Print Page - I had to Modify one Dr Bob's Mags

Title: I had to Modify one Dr Bob's Mags
Post by: Ca_Varminter on June 06, 2020, 02:22:28 AM

The usual diet Ul_Ti_Mate Rapid is JSB Monsters @ 70 fpe.
When the JSB Beast came out there, I wanted to give them a try.
But they were too long!.....Couldn't use them in the mag!!

Monster(25grn), Baracuda(21grn), Beast(34grn)
(https://photos.imageevent.com/scl_electronics/misc/drbob/websize/Big%20Pellets.jpg)

The plan of attack is to cut a groove in the lid and also enlarge the groove in the bottom of the body of the mag.
(http://photos.imageevent.com/scl_electronics/misc/drbob/websize/Mag%20Problem.jpg)

So time to set up the CNC mill with my rotary table.
I clamp the lid directly to the table and cut the groove with a .25" endmill..
(http://photos.imageevent.com/scl_electronics/misc/drbob/websize/Mod%20Dr%20%20Bob%20Mag1.jpg)

Next is setup my 4 jaw chuck on the rotary table and secured the body of the Mag. I used a .25" round-nose endmill
to deepen the bottom groove..
(http://photos.imageevent.com/scl_electronics/misc/drbob/websize/Mod%20Dr%20Bob%20Mag2.jpg)

Here are final results...
(http://photos.imageevent.com/scl_electronics/misc/drbob/websize/Fixed%20Mag1.jpg)
(http://http:/%5Cphotos.imageevent.com/scl_electronics/misc/drbob/websize/Mod%20Dr%20Bob%20Mag3.jpg)
(http://photos.imageevent.com/scl_electronics/misc/drbob/websize/Mod%20Dr%20Bob%20Mag41.jpg)

They only downside to my modification...I milled off Dr Bob's Logo!!
(http://photos.imageevent.com/scl_electronics/misc/drbob/websize/Mag1.jpg)

Stuart

Title: Re: I had to Modify one Dr Bob's Mags
Post by: Daztilley on June 06, 2020, 02:43:40 AM

Great work stuart 👍
With more and more heavy pellets being made - could be an idea for a range of FAC magazines to be made 👍😎

Title: Re: I had to Modify one Dr Bob's Mags
Post by: Ca_Varminter on June 06, 2020, 03:19:30 AM

Thanks Daz,
This project was to expand the possibilties and
extend the life of the Rapid Platform!!
8) 8) 8) 8) 8) 8)
Stuart

Title: Re: I had to Modify one Dr Bob's Mags
Post by: Daztilley on June 06, 2020, 03:25:42 AM

It certainly does that stuart 😎

Title: Re: I had to Modify one Dr Bob's Mags
Post by: KCE on June 07, 2020, 09:00:49 PM

What a cracking read Stuart and quality pics to view.
You do have the perfect set up there to do the job.
How many rounds can you fit in the mag now.
Regards Kev.

Title: Re: I had to Modify one Dr Bob's Mags
Post by: KevG on June 07, 2020, 10:11:29 PM

Cracking work.how does your Miller look so damn clean.😁
KevG

Title: Re: I had to Modify one Dr Bob's Mags
Post by: The Robin on June 07, 2020, 10:16:51 PM

Nice job I love seeing what mods you guys come up with 8)

Title: Re: I had to Modify one Dr Bob's Mags
Post by: Ca_Varminter on June 07, 2020, 11:31:19 PM

Quote from: KCE on June 07, 2020, 09:00:49 PM
What a cracking read Stuart and quality pics to view.
You do have the perfect set up there to do the job.
How many rounds can you fit in the mag now.
Regards Kev.

Thanks Kev,
It still holds the Standard 12 Pellets..
I just didn't fill it completely for visualization...

Stuart

Quote from: KevG on June 07, 2020, 10:11:29 PM
Cracking work.how does your Miller look so damn clean.😁
KevG

Hey KevG,
Well the Gunsmith I helped with sales and a little gunsmithing...
He always had his apprentices cleaning their area..
He alway had them brushing off, sweeping, and vaccuming as they worked!
He hate watching machinist use air to blow thing off...

So as my Liitle CNC mill is doing it's thing, I vacuum up the swarf!!

THanks,
Stuart

Title: Re: I had to Modify one Dr Bob's Mags
Post by: Dr Bob on June 08, 2020, 10:37:47 AM

In Cyprus they use heavy .177 boat-tail pellets I have had to machine the cover out a few times for customers over there.

Bob

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Everything Technical About Rapid => Technical => Topic started by: Ca_Varminter on June 06, 2020, 02:22:28 AM