Just bought 1K 185 juggernaughts

[762willdo]

Anybody have any luck shooting them out of an AR10?
have any loads?

 

[DocBII]

762,

Better off using 178 ELDM and N-140. See earlier post.

HTH,
DocBII

 

[D-4297]

If they don't work in your AR , dump the junk ( AR ) . 10,000 F-TR shooters can't be wrong . One of the most highly used bullets in TR in the world . I'm sure someone here can come up with a workable load for that if you give a few more specifics on your rifle . Like barrel length , Freebore .

 

[bpd459]

Greetings,
I've seen US Army National Guard, All guard team shooters, using them in their M110's at 1000yd.
John

 

[Ned Ludd]

The 185 Juggernaut will be sunk pretty far down in the neck when seated to be fed from a magazine. Nonetheless, they should shoot just fine, assuming the rifle has at least a 12-twist barrel (preferably 11-twist). If you're feeding from a mag as is likely, just be sure to start out well to the low side with charge weight testing, as you will have less effective case volume with the bullets seated well down into the case. For seating depth testing, determine the longest average COAL you can reliably feed from your magazine. Next, determine average CBTO for those same rounds and set that as your "zero" reference point, then test bullets seated incrementally farther from the lands. Regardless of the actual distance from the lands, you should be able to find an optimized seating depth window using this method, and by starting at the "zero" reference point with regard to feeding from the mag, and only seating bullets further off the lands, whatever load you come up with should not be too long feed reliably.

The 185 Juggernaut is likely a much heavier and longer bullet than you will likely be accustomed to loading for an AR platform. However, it is very forgiving with respect to tuning loads (i.e. seating depth). There is no need to push it excessively hard with respect to velocity/pressure. Let the rifle tell where it wants to shoot and if the resulting load seems a bit slower than you might be accustomed to, so be it. The higher BC of the Juggernaut will take care of that.

Edited to add: if for any reason you are not satisfied with the performance of the Juggernauts, don't be concerned, as you can easily sell the remainder off. If that happens, I would suggest giving the Berger 175 OTM bullet a look. It also has a tangent ogive, a good BC, and is very forgiving to tune, but is a little better suited to feeding from a magazine due to its shorter length dimensions.

 

[XTR]

^^
i can’t add anything to that.

 

[Michael C]

I agree with Ned. I shoot 185 Jugs out of my M110 clone at 1000 with good success. However, this is a 10 twist, long throated barrel and it’s single load only not mag length. I have a 4.5x scope (per CMP/NRA rules) and my best string so far (not that I punish myself with this thing that often) has been a 196-8x. That slung up and shooting prone. If you want to shoot mag length there are better bullets. But, my buddy does shoot them mag length in his Obermeyer chambered M1A at 600 with good success in NRA/CMP matches. But, he admits the 175OTM shoots better on average and is still good in the wind.

 

[762willdo]

Thanx guys