.223, h4895, ........ primer question added...

[brian923]

hey guys.

i started reloading some new rounds for my new AR-15. i got some 68 grn. hornady HPBT match bullets and and loading them in fornt of 25.2 grns of H4895. i have hornady new dimension dies and when i load them to 2.255", its leaving a ring around the canalure area of the bullet. will this devistate my accuracy??

does this load sound okay? i have a white oak armament 18", SPR SS MATCH barrel with a WYLDE chamber and 1/7 twist.

i also loaded up some 60 grn v-max bullets with the same powder load. same ring was left on the v-max bullets as well... being memorial weekend, there is no one at customer service, pluse i trust your guys' judgement before theres.

thasnk guys, and if you think you have a better formula, let me know,

thanks brian

 

[FroggyOne2]

I get that with a compressed load.. you can get it with hard seating due to a tight neck,ie, sized tight). Didn't hurt my accuracy.

 

[ronemus]

I frequently had rings when I was using a standard expander ball; it was ~0.002" under bullet diameter, so seating really included doing some neck expansion. Bullets are much softer than expanders and don't like to be used as such. I now use expanders that are bullet diameter; that gives ~0.0015" neck tension and maximizes bullet pull. Now I no longer see marks from the seater stem on bullets. You can order custom diameter expanders from Hornady, and the prices can be found in the catalog,either print or on-line). It takes a few weeks lead time depending on the production schedule.

 

[brian923]

heres another question. i am loading these loads for accuracy testing in my AR-15. i am using Winchester primers. i here that these might be to soft for the use in AR's... is this true??

 

[ronemus]

I've gotten the best accuracy and lowest SD/ES from WSR primers,WW or LC brass, RL-15 or N-550, 75 gr Hornady BTHP or A-Max), but they are a bit softer than the Remington 7-1/2 or CCI-41; however, they will handle a full-power load and then some. It's only an issue if you go WAY over the top on pressure. The WSR is my preferred primer for .223 loads.

 

[acloco]

Did you work up to that load? If not, start over.

I use CCI 450 primers. Chrono says that provides the most consistent loads.

If new brass, size the necks with a FL or neck sizing die. Will help make them round.

Good luck!!!

 

[brian923]

is varget and h4895 to slow for an 18" barrel??

i am also having a hard time finding info on loads using 68 grn hornady match HPBT's. is it okay to use sierras laods for the 69 " HPBT's? thanks brian.