock currently both have upgraded straps and clasps and are much better than the earlier models, we can upgrade straps/clasps, just contact us and we can supply they are not expensive. Also on the subject of POI shift, it can happen but only on some barrels and configurations, this is NOT harmonics, this is the muzzle blast that hits the Bayo and causes a very slight lift to the bullet, this is repeatable every time and will not affect your group size, I use mine at long range all the time and normally dial down 1/2 moa on one rifle and zero on another. Trucraft, was hoping we had a spare driver to get you a same day delivery sadly its chaos before the holiday so the V3 has now left us via Courier, you should get the notification very shortly, thank you for your kind comments also. Happy Easter to all ! Gary Link to comment Share on other sites More sharing options...
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