SHOOTING A 17 HMR RIMFIRE BULLET HEAD THROUGH A 177 AIR RIFLE

[drs2100]

i've done this sucessfully by using heat shrink tubing around the bullet and trimming it at the taper and just behind the end of the bullet to make a skirt...works good, bullet drop is significant but it hits on target and no key hole

[arrived63]

I keep asking myself why? why? why?

[1212goose]

@arrived63 for fellons thats y... or so i suppose... hahaha

[Teamwolf7777]

Try a 17 HMR in lead if they have any

[supressorgrid]

Nice of the Vatican to let use use the Shoud of Turin to display your handy work on.

[escapehaven]

nice tobacco stains on your finger!

[camk31]

Good test. A friend of mine tried this with some .17 cal projectiles and when he inserted one in the barrel it slid right through and fell out on the ground. For some reason copper jacketed bullets are not a good fit for air rifles. Even the PBA stuff from Gamo doesn't seem to perform as well as good old fashioned lead in terms of accuracy.

[labrat7357]

When an under sized bullet is in the barrel, gas passes the projectile and Bernoullies principal comes into play. Simple physics The bullet is a constriction in the flow of gas so the velocity increases but the pressure decreases behind the projectile. Normal ballistics are out the door when there is not an adequet gas seal.

[duane2072]

So you shot this 17 HMR bullet through a pellet gun. Pretty cool, but not effective. The pellet has a skirt that expands to capture all air pressure as the 17 HMR does not. So then you ran both at the same time, now your trying to run 27 gr which the pellet gun is not made for. Also, the lead allows for lubrication that the brass doesnt. Maybe instead use some sort of soft wadding (toilet paper) with oil that will catch the air pressure and keep barell sealed until bullet exits. :)

[peteydoglimited]

i own several 22 lr. 22 wmr , and one 17 hmr. love the 17 it is a great one to shoot. with that said, have you seen the spitzer type and ballistic tips now offered for the 22 wmr ? It is a good set up, heavier bullet , slightly slower speed , but greater downrange energy. not sure where you are , check it out and let me know what you think, until then safe shooting and practice makes perfect.

[Nate11692]

It's not a "Bullet Head" It's a bullet.

[gunvidder]

@Nate11692 Yes I know, phrased as a head simply to state not the complete cartridge is being used.

[hydroxy223]

@Nate11692

technically its a projectile

[Nate11692]

@hydroxy223 No, technically, it is without further discussion, a bullet. The shell casing is what is left behind in the gun. The bullet is fired and sent down range.

[1gamoguy]

screw the other twit being negative with the comments, i think if they were to make a .17 HMR platform air rifle it would sell very well! in all honesty i dont understand why they have not done it yet

[gunvidder]

@1gamoguy All sorts of cal' air rifles available but bigger size not smaller, bit of a surprise no 170 air rifle cal' when you do have a think about it. Would it be good for 10yd target shooting with either rifle or pistol ? 177 is the favoured target choice cal' & 177 pellets are cheaper than 22 so the 170 could be a good target choice just like some prefer 25 for hunting.

[1gamoguy]

@gunvidder ohh i know, the whole reason i got back into air guns after seeing how far they have come over the last 10 years, everything from 117, .20 .22 .25 .45 .50 cal big bores and even taking water buffalo with the .50 cal big bores its insane, if they did make a .17 cal air rifle off of the HMR platform that would be usefull for more than just 10 yards lol expecially on a powerplant of a bigbore air rifle.

[1gamoguy]

@gunvidder whole point of the HMR is to shoot a small grain light weight projectile at an extremely high velocity, usefull for game up to the size of coyote, when it comes to ballistics, energy and down range performance there is no other rimfire that can come close to a 17 HMR

[gunvidder]

@1gamoguy It's amazing the difference 3gn can make, my 452 HMR likes 17g Remmingtons. I'm now trying a few different 20g rounds.

[1gamoguy]

@gunvidder yes it is, and some people dont understand that, even ballistic tip projectiles, you have 2 of the same bullets, but one has a ballistic tip, will perform dramatically different, i think this is one of the many things i love about firearms lol

[gunvidder]

@1gamoguy I'm trying various 17g & 20g's in hollow point & B/T plus a 20g solid. Expensive & a nightmare to find the best for any particular rifle.

[1gamoguy]

@gunvidder this is very VERY true, thats why i usually shop around to see if they are selling single 50rd boxes instead of the bulk, that way iam spednign a few bucks instead of 20 on a new round and get to test them out, with all that said i would say i have well over 1k rounds of 22LR lol

[gunvidder]

@1gamoguy It's all good fun trying different ammo, got a few 22lr myself, even the bad ones are good news because we can whinge & moan about them. Down my local range all the good stuff is mentioned but all the bad types are well known

[1gamoguy]

@gunvidder yea its the 3-10 ratio if someone has a bad experience with something they will tell 10 people, but if something is great they only tell 3 people, maybe its just our human nature where we like to talk about the negative more than the positive lol

[terminegger]

What the hell is the point?

