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You need a solid table to get a true reading

8 months late to the party.... Will that putty slump if it's warm?

Could you use the lead that roofers use in sheets? They also make a non leaded alternative.

What ever happened to this rifle?

Wrost video ever

Now that you have your rifle in an heavy vice, you want to do the same for your target. Build a solid steal frame with a tiny hole in it no more than a 5x5cm square. You want 2 frames that you can bolt together to pinch your target paper because you don’t want to just tape your target.

A stock would wrap around the action and keep it square. It seems like the barrel could potentially move from right to left. Nothing holding it from moving but the tightness of the screw. I love the concept though. I want to make a robot that shoots. .... Is is that a plastic folding table? That's going to be shaking all over the place.

Why wastea gas pipe flange and a milling vice !!😂😂 thort you was a chipy pal wood bench be better

👍👍

Looks like your target is moving when it is getting impacted and not your base. Not sure how you could tell one way or the other when looking through the scope.

Top stuff Mr Tilly. It's called the law of diminishing returns: Great gun, pellets not good enough. Buy better pellets, gun not good enough. Buy better gun, pellets not good enough. Buy better pellets, gun not good enough, AND repeat till you have gone from a £500 PCP with £8 for 500 pellets to a £3k PCP with £15 for 500 pellets. I would like to thank you for showing how incredibly hard it is to hit a tiny target at an incredibly short distance.

What is that device hold the piece of string on your rifle and how is it mounted?

look up a video on YT of a gun firing in slow motion.. once you see that you'll give up on this. Harmonics aside, the variables stack against you, no 2 pellets are alike, fowling, cheek weld/parallax, valve speed, pressure consistency, velocity consistency ... Once you figure all that out and find the magic combination of the above... the next day the temperature of the day and barometric pressure will be different, and you start over. Did you know the suns angle in the sky reflects a different target image in your scope (causing poi shift) depending on what time of day it is? good luck.😀

would be good to set up a micrometer on the end of the barrel with a camera looking at it to see if you get any flex/whip etc?

Your not considering the pellets variables. C of G , Axis Tilt, deformation. Still good video though.

Forgive me for my ignorance, but why do you use the glove? Nice vid, BTW, thank you! Marko

The only thing insane is your inappropriate use of this word .....

Now this guy is serious. Love it

Another great mind twisting video. The one thing that without doing a lot of additional work to sort/grade pellets don't think you'd get much tighter groups than some of those you got. It would be interesting to see groups at range.

I love watching your videos but they are a little bit long and you could speed them up a bit and I’d watch every one of them sorry bud impatience and I’m 70 years old. I haven’t got a lot of time on this planet so every minute counts to me.

Hello again. What about a real back to basics experiment ? No feathers, levelling devices, no high mag scopes, or limit mag to 9x and below, no shooting glove, pick a tin of pellets but no wsahing or sorting or weighing and see how different the groups come out ? I would try it , but thats how I already shoot....Should be relatively esay to set up(I know NO video is esay ) All the best Keith

2010 FX Exacts, you've got pellets from 14 years ago?

Great stuff. Have thought about doing the exact same myself. I have attempted something similar by strapping my rifle to my rifle bench rest, though it certainly won't be as sturdy as the set up you have put together in this footage.

Mmm, I bet you that the high end manufacturers are using something very (maybe not quite as" home made"!) similar to test their rifles... can't fault your dedication to the sport mate!👍

Great stuff! Like a few have mentioned, I’d replace the wood here with properly machined steel and perhaps “T” shaped rather than square so it indexes consistency on the top of the vice jaws. You’re going to get to a point quite quickly where too many variables like pellet size and weight or regulator variation will be the cause of variance, but until then ….. “Lay on, Macduff, and damn'd be him that first cries, 'Hold, enough!'

Looking forward to the rest of this one, one comment would be is it really testing the accuracy of barrels, or the consistency in manufacture of pellets?? The reason I say this is for a truly scientific test only one pellet should be used, think about it, already you're saying this barrel doesn't like these etc. In a true barrel test the only variable should be the barrel, everything else should remain the same i.e. the pellet, otherwise it's back to a pellet/barrel combination test? give it some thought, all those scientists out there will agree with me. Then for pellets you pick one barrel and the only variable then becomes the pellets, what you are doing is mixing up two tests. So for true readings in A you would repeat with different pellets and B different barrels, then collate all the evidence and find a median.

Well done Tommy, an absolutely fascinating video and so much more to learn. Can’t wait for the next instalment 👍

laser pointer attached to the barrel so you can see if the laser dot moves when being fired? OK 18 minutes later you mention this... :)

Still on a wobbly base, the one at our range is an angle iron frame and clamping system cemented into a concrete base, absolutely essential for group testing various ammunition in a particular barrel, and beyond 25 yards, for accurate adjustment of a barrel tuner.

