cast boolits for AR-15?

[rondog]

So I've been wondering about cast boolits for my AR-15 - anybody do this? I see there's molds available, GC and PB, in different styles/weights. I'm assuming GC's would be best?

My AR is just a standard DPMS 16" carbine, don't know the twist rate but I'm sure it's nothing fancy, whatever's normal for a 16" carbine.

Any mold/boolit suggestions? Threads already about this topic? I have no luck searching here, always end up out in Google-land.

[Ford SD]

So I've been wondering about cast boolits for my AR-15 - anybody do this? I see there's molds available, GC and PB, in different styles/weights. I'm assuming GC's would be best?

My AR is just a standard DPMS 16" carbine, don't know the twist rate but I'm sure it's nothing fancy, whatever's normal for a 16" carbine.

Any mold/boolit suggestions? Threads already about this topic? I have no luck searching here, always end up out in Google-land.

Try reading this http://castboolits.gunloads.com/showthread.php?156326-AR-15-500-Round-Cast-Bullet-Test
or
Copy this in to your web brouser and do a word search
try https://cse.google.com/cse/home?cx=001951264366462437169:ggn3vg-bjum

Lots of posts on here, you could spend days reading

Cast in 223 is not difficult --- I did it on first try in my ar with no leading

GC is required
you need to know your twist -- a 1/12 would be the best
1/9 harder to do
1/7 most difficult and the slowest velocity before you look at your target and call SHOTGUN groups

Read RPM threshold --- I have seen it happen in my rifles

A filler " Dacron " might be needed depending on load/ bullet combo

Don't expect Fast velocitys

Only Make a small test batch to prove it works befor you put all your eggs in one basket

[berksglh]

I have a DPMS 3G2 that I shoot 55g Lee cast (not the Battor mold!) as well as a NOE .228" 72g. I powdercoat both and they get loaded with around 16g ? of Ramshot TAC. I pounded a test cast and measured my throat, thats why I went with the .228 mold.

The Lee mold is great for plinkers and shooting steel plates. i use the 72g NOE for accuracy, getting 1.5" or smaller groups at 100yds.

Heres my current load and group.

155205

And another older test
155206

[EMC45]

That top group is great!

[GabbyM]

Several different chambers in AR's. 5.56mm NATO has a throat diameter of around .227". 223 SAMI is .225". Your twist rate should be stamped on the barrel in front of sight. Top or bottom.

[tsubaki]

My AR is just a standard DPMS 16" carbine, don't know the twist rate

Best I can tell, all of their 16" barrels are 1:9" twist.

[berksglh]

Best I can tell, all of their 16" barrels are 1:9" twist.

Thats what my 16" DPMS is. Also a 5.56.

Use a Tight fitting patch, mark 12 o'clock on cleaning rod by handle, push in till one rotation of your mark, measure distance rod went in. 1 rotation in 9" is whats advertise and what I measured on mine.

Happy shooting.

[Moonie]

Be careful, I hear doing that will cause all your babies to be born nekid...