Cast in AR

[Gunnut 45/454]

Well I took the 55gr Lyman load out to 100 yards today. I changed the target as I wanted to make sure I got all ten shots on paper. There was a good wind coming from about 1 o'clock at 15-20 mph so I'm sure that opened the group up some. Hold point was about 1.5" high of center as I'm not going to change my zero for these loads. I was right bumping the load to 18.7gr gave me perfect function an lock back after last round! To say the least I'm most please that I now have a totally fucntional lead load for my carbine.

[runfiverun]

i'm not sure if the holes are caused by the target not being tight to the backer or if they are oblong because of tipping, or instability.
i would weight sort my boolits and try the shooting again though.

[Gunnut 45/454]

I'd say my box is getting worn to which it was taped too! Going to need to replace my target holder!

[sewerman68]

Have any of ya'll shot Ranch Dogs 22 boolit in an AR yet? I have been considering getting that mold for my hornet and was wondering if it would work in the ar as well.

[Gunnut 45/454]

sewerman68
Nope but I've tried Beartooth cast. Good bullets. They shot fair out of my Carbine, better out of my Sav Hunter 11.

[BD]

Here's a little different take on cast boolits out of an AR. Now if I can just cure the flyers, I'll be all set. Buy the way, these weigh in at 300 grains and I'm running them between 1,800 and 2,150 fps.

[Gunnut 45/454]

Well I put these over the chrony today. 16" DPMS

Average Vel: 1792 fps ES 88 SD 44

I'm thinking of trying a slight crimp on these to maybe to get a better ES/SD.

[Roger Ronas]

OFF TOPIC

What is ES/SD? Can you explain these or direct to a thread?
Thanks
Roger

Well I put these over the chrony today. 16" DPMS

Average Vel: 1792 fps ES 88 SD 44

I'm thinking of trying a slight crimp on these to maybe to get a better ES/SD.

[357 Voodoo]

Roger,

ES is extreme spread the difference between the fastest and slowest
SD is standard deviation is a statistical calculation

The smaller these numbers are the more uniform the shots will be.



Gunnut,

you may want to try a 1/4 grain of fluffed Dacron filler it may help

[Roger Ronas]

Meant 357voodoo,
Thank you that helps.

Roger

[Gunnut 45/454]

357 Voodoo
Maybe! I think the cold is messing with the load as well it was 35 degrees out when I shot. I did get better accuracy at 18.5 but it was right on the edge of functioning the action- again cold when shot. I don't like to crimp cast but it does help with powder burn- atleast with my larger caliber loads. When I started crimping my 30-30 and '06 loads the ES/SD dropped a good measure! But I'm lary to crimp these little 22's!

[Dschuttig]

Which Lyman 55gr mold are you using? I've shot a few thousand 225646 bullets out of my ar, and no matter what I do with this bullet I get flyers...

[Gunnut 45/454]

Dschuttig
Mine is the 2660646 mold. As been said before with these little 22's you can't have any defects in them as they are magniied ten fold. I have about a 50% reject rate when casting. Then I weight them before loading to with in .3 gr +/-. And try to keep the OAL within .002" . Consistancy is the key.

[Dschuttig]

Done all that, still get a lot of flyers. 225462 seems to shoot a whole lot better, maybe its just what my rifle likes?

[Dschuttig]

I'm hoping the 5.56 AR group buy suggestion is a go......

[Gunnut 45/454]

357 Voodoo
Well I loaded up the next group- 5 with slight crimp, 5 with filler. Wind is blowing mock 90 today so when it calms down I'll get out and through over the chrony and see what we get.

[Roger Ronas]

Can you provide a link to that potential Group Buy mold?
Thanks
Roger

I'm hoping the 5.56 AR group buy suggestion is a go......

[WilNsc]

Great info, tagged for later.

[357 Voodoo]

Roger here is the link to the discussion thread
http://castboolits.gunloads.com/showthread.php?t=132267

[Roger Ronas]

Thank you