Ultra25-06
Active Member
Been interested in seeing what kind of performance I would get. Havent been able to find much info anywhere with this caliber and bullet combo. I plan to update this as I tinker for anyone interested.
Rifle - Savage 11, .308 win, 20" barrel, accutriger , factory stock, bipod
Scope - Bushnell elