Load tuning pics
Posted: Sun Apr 26, 2015 1:13 pm
Hi guys,
On another post there was some talk about how to load develop VLD projies. I have never done this but i have loaded up varying OAL's and tested them at 300y and here are the pics. I know 2217 isnt the best powder for a 243 and a 2805fps it is way short of its max potential but the load works and i have never tried to find the next node, i cant see the barrel lasting a long time so i saw no need to hurry it along. When i got the rifle i just finished loading some 3200WM rounds so i had 2217 in the powder thrower so i used it to load some run in ammo. I went in 0.5gr jumps from min to max load and fired them over the chrono whilst cleaning the barrel on a 50m range. I was surprised when the 45gr load put them all into the same hole so after it was run in i shot them at 300y and have never tried anything else. This pics show a 0.005" variance in OAL between each load. All rounds were fired over a Farley Rest with no adjustment for the wind.
Rifle: DTA
Calibre: 243
Powder: 2217
Charge: 45gr
Primer: Fed GM
Base to Ogive: see below
2.200
2.205
2.210
2.215 - typo in the pic, its 45gr
2.220
2.225
2.230
2.235
I havent gone to this extend on any other rifle since but when i get time i will if i think they need fine tuning.
On another post there was some talk about how to load develop VLD projies. I have never done this but i have loaded up varying OAL's and tested them at 300y and here are the pics. I know 2217 isnt the best powder for a 243 and a 2805fps it is way short of its max potential but the load works and i have never tried to find the next node, i cant see the barrel lasting a long time so i saw no need to hurry it along. When i got the rifle i just finished loading some 3200WM rounds so i had 2217 in the powder thrower so i used it to load some run in ammo. I went in 0.5gr jumps from min to max load and fired them over the chrono whilst cleaning the barrel on a 50m range. I was surprised when the 45gr load put them all into the same hole so after it was run in i shot them at 300y and have never tried anything else. This pics show a 0.005" variance in OAL between each load. All rounds were fired over a Farley Rest with no adjustment for the wind.
Rifle: DTA
Calibre: 243
Powder: 2217
Charge: 45gr
Primer: Fed GM
Base to Ogive: see below
2.200
2.205
2.210
2.215 - typo in the pic, its 45gr
2.220
2.225
2.230
2.235
I havent gone to this extend on any other rifle since but when i get time i will if i think they need fine tuning.