ss109 handload accuracy issues

[bocefus78]

I have been trying to find a load for some 62gr ss109 pulled projectiles. I have tried h335 and h322 without success. Anywhere from 21-24 grains of charge depending on the powder used. These are being fired from a 1 in 8" twist 16" AR.

At 25yds, the best 5 shot group I can get is at least an inch, if not more. No 2 holes touching. I didn't bother measuring because I was mad. This is from a rest, scoped, etc. In my mind, there is no reason I cant get .5 in or less at 25yds. On the same day, same rest, same everything, 55gr FMJ Privi Partisan factory ammo produces 5 shots touching each other.

With that said, is this what people talk about when saying these projectiles aren't very accurate? I'm not looking for match quality, but I would expect them to perform moa or at least close at 100yds and closer. These groups would have been around 4-5 moa.

If I cant make these work well, I will sell them and buy some Hornaday 55gr FMJ,

 

[MtnCreek]

Shoot them at 100yds. Unless there's something wrong with them, you should get 3moa or better. IME, they don't shoot as well as hornady 55fmj.

 

[CLP]

that's good enough for government work

 

[Joea132]

I find that ss109 bullets are not inherently accurate. I really like using Hornady HPBT bullets in 5.56x45mm. I get my best accuracy from a 75gr HPBT bullets. My last load I used power pro 2000mr. I think you'll have better accuracy with a heavier bullet.

 

[bocefus78]

MtnCreek, I wondered if more distance would allow more time for stabilization. Is that basically what you are saying?

Since these wer just test rounds, I only had a few and didn't shoot any farther than 25yds.

 

[joem1945]

I have one AR that really like SS109 but it's a 1/9 twist. In my 1/8 twist AR, 75 gr black hills ammo that gives me three holes touching from a rest with no wind if I do my part.