Another great video Tommy. This would just prove what a rubbish shot I am if I were to try something similar. Look forward to the follow up.

👌 brilliant totally interesting 👌👌👌👌👌👌

Thank you for your work, and if you do tests with complete chargers, checking the difference with the manual one by one, greetings.

Very Interesting GREAT test platform 😎

Great start Professor,eeeeek!👍👍👍👍👍👍👍👍👍👍👍👍👍😎😎😎😎😎😎😎😎

Good vid and nice to see your hand has improved lumping that about👍

Great video. Might be usefull to cement a flat granite slab to that concrete so you can have a level platform AND shift the point of aim without varying the balance of the rig.

Fascinating! This reminds me of when my pistol club, back in the good old days, got a Ransom rest. The results from that got several shooters suddenly working on their technique rather than blaming the gun or the ammo! One observation I would make about you rig, speaking as a retired machinist, is that I would be using much thicker washers to clamp that vice down onto the disk. I always used washers around 4mm thick from memory, thin ones let the vice creep around. I'm really looking forward to seeing your future videos.

since covid the exacts have been shite

Really really interesting video tilly. Now you've got me thinking and my question is, if the rifle in vice shoots straight every time with the same regulated air flow,so that means the slightest damage or weight difference to pellets even if pellet looks okay will throw it off however slightly because of aerodynamics,this means that there is no way to hit perfect group,unless you have perfect pellets.so now to my question. is the only way for me to improve my or anybodys shooting is weighing pellets witch i don't do and checking for damage witch I do. I think the answer is yes. Plus I would love you try same experiment with flathead pellets because there must be a reason why they use them in Olympics. Thanks for wonderful content and for racking my brains. Rob😊

Its not until you see something like this you realise just how much those tiny little differences can make.very informative thank you

You have made a solid vice with a lot of weight then put it on a jelly..... Your rig will change the harmonics of the barrel by a significant degree too.

A very interesting watch. As you make the base more stable it will likely reduce its portability. You could try a metal hamster to clamp onto rather than the wooden on, anything with threads for the feet though will have some play in it, unless they are tightened with a clamping nut. You are certainly well into expending huge amounts of effort to gain much smaller increases in accuracy - as long as you enjoy it!

Great video as usual 👍. Maybe a few points to consider. If you are purely concerned with grouping then you need to eliminate variables. This includes the scope (parallax, variations in how you present to the scope, cant etc). So no scope & after initial set up for zero you should not need a scope. The vice itself, a self centering, presicion milling vice would be good, one with as few adjustment options as possible, to eliminate movement due to lose bolts etc. The base needs to be rock solid, absolutly stable, any movement just renders the vice/mount useless for precision shooting. Heavy steel table or concrete pillar. Establish an initial zero with a vice mounted action at test range in middle of target card by moving vice/mount, not the scope and that is your zero, no adjustment made to the table/vice from this point. Mount the rifle actions to be tested & shoot. It doesn't matter if the zero is off from the initial zero, it's the grouping you are concerned with. Unless the pellets or rifle are really bad the POI should be on the target card. The point is you should never be adjusting the vice/table or be using a scope. Laser should not be needed (those variables). As long as the shots are on the card you are good. You need to remove as many movement variables as possible. Clamp the gun action in & that is it, as long as you zeroed the 1st rifle to the centre of the card you should not have to mess around adjusting scope zeros etc., the POI should be on the card if gun zeroed at test range with scope previously. Replace target cards rather than moving the set up to move POI, you should only be putting action in the vice, that is it, no adjusting the table to move POI etc Just some thoughts 👍

Excellent video. You never cease to amaze me.Totally agree about the club and meeting folks, its v easy to get too much into a comfort zone, Dont ask me how I know. Excuse, its harderr to find an air rifle club over here in the Hick Zone. Take care and all the best Keith

Does the inconsistency of the shooter counteract some of the potential inconsistency of pellet / rifle? We are the weakest link as you say, but are we also the factor that can adjust and minimise or of course aggrevate the changes? Is the hamster mounting system the weakest point at the moment? Moving the jig laterally doesn't always move the POI move laterally as well?

Get an open top oil drum filled with sand and lay the base plate on the bed of sand. Same principle as for vibration proof benches in laboratories.

great videos

Here’s a crazy idea,what about a remote control target micro controller so you’re moving the target for zeroing instead of the rifle?

Strewth, your dedication and determination to gain as much info as possible on accuracy is outstanding and this one makes for another brilliant video 🙏 Talking pellets, has anyone else found Air Arms Diabolo Fields to be not as well finished/ QC’d as they were? Or am I just unfortunate….

Great video as usual, have you considered “ clean, lube, weighing and sizing “ ?