They're never going to perform the same way as they will when fired out of a proper gun chambered for that caliber - you've just created the world's heaviest, slowest and most expensive air rifle pellet.

What next?

Firing 12 gauge slugs by blowing them out of your ASS?

Don't be a mug all your life.

[gunvidder]

@terminegger There's no point at all in a stupid experiments except for the I've tried it quote. Nice to be serious but what the hell, not all the time & you've given me an idea, 12g slugs & cans of beans on my shopping list.

[1gamoguy]

@terminegger well contrary to you comment, but if they did come out with a air rifle that chambered the 17 HMR bullet, it would not be the most expensive.... have you not heard of big bore air rifles, .38 .45 and .50 caliber? hate to break it to you but those are ALOT more expensive than a .17 cal pellet if they were to make one........

[158057]

try a lead .22 round in a .22 pelet gun.

[gunvidder]

@158057 Allready on my to do list.

[mjw789234]

@158057 ive done it before they work pretty well just go alot slower but i shot a bird with one

[gunvidder]

@mjw789234 Interesting, definately something to try, I'm getting some bullets pulled at the moment so shoudn't be too long before I try it.

[ke6ziu]

You could try paper patching the bullet to make it fit into the barrel of the .177...

[gunvidder]

@ke6ziu It needs to be sturdy to withstand traveling up the barrel.

[hilers72652]

@gunvidder just wrap a bit of paper around it, it'll hold up enough through the barrel. it's been used in black powder rifles, who not a compressed air rifle

[gunvidder]

@hilers72652 I'm toying with shrink wrap at the moment.

[BigBananaMan]

@gunvidder Shrink wrap will likely wear off in your barrel like the commercial plastic projectiles. Your best bet is to make a paper patch projectile with cigarette paper (google the technique) or like they did to protect barrels from solid steel armor piercing rounds and cover it with teflon. Teflon is pretty low friction and can be purchased cheaply in hardware stores but I agree with ke6ziu and using paper patch bullets.

[STRYKER7191]

that'll ruin your rifling...

[gunvidder]

@STRYKER7191 A few shots won't hurt, doesn't do much harm, copper is a soft metal.

[762Fanatic]

@STRYKER7191 No, it won't.

[jitzero]

a round is the case/cartridge, primer, powder and bullet all together

[gunvidder]

@jitzero Not trying to be techy, just waffling as I go along.

[hollycow123445]

who cares?

[jonutarr]

wtf is a bullet head? just looks like a bullet to me

[gunvidder]

@jonutarr I'm assumeing a bullet head is a bullet without the case, primer or powder.

[teachmetoswim]

@gunvidder bullet is a bullet, cartridge is a cartridge, bullet head is not the correct way to say it

[gunvidder]

@teachmetoswim I stand corrected but I was trying to indicate that just the bullet was used not the whole cartridge.

To some the word bullet means all of it, case, powder, primer, the lot.

[angryfishmonger]

What if you flare the bottom of the .17 to get a better seat in the rifling? I imagine they would be several ways to do this. What was the velocity of the round fired? I imagine they would work best above 1200 fps. Great video

[ryanperry90]

good video but what about using 223 or 5x56mm for 22cal PELLETS i think it will work or using a 223 bullet mold you can size them to what ever od you like i do not know if lee make a 17cal bullet mold and you can use your old PELLETS for the lead

[gunvidder]

@ryanperry90 I'm curious about the HMR bullets because they are smaller than the 177 pellet.

I'll have a think about the .22, I have an air rifle I could use.

[hmpeter]

@gunvidder

There are some .177 air rifle pellets which are basically saboted steel slugs (mabe by Prometheus, England I think). Maybe the .17HMR bullet will fit in one of those plastic sabots?

[gunvidder]

@hmpeter I have tried another experiment but not set it up to film yet, similar idea to what you suggest.

[duane2072]

@ryanperry90 Try as you might, but it is a ABSOLUTE MUST to have the skirt on the bullet to catch the air pressure or it wont work and the stability of the bullet in flight will be all off. Your velocity will be to low otherwise, it will not do any significant damage. Like I said, try it, you will see exactly what I am talking about!

[Forbidenangel0]

tyhis mans a hard working man look at those calises

[gunvidder]

@Forbidenangel0 Look up fireballs drop forgeing.

Not me but the sort of thing I do at work.

[peterkidd27]

you should try a .22 bullet though a .22 airrifle

[gunvidder]

@peterkidd27 My 22 isn't working very well at the moment.

I have a few lr heads spare I can try with.

[TamrynRimfire]

Great Experiment Darrall all very interesting 5*

[gunvidder]

@TamrynRimfire I might try again soon trying something slightly different

[Ghostmaker1970]

You must have too much time on your hands Darrel lol only kidding fella I was excited to see the result ! Disapoiting though was it not.

ATB Ghost Maker

[gunvidder]

@Ghostmaker1970 I know what you mean. Hadn't a clue what would happen, the first shot told me it would end up naff but hopeing a pellet behind it would show something interesting ???

I'm haveing a think & may try again.

[Spanky00Cheeks]

cool

[gunvidder]

@Spanky00Cheeks Thanks.