First shoulder firing of my DIY 1.5" punt gun

[-]

AdventurousBaby6514@reddit

you are going to destroy your shoulder that’s 800 pounds of recoil

[-]

Bigbore_729@reddit (OP)

No, this load was like 200 pounds. I've shot it up to 300 pounds of recoil

[-]

AdventurousBaby6514@reddit

Still going to destroy your shoulder if you don’t p that thing in the sliding thing you showed in part of the video

[-]

Firm-Item-4691@reddit

What type of steel is it made from?I'm guessing forty one thirty

[-]

Bigbore_729@reddit (OP)

Barrel is 4130. Everything else is 4140

[-]

I got mine from online metals. You want cold drawn seamless. And it needs to be stress relieved. Then you want to calculate how much pressure it can withstand before you use it. Look into Barlow's Formula and hoop stress.

[-]

mask0311@reddit

It's everything I had hoped for and more!

[-]

nan0brain@reddit

Joy wise, 4-bore or this one?

[-]

cathode-raygun@reddit

Truly impressive.

[-]

Bigbore_729@reddit (OP)

After 2 years of starting this build, I finally shouldered it! This was a very mild load, 350 grains of 1F black powder and 5000 grains of shot. It's definitely got some recoil, but I can handle more. My brother shot the same load as me, but we managed to break my bog pod and he dropped it 😬

I look forward to doing some serious testing with this bad boy

[-]

Altruistic_Major_553@reddit

How much did the project cost? Seeing it in action I now have a strong urge to try it myself 😂

[-]

Bigbore_729@reddit (OP)

Man, I didn't keep tabs as good as I should have. I also had some setbacks and redesigns that made me spend more money. High side $6500. That's absolutely everything, screw ups included.

[-]

Altruistic_Major_553@reddit

Good to know! Looks like I’ll be starting with something slightly less ambitious for a first attempt, maybe one of those build your own Kentucky Rifle kits for $350 instead of

[-]

almighty_ruler@reddit

I'm going to pick up some pvc and a bag of potatoes I guess

[-]

1Pwnage@reddit

DIY and Punt Gun is not something I would necessarily want to hear in the same sentence

[-]

im-feeling-lucky@reddit

well clearly it worked

[-]

Memento101Mori@reddit

I read that as grams, not grains.

3/4lb powder 10+ lb shot

Is not the 1/20 lb powder and 5/7 lb of shot that you did use.

[-]

deadface008@reddit

"my brother shot the same load as me", 5000 grains will get your bloodline wherever it wants to go

[-]

NerdWhoLikesTrees@reddit

definitely got some recoil

Lmao

Awesome project all jokes aside!

[-]

BattleHall@reddit

Nice project. If you angle that cheek riser down towards the palm swell, it'll be more like the traditional "heavy recoil" stocks they put on African big bore rifles. Since the gun recoils backwards and upwards, you want the stock to drop away forward of where your cheek makes contact so it doesn't smack you in the face too bad.

[-]

Sianmink@reddit

Yea my very first thought
"That photography tripod is about 50 pounds too light to survive this."

[-]

Sit_back_and_panic@reddit

Damn lol would’ve thought your brother might think to pull up his pants and brace himself for that shot

[-]

Lompehovelen@reddit

Incredible build, thats great.

Also what model is that Kubota?

[-]

KccOStL33@reddit

Dude in the green looked like he thought he was about to fire a bb gun.. Lol

[-]

ballman666@reddit

Sir, that is freakin awesome!

[-]

0reasons@reddit

I have a bad shoulder, I couldn't do it 😂

[-]

sparkysparkyboom@reddit

Do you know if this takes Glock mags?

[-]

TacTurtle@reddit

This could fire Glock slides

[-]

olenamerikkalainen@reddit

I’m sure they fit down the barrel….

[-]

iNapkin66@reddit

Lol, I think you need a beefier/heavier gun mount.

Running some guesses to the numbers gets this into similar energy levels as 50bmg.

[-]

Bigbore_729@reddit (OP)

The aluminum casting on the leg cracking in half was not on my bingo card for the day lol I sent the manufacturer an email asking if they sell replacement components. Hopefully, they do. I will probably end up making my own tripod out of steel tubing.

[-]

TacTurtle@reddit

A bipod with stout legs would allow it to rock back, plus it would double as stand while loading....

[-]

iNapkin66@reddit

I mean, you've spent 6500 and however many hours making the gun, I'm pretty confident you can make a more suitable tripod than you can buy.

Keep posting videos and pictures please, I'm living vicariously through you on this one.

[-]

BonjinTheMark@reddit

Looks like a clavicle/shoulder breaker

[-]

MrSpudzz@reddit

Roughly how expensive is it per shot?? My 9MM deal finder mindset has to know!

[-]

Bigbore_729@reddit (OP)

Uhhh not including the wadding roughly $4.18 a shot when using shooting #4 shot with a 450 grain charge

[-]

anothercarguy@reddit

Is the wedding old T-shirt?

[-]

Bigbore_729@reddit (OP)

1/2" felt and cereal boxes

[-]

anothercarguy@reddit

Needs a sling attachment. You should tag Kentucky ballistics

[-]

BulletSwaging@reddit

Fuck and yes come to mind. Please add a ballistics gel test. Would love to see what it could do. When will you take the next step and cast a conical bullet? What’s your load you use?

[-]

Bigbore_729@reddit (OP)

I cast some 1.5" round ball that I will be testing whenever I get a place with a big hillside. I'll definitely break out the ballistic gel for that. I might experiment with some foster style slugs down the line.

[-]

BulletSwaging@reddit

I have a feeling you will find “your” limit before the limitations of the firearm. This is awesome, keep posting.

[-]

mmmhmmhim@reddit

bet the limit will be under 5.

under 5 shots a day no matter what the load is

[-]

SmrtassUsername@reddit

Make a trailer mount and give it a gun shield and you'll have yourself a homemade Pak-36 or 2 pounder anti-tank gun. This is ridiculous in a good way. I like it!

[-]

thegrumpymechanic@reddit

Been fun watching this project progress.

Congratulations on finally shooting it.

[-]

MArkansas-254@reddit

Looks cool! You should reach out to Kentucky Ballistics on YT. I bet he’d be interested in giving it a go!

[-]

ottermupps@reddit

So, this is a muzzleloader with an inline 209 primer? CVA Wolf style?

I'm really happy to see this project succeed. I've been following along since your early Replicator project, and it's super impressive.

Is this thing too heavy to shoot freehand/no tripod?

[-]

Bigbore_729@reddit (OP)

Yep! More CVA buckhorn style.

And thanks, this was a lot of love and hard work.

And yes, far too heavy to shoot freehand. The gun itself weighs 50 pounds and a lot of the weight is in the front. I don't know anyone big and strong enough to just shoulder it without support

[-]

ottermupps@reddit

Ah, that would do it. You've probably gotten this one a lot, but have you considered getting Kentucky Ballistics to shoot it?

[-]

itsbildo@reddit

Just as the founding fathers intended

Own a musket for home defense, since that's what the founding fathers intended. Four ruffians break into my house. "What the devil?" As I grab my powdered wig and Kentucky rifle. Blow a golf ball sized hole through the first man, he's dead on the spot. Draw my pistol on the second man, miss him entirely because it's smoothbore and nails the neighbors dog. I have to resort to the cannon mounted at the top of the stairs loaded with grape shot, "Tally ho lads" the grape shot shreds two men in the blast, the sound and extra shrapnel set off car alarms. Fix bayonet and charge the last terrified rapscallion.He Bleeds out waiting on the police to arrive since triangular bayonet wounds are impossible to stitch up, Just as the founding fathers intended

[-]

Bigbore_729@reddit (OP)

Can't go wrong with a classic

[-]

Apart_Beautiful_4846@reddit

Man, I love everything about what you did here….save 1 thing:

If I’d worked so effing hard on this build, I would have instructed my friends (kiddos?) on how to properly brace themselves against that recoil. Maybe I’m just a jaded old man, but watching the last 2 shooters operate that amazing weapon made me want to hit my balls will a hammer.

[-]

Bigbore_729@reddit (OP)

Thanks! That's my brother. I told him right before he shot how to lean into it and where to put the pad. He didn't listen to what I told him, and I was ready to see the consequences of his actions lol. If it was any stouter of a load, I would have definitely stepped in and corrected him just for his safety. The ground was super soft from rain, so no damage occurred to the gun, just his ego. Which is why I was laughing so damn hard in the video.

[-]

Im-not-a-furry-trust@reddit

Aka how to get a gun kiss after 1 round

[-]

wildraft1@reddit

Dude in the green shirt had it comming...

[-]

Bigbore_729@reddit (OP)

That's my brother 🤣 I literally told him to lean in it right before he shot. He didn't listen.

[-]

BootlegEngineer@reddit

That slow mo had me cackling.

[-]

Bigbore_729@reddit (OP)

He's a goofy fucker, but I love him for it

[-]

BootlegEngineer@reddit

Sick build btw. Take care of that shoulder lol

[-]

Quttlefish@reddit

This thing is awesome.

I like how you all let green shirt just stand straight up on his back leg like that was ever going to work out for him lol.

[-]

Bigbore_729@reddit (OP)

That's what's called "brotherly love". I told him to lean into it and where to hold the pad, but he clearly didn't listen 🤣

[-]

Quttlefish@reddit

Next time get him a belt hahaha he almost lost his britches

[-]

Bigbore_729@reddit (OP)

Dude, he kills me with that! I'm always telling him to pull his damn pants up.

[-]

Adventurous_Blood469@reddit

She be kickin.

[-]

DirtyRoller@reddit

Can't tell if you're wearing plugs or not, but the lack of ear muffs is certainly a choice.

[-]

Bigbore_729@reddit (OP)

So, I will admit when I shot it the first time, I was so nervous I forgot to take them out of my pocket. When my brother shot, I had foam ones in. However, it wasn't terribly loud at the ear, given that the muzzle is like 5' away from your head. But I'm definitely not going to forget my ear pro next time I shoot it 😅

[-]

Plenty-Ad-777@reddit

Other than "we can do it!"... why?

[-]

Bigbore_729@reddit (OP)

Because I wanted to. That's literally the only reason this exists.

[-]

Plenty-Ad-777@reddit

Cool. Fair enough.

Just a thought; when recalculate cost of the system... add "lifetime of shoulder therapy" as a bullet point.

[-]

dontusemybeta@reddit

Are you sure you aren't dead

[-]

all4tez@reddit

Haha oww!