I recieved my .416 AR from Jeffosso yesterday afternoon and couldn't wait to get out and shoot it a little. No really shooting for target but rather to get a feel for how it roars.
But before that let me tell you that Jeffe did a great job with the rifle. The stockwork, addition of the H&H sight with moonsight flip up, sling swivel (barrel mounted) and details for the rifle were very well handled and executed wonderfully. I could not be happier. He even threw in a great scope base and although I intend to shoot it mostly with a peep sight I will be initially testing it with a small Leupold 2.5x8 scope. Don't know yet but I know it will look great with whatever I use. Jeffe also did a bead-blast blueing which really suits my fancy as I don't really like shiny barrels on working rifles. He has also reminded me that he added a rod through the wrist for strength.
If you haven't seen the .416 ammo loaded up you will really enjoy the look. It carries a perfect shoulder for headspacing and "look Ma, no Belt"
A very slick looking round.
Jeffe tells me I should find 2400 with no problems but I am really hoping to push that a bit and left the barrel a little long to help with that.
If you hadn't followed the development of this cartridge I should also tell you that he built it on a Ruger 77 tang safety (former 7 mag). I love the feel of the 77 stock which was originally designed for Bill Ruger by Brownell of Brownell or Mr. Brownell his on self. It is a terrific rifle design and I am glad some people haven't discovered it yet 'cuz it has allowed me to own a bunch at still reasonable prices.
I will be setting out this weekend with Chrono and bench to see what I can see and shoot it some as well as taking a few photos for everyone else to see.
Do I sound pround? Hell yes I am, and Jeffe should be too! Hell of an accomplishment to create a real comer in this day and age.
So once I finished looking it over and covering my ears and eyes I let fly with a few round and let me say that if these rounds were reaching 2400 I was a very comfortable pup with what was to come. Easy recoil to be comfy with. The extra weight of the barrel helped with taming muzzle rise and the shells slid out easily with out showing any ill effects.
Next time I will be running the O '35 and testing for speed and variation but for now I need to slow my heartrate a bit from the joy of knowing I will be having fun with this for a while.
Frank
Can't say for sure if I have a first but one of those ayway.

Great post. I believe my first Big Bore will be a 416AR. Seems to be just about right, looking for the right deal on the right rifle to be Frankenstiened.

Frank, glad to hear that you like your little monster. The 416AR is a very nice round to shoot. Being the first person to shoot it, after jeffe, that is.

Jeffeosso's three AR rounds all perform beyond their appearace in size. Very efficient.

Now go get it blooded.

Hog Killer

what.....no pics?......

congrats!

cant wait to have mine...

SHHHHHH!...dont let everyone know jeffe is a great smith...he might get so busy he will raise his prices

good job jeffe...you da man!

Photos will follow. I just can't shake any time until Saturday.
Frank

quote:

Do I sound pround?

Frank, I think you have every right to be proud!
Congratulations and WTG Jeffe!

I'm curious and can't seem to find any info on the .416AR. What case is it based on and what modifications to that case, if any, are there?

Frank, glad you like it!!

MR,
it's baed off the rum case, shortened and improved

http://weaponsmith.com/AR-rounds1.html

breaks 2400 with ease with 400gr bullets, and the 458 and 470 break 2300 with ease ith 500gr bullets
jeffe

Found it on your website, thanks. By shortening and improving, does it give you the same/less/more capacity as the .404 Jeffrey case? Is the rim anymore rebated than the RUM case?

Same rim as RUM, no changes. Can't say about the 404 but it has 5-7% more than a 458 Lott. I think 2300 with the 458/500 gr combo is conservative. I think I'll get up around 2450 with my 26" barrel. Don't know how long it will stay 26" but so far it isn't too cumbersome, just a little out of balance.

The reason the case was blown out is so we had enough shoulder to headspace the 470 on.

Gives up some capacity on the 404 due to the shortening.

The goal of the endevour was to have chamberings that used common brass, common std length mag actions, minimal gunmith work, and case capacity on par with the full length mags.

quote:

Originally posted by Paul H:


The goal of the endevour was to have chamberings that
used common brass,
common std length mag actions,
minimal gunmith work, and
case capacity on par with the full length mags.

Paul, we did it.. Mission accomplished!!!

3.87% (call it 4)% more case capacity than a lott

on a 7rem mag action, generally takes an hour or so to work out feeding

brass is easy to get and make

brass is CHEAP

performance is nice

and it's the only 470 that fits in a standard length action, and beats the 470 NE

Good show !

Sounds like a nice rifle / cartridge combo

Jeffe
Are you going to be able to swing brass with the proper headstamps?

You all deserve a big pat on the back for getting this family of cartridges up and running so quickly.

Jeffe, Any plans for a .375 AR, or .358 AR?!?

quote:

Originally posted by woodsracer:
Jeffe, Any plans for a .375 AR, or .358 AR?!?

Jeff doesn't build varmint rifles.

George

quote:

Originally posted by GeorgeS:

quote:

Originally posted by woodsracer:
Jeffe, Any plans for a .375 AR, or .358 AR?!?

Jeff doesn't build varmint rifles.

George

Actually the .375 AR would almost be a duplicate of the 375 Dakota. I've been nosing around this round as well..... 2,700'/sec with 300 grain bullets is not at all difficult to do. And it can be done on a '98 Mauser if you wish.

i am still in for the nifty fifty AR

the 358 and 9,3 would make the most sense since you might be able to get 75fps over the 375 dakota they dont make a 9,3 or 358...

you could with the a.r. make the fastest 9,3 in a std action but better yet with the 358 you would have the most versitile round. yes blah blah legal d.g. africa at least 375 wildcat (yawn) heard it before...

the 358 a.r. could chuck pistol bullets @ 3,300 ish fps and heavy bullets @ 3000 ish fps you could get 600 fps over a whelen and 300 fps over the norma mag! all with nooooooo barrel change! better than the 358 sta in a smaller package...

it would be a tad overkill but loading down to the whelen might be better for your everyday shooting/deer hunting needs

this WOULD be a varnmit rifle AND a gun that could smack the heck out of anything with 5,000 ft lbs of power!

damn toot'n! 50 a.r. is gunna rock!

quote:

Originally posted by GeorgeS:

Jeff doesn't build varmint rifles.

George

TOO FUNNY!!!! AND TRUE

The other thing is you really can't do anything in the 375 and under that isn't already well covered.

paul...

not the 358 and 9,3

the whole point was cheap brass cheap actions cheap smithing that would duplicate larger rounds...358 sta+ in a std action!

the fastest 9,3 in a std action...

that is not well covered...

the 30, 338 and 375 would not be of much improvement given the dakota line granted...

ooooh, forgot to mention the nasty belt thing

yes the 350 rigby is great but the brass???

the 35 newton is great but....the brass!

the norma is great but...faster by a good margin and no belt

the 358 sta is great but...belt and biger action

there is a niche for the 358 and 9,3

I sat at the bench last night and played with loading using the dies I got from Jeff. I need to order my dies from Dave which are matched to my fired brass. It wasn't difficult at all and believe me using half the powder I am using for loading the Rigby and so much less than the .416 RM was welcome. I have ordered another tub of 4895 and 4350 to test along with 335 which I have already been using.
I am heading out with another box of 20 on Saturday and will post some results and photos after that.
Frank

I agree with Jeff that the .470 is the way to go. He sent me a sample cartridge and it is the best of both worlds. Big and Bigger in the Standard action. I stood the .416 next to my 11.2x72 Schuler and they are exactly the same length which is the longest that will fit in the action.
Frank

Frank,
dave has fired brass in hand, waiting your order.. yeah, the modifed 416 rigby (lathr turned stuff) work, but not great!

glad you are having fun
jeffe

quote:

Originally posted by boom stick:
ooooh, forgot to mention the nasty belt thing

yes the 350 rigby is great but the brass???

the 35 newton is great but....the brass!

the norma is great but...faster by a good margin and no belt

the 358 sta is great but...belt and biger action

there is a niche for the 358 and 9,3

Yes, 350 Rigby brass sucks, well I guess the hornbear stuff is good, but I haven't been able to find any.

35 Newton, yup

358 Norma, I don't think there will be a great increase in velocity, maybe 100 fps or so, but not sure it's worth the effort. I mean, if 358 Norma isn't enough for you, wouldn't you go all the way to 358 Ultra? And whats the big deal with belts, I shoot several belted rounds, and beltless ones, and have not a wit of a problem whether they are there or not.

358 STA, see 358 Ultra.

if there is no function to the belt it needs to follow evolution and just fade away

i think it should have a lot more than 100 fps on the norma...

quote:

Originally posted by boom stick:
if there is no function to the belt it needs to follow evolution and just fade away

I second that as well!!!! If there is a useless belt, it's taking up room that could be used for case capacity.

I think with these larger rounds in standard boxes the belt eliminates the ability to get 3 down without going back to the perch belly.
Frank

I'm with boomstick on the matter, I'd love to see a .358 AR. That would take me from carrying my heavy CZ550 in .416 Rigby for elk, to carrying my light weight .358 AR, and let my dad continue to use my deer rifle.....the .35 Whelen that I built.

GeorgeS, while I found your comment profoundly humorous, I don't see the little ole 7mm Mauser a varmint caliber, and it has dropped plenty of Elephants in its day.

we might need a 358 a.r. petition

but this is not a democracy, it is a benevolent dictatorship run by "el jeffe" (the spanish pronunciation, heffe)

i am greatful he has done what he has

but the 358 would rock! it could be a varnmit, woods and plains game rifle able to dispose of brown bears with ease.

long live "el jeffe"

woodsracer,

Thanks for diminishing the joke by trying to get the last word.

George

There certainly isn't anything stopping one of you 358 fans from ordering a reamer.

has jeff designed the 30'S ?

i have to finish my 470 first...

if i could pick a second a.r. i think the 358 would be topps.

i would love to see it developed if someone has the means and desire.

any takers?

My point was that one doesn't need to wait for Jeffe, take the bull by the horns. Call Manson and tell him you want another AR in 358, no other changes.

No disrespect to jeff; I just don't think this is high on his to-do list. Enjoying his 416, 458 and 470 probably is.

yes you are right, jeff has a life outside a.r.

does anyone have the means and desire to get a reamer?

Sorry but I already have a safe full of varmint rifles.