Thought this was interesting.

If you swage down the 50 bmg casehead 55 thou you can make the worlds most powerful 16 gauge. The rim of the 16 gauge and the rim of the 50 bmg are close and will headspace on the rim obviously but a washer will have to go in the chamber to get the thinner rim of the 16 gauge to fire or thin the rim of the bmg down 20 thou. Basicly you run a a 16 gauge reamer in a rifled 700 barrel (.700") or a custom reamer up to the max length of the bmg brass but I think just cutting the bmg brass off at the shoulder (3") is plenty IMHO but longer might keep you from needing to thin out the neck thickness.

You would end up with a gun that will be able to shoot off the shelf 16 gauge shot shels and the much more potent 700 nitro+ power 16 GFH

Rim .800"/.815"
Rim hight .082"/.062"
Casehead .745"
Neck OD .732"
length 3" (2.3/4 to 3.85")

This is an adaption of the RGB 12 GFH obviously

What say the Scientist and the Hubenetor?

Yes the bmg case can be reworked that far
by using my case lathe and getting right
swages. I take the bmg brass already down to
.775" base size ahead the belt on my 700s.Ed

Thanks for the confirmation Hubenator.

Seems like this could be a lot of fun.

Problem is I have no swages built in that range,
and where to find heavy .662" rifled barrels.
If a decent weight 16ga smoothbore could be found
you could lengthen chamber, and shoot Lightfields
which are supposed to work ok in smoothbores.Ed

quote:

Originally posted by hubel458:
Problem is I have no swages built in that range,
and where to find heavy .662" rifled barrels.
If a decent weight 16ga smoothbore could be found
you could lengthen chamber, and shoot Lightfields
which are supposed to work ok in smoothbores.Ed

Ed get a hold of macifej he is/was working on a .666 rifle.

quote:

Originally posted by hubel458:
Problem is I have no swages built in that range,
and where to find heavy .662" rifled barrels.
If a decent weight 16ga smoothbore could be found
you could lengthen chamber, and shoot Lightfields
which are supposed to work ok in smoothbores.Ed

Ed...

This idea would shoot .700" bullets.

This would not be for shotguns but single shots ect.

Yes it could be used to do a traditional 16 GFH and the 16 gauge .662" smooth bore.

Boomstick- yes it will work but I HATE SWAGING CASES! Too many steps for me. Might be fun to screw with the california big bore laws though like the 12gaFH.-Rob

quote:

Originally posted by Robgunbuilder:
Boomstick- yes it will work but I HATE SWAGING CASES! Too many steps for me. Might be fun to screw with the california big bore laws though like the 12gaFH.-Rob

Hi Rob. Thanks for the reply. Yes, swaging cases is a labor of love but that aside this could be an alternative to making new rims and using the 700 bullets.

Be best to deepen a 16ga chamber, slugs are available and
less expensive than 700 bullets. You get 24 slugs
for $15, and cases last forever.
You don't have to buy a 300 dollar barrel.
Just go on Gun Broker and find a 16ga bolt action
or break action. In fact I have half of the swages
needed to do cases, need to make two more from the
Hollywood stuff I have here. I can make you a few cases
and round up a 16ga to lengthen chamber. You let me
know and I'll do it as inexpensive as possible.
And you'd be able to shoot all 16ga plastic
loads whether factory ot you reload, in
same chamber, whether foster slugs, lightfields,
buckshot, and fine shot.And longer brass case besides
lightfields you can load shot, etc, with an overshot card.
Just like the experimenting I do with the 8ga smoothbore..Ed

http://www.gunbroker.com/Auction/ViewItem.asp?Item=114463108

this one looks like fun

This could go either way...700 or 16 ga

And on my case spinner/lathe I can make
the rims the right thickness to fit
16ga chambers. Even in 16ga with moderate
weight barrel, that brass case with our
powder we use for shotgun primers,
4227. 4759, and VV110, you'd get 390gr(7/8 oz)
up to 21-2200 fps or more. That is
4,000 ft lbs in a 16ga..

A better shotgun is a bolt action Mossberg
390 I think 16 gauges are called.
20 gauges are 385s and 12 gauges are
395s, 495s, 595s, 695s that they use
for model numbers. I got 395(12ga) size here
for my 28ga FH barrel. You can open the port
easier for longer case and Mossy 300 series
on up are alloy and double locking lugs..Ed

Ed... with 3.5" cases with the bullet loaded out I would guess the 16 GFH be able to do say 850 grains @ 1800 while keeping to 28k psi to get over 6,000 FPE am I off??? Kinda like an old school velocity super size 45-70.

That would be a thumper.

I guess 20 cases would last a lifetime.

OK I guess 3.25" is the best length per Ed as far as ease of making cases and action fitting. That is a helova capacity/whomp no matter how you slice it.

With only swaging 50 bmg cases down 20 thou you can make mini rimmed 700 nitro cases as well as the 700 derivatives of the 700/577 Westley Richards and 500 Rafiki. that would be an easy way to get around custom dies and reamers for a big boomer bolt action. The 700 Nitro is 3.25" case as well.

Who wouldn't want to turn a 12 gauge bolt into a 700 nitro semi rimmed or a 700/577???!!!

Damn that 700/577 looks cool. no headspace issues there. looks like a super size 404 Jeffery

Damn! I think I want them all!!!

The Rafiki is a sporting round so that is a way to use a sub 50 bmg class rifle for hunting and travel.

quote:

Damn that 700/577 looks cool. no headspace issues there. looks like a super size 404 Jeffery

It sure does! I think Biggdoggy700 or SAFARIKID need another double.

I turned a couple 12GA FH cases down to make 700NE
And shortened them to their 3.5" case length,
and I have this pic of one in my Savage bolt
action just to show it fits as well as 12GA FH.
700NE is 3.5", .35" shorter than 12GA Fh.
You could build one on a Savage 210 like in pic.
I have my 700HE 3.25" in a SAvage already as well
as the 12GA FH in the other.Ed