I believe I have found my "node" for the Alamo Precision Rifle in 6.5 Creedmoor. Rifle is built using APR’s action, their “house barrel” (I forget who exactly they use) and a Hellfire comp. As of today, this rifle has 200 rounds down the barrel.
The same 10 loads were loaded and shot on three separate days. I used a Magnetospeed to obtain the velocity.
Components consist of virgin Hornady brass, 140gr ELDs (.020" off lands), CCI 200 primers, and H4350.
No special care has been taken to sort the brass by weight. A Redding S die (.290” bushing providing ~.002” neck tension) was used to size the brass. I then trimmed the brass prior to firing. First two strings, the bullets were seated with the Redding Competition Die. On the final string, i used a Sinclair arbor press and a Wilson die.
I did not sort the bullets by weight. However, I did sort them by base to ogive length..
There is likely another node up higher. However, I do not feel another 50 fps or so is worth chasing. I am rather pleased the entire 12 shots within the "node" have an ES of 11 fps.
The same 10 loads were loaded and shot on three separate days. I used a Magnetospeed to obtain the velocity.
Components consist of virgin Hornady brass, 140gr ELDs (.020" off lands), CCI 200 primers, and H4350.
No special care has been taken to sort the brass by weight. A Redding S die (.290” bushing providing ~.002” neck tension) was used to size the brass. I then trimmed the brass prior to firing. First two strings, the bullets were seated with the Redding Competition Die. On the final string, i used a Sinclair arbor press and a Wilson die.
I did not sort the bullets by weight. However, I did sort them by base to ogive length..
There is likely another node up higher. However, I do not feel another 50 fps or so is worth chasing. I am rather pleased the entire 12 shots within the "node" have an ES of 11 fps.
