[ClemBert]

I was asked by several fellas if I ever got around to firing that Walker I converted to use the .45 BPM cartridge. Yes, I did awhile back. I took some video footage firing various configuration of the .45 BPM. I put together a short video for your viewing pleasure. Enjoy!

Test Firing the .45 BPM in a Converted 1847 Walker Dragoon Revolver (http://www.youtube.com/watch?v=GCrnpH64Qz8)

[makos_goods]

Very cool ClemBert.

I particularly like your loading lever retention feature during you hand held tests.

Well done and some very interesting shock forms on the flame patterns.

Regards,
Mako

[Berkley]

Outstanding! Made my day.:D

[gifford]

That was a great video. Thanks for posting.

[black_powder_Rob]

Bravo Bravo Bravo, I loved it from the cool action sequences to the awsome music score. Very well done Clembert. I have been keeping up with your other post on TFL and here and have enjoyed the read. Glad you got to finally enjoy shooting her by hand. Great Job.:D

[Foto Joe]

The flame front is VERY interesting. May we assume you have achieved Mach 1+? Are you going to stay with the EPP's or are you considering loading a heavier bullet? For what purpose I'm not sure.

It kinda makes my Dragoon feel inadequate, I probably should have put the poor thing up on a shelf out of sight before I hit play.

Very cool, now what are ya gonna do to keep from being bored?

[ClemBert]

The flame front is VERY interesting. May we assume you have achieved Mach 1+? Are you going to stay with the EPP's or are you considering loading a heavier bullet? For what purpose I'm not sure.

It kinda makes my Dragoon feel inadequate, I probably should have put the poor thing up on a shelf out of sight before I hit play.

Very cool, now what are ya gonna do to keep from being bored?

Hey Joe,

I wish I had a chrony and a high speed video camera. I'd be able to get y'all more useful info if I did.

The original idea behind the project was to be able to convert a Walker to shoot cartridges without having to sacrifice on powder charges. Since the Walker in cap-n-ball mode can hold 60 grains of powder I thought it somewhat of a let down to cartridge convert then be stuck with 40 grains in a 45 Colt cartridge. So the .45 BPM was meant to provide the mechanism for a cartridge version of a 60 grain round ball cap-n-ball load. As you know, that 150 grain EPP-UG Biglube is the perfect bullet version of a roundball. Actually better since it has a Biglube groove. That 150 grain bullet on top of 60 grains of FFFg meets the objective of coming up with a comparable load to cap-n-ball mode.

I'm not done toying with it just yet. The test platform apparatus and the video camera are meant to assist me in tweaking the .45 BPM. I want to play with several more bullet/powder configurations as well as various powder compressions and crimp amounts.

I'm not sure what the story is with the flame pictures. It turns out that capturing flame is few and far between. It is rather difficult to capture. The 60 frames per second of that video camera leaves a lot to be desired. There isn't a large enough sampling to come to any conclusion about some of the odd flame pics. It is rather odd that I have yet to capture a flame that isn't trending downward. Just bad luck...I dunno.

If anyone wants to send me a high speed camera and a chrony I promise I'll put it to good use. ;)

[kbbailey]

You know what....? That was really good.
Clembert, you shouldn't be doing that for free.

[Pulp]

I read somewhere that the newer cameras actually record an upper frame, then a lower frame, then the software puts them together. I don't doubt it, as my JVC Everio often has what looks like a double exposure when I look at action shots frame by frame.

This may sound dumb, but try filming with a 30fps camera. I've gotten some good flame shots with my little HP pocket digital at 30fps.

Anyway, that's a very well done video. I had toyed with the idea of boring out my R&D cylinder to accept .460 cartridges a couple of years ago, but I didn't think the Walker frame could handle the extra recoil. Looks like I was wrong. Time to call a gunsmith.

[Voodoochile]

That's pretty cool Clem, I wish I had your amount of time.

[Foto Joe]

If you were a little closer, I'd send you my Chrony to play with, NOT!! I've blown the sky shields off of the thing with a Dragoon and 45gr of powder. The BPM would probably knock it off the tri-pod on the first shot.:what: If anyone does loan you a Chrony, just make sure that you don't have to leave any type of deposit.

It would be VERY cool to know how fast that little 150gr RNFP is going though. I have never chronographed one in 45 Colt with 40gr of powder, but I'm betting that even a 40gr and a 12" barrel it would be over 1,125 fps. So that bullet in front of 60gr even with the shorter 9" barrel has got to be haulin' the mail so to speak.

I'm guessing that what you might be seeing in the flame front is an effect of a super-sonic shock wave. Why is it always low? No good answer for that one I'm afraid, my experience with physics is based on gravity and learning how not to fall down most of my life. What I might suggest though is a time exposure. Although the image would be blended over the period of the exposure, you could determine whether or not it is only appearing below the midline of the bore.

As regards the EPP's, I see your point. There is NO reason to try to push a 235-255gr bullet out of the gun. You would NOT want to embarrass any Howdah owners now would you?

[kwhi43@kc.rr.com]

This is at 30 fps with my little 50.00 RCA Small Wonder Video Camera.

http://i119.photobucket.com/albums/o127/prizzel/PauletteLightning.gif

[scrat]

excellent job clembert excellent

[andrewstorm]

45 BPM will undoubtedly go down in firearms history,you need to get your own brass with the 45 bpm head stamp,and youll have an instant collectors item,the krist cylinder is strong as you now proofed it,and accurate,great video,get a chrony and post your results ,your probably pushing 1400 fps ?:eek:

[ClemBert]

This is at 30 fps with my little 50.00 RCA Small Wonder Video Camera.

Well, I guess that proves you get what you paid for. My girlfriend gave me this Flipshare video recorder that she got from some convention she was attending where they were giving them away for free. :cuss: I'm going to demand a refund!

45 BPM will undoubtedly go down in firearms history,you need to get your own brass with the 45 bpm head stamp,and youll have an instant collectors item,the krist cylinder is strong as you now proofed it,and accurate,great video,get a chrony and post your results ,your probably pushing 1400 fps ?

Next time you are in Florida I need you to chrony it for me. :uhoh:

[bubba15301]

Clembert have you tried triple 7 yet

[ClemBert]

Clembert have you tried triple 7 yet

No plans for 777. I've got a can of 3F 777 but 2F is used for cartridge loading. 777 is just too finicky about compression. Besides, 60 grains of FFFg Goex is plenty for a handgun. If you try to take the Black Powder out of .45 BPM you end up potentially back at a 460 S&W Magnum. Just FFg and FFFg black powder...

[ClemBert]

I'm not sure what the story is with the flame pictures. It turns out that capturing flame is few and far between. It is rather difficult to capture. The 60 frames per second of that video camera leaves a lot to be desired.

Okay, I lied...well, I'm just confused actually. The video camera is capturing at 30 fps. Seems that Cisco decided to come out with a video camera at 30 fps then later one at 60 fps but continued to use the same model name on the 60 as they did on the 30. :cuss:

It's not that you can't capture flame rather its that you can't capture the entire flame sequence nor can you capture the flame each and everytime. It just happens too fast for this freebee camera. How about THR chipping in for a high speed video camera and chrony and letting poor ClemBert borrow them for awhile? :rolleyes:

[Foto Joe]

Good luck with that, let us know how that works out. You might have better luck with the MythBusters, they seem to have some pretty serious high speed cameras.

[alienbogey]

Me want.

[Oyeboten]

Clem Bert,


Get a Chronograph for Pete's sake!

Lol...

Pro-Chrono-something or other, is usually like $115.00 out of Midway...and it a very good device and easy to use.


That's what I did, and, I would not be without it!

Sorry I do not remember the exact model of mine, but, it is out in the Car Trunk at the moment, where it normally resides if not set up at the Range!


If you are going to be testing Loads, Bullet weights and kinds, all of it, in every way, a Chronograph is just so important to have so you can tell what you are getting for FPS.

[Foto Joe]

If you are going to be testing Loads, Bullet weights and kinds, all of it, in every way, a Chronograph is just so important to have so you can tell what you are getting for FPS.

Besides, the suspense is killing us!

[ClemBert]

I think the main reason why I don't have a chrony is probably because I know I'd destroy it. :eek:

Speaking of chrony....who here is losing sleep at night because they want to know the results soooo bad they're willing to send me theirs? :evil:

I need to pal up with someone down here in the swamp. Pal prerequisites are a chrony and a high speed video camera. :scrutiny: