Is any one casting for a big bore AR?

[slownsteady22]

I was pondering buying a big bore AR type rifle, if you have any experience with one fill me in on the in's and outs. The use will be mainly hunting medium and large game, and of course who doesn't like to shoot big balls of lead at paper. Thanks in advance.

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[Reddirt62]

I was pondering buying a big bore AR type rifle, if you have any experience with one fill me in on the in's and outs. The use will be mainly hunting medium and large game, and of course who doesn't like to shoot big balls of lead at paper. Thanks in advance.

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Please define big bore. I have a lovely Sig 716 308 that I am beginning to cast for.

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[slownsteady22]

.35 and up.

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[Moleman-]

I've got 9 or so AR's so far that meet that requirement. Only shot cast in 4 of them so far. Been using jacketed so far for hunting, but tried some 208gr bullets cast by member KLR in a 357AR (max-rimless). He suggested I join Cast Boolits . I want to hopefully switch over to mainly cast in the medium/big bore AR's, especially for the .430" bore ones. I've read through many posts for guys with 450 bushmasters or 50 Beowulf but am still trying to figure every thing out as so far it seems much less forgiving that casting auto or revolver plinking ammo which is mainly what I've done the past 25+ years. Here's the first target shot with some cast .358" 208GR FN bullets KLR sent me to try. Worked well enough I got the mold and a lubrisizer.

[slownsteady22]

Is your 357 maximum compatible with a .223 upper BCG or will I need a a hole new AR ?

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[Greg S]

It is a straighten/ blown out 223 case they use for 357 max rimless I believe, same bolt.

[rnelson11]

I cast for my 50 Beowulf.

[Moleman-]

Is your 357 maximum compatible with a .223 upper BCG or will I need a a hole new AR ?

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It uses a carbine length gas system, and a standard BCG. http://castboolits.gunloads.com/showthread.php?312313-357AR-(Max-Rimless)-AR15

[nagantguy]

I've got 9 or so AR's so far that meet that requirement. Only shot cast in 4 of them so far. Been using jacketed so far for hunting, but tried some 208gr bullets cast by member KLR in a 357AR (max-rimless). He suggested I join Cast Boolits . I want to hopefully switch over to mainly cast in the medium/big bore AR's, especially for the .430" bore ones. I've read through many posts for guys with 450 bushmasters or 50 Beowulf but am still trying to figure every thing out as so far it seems much less forgiving that casting auto or revolver plinking ammo which is mainly what I've done the past 25+ years. Here's the first target shot with some cast .358" 208GR FN bullets KLR sent me to try. Worked well enough I got the mold and a lubrisizer.
And here he is, my suggestion to the OP was going to be to contact moleman ;there are several others whom are sage and wise in this area but moleman is wise and has hands on been there done it,he's a fellow MI boy and he's been extremely helpful with advice and answering my questions !

[Efin]

I cast for the my 458 Socom, lots of variety, all gas checked...

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[blademasterii]

I cast for .458 8'' suppressed/ subsonic and .50 beowulf. Good number of loads for the .458 far fewer for the .50.

[Smoke4320]

Yes 458 socom .. mostly 350 gr HP's Powdercoated of course :)

First target is suppressed subsonic 195641
Second target is Full speed with suppressor

195643

and Lee 500's for suppressed 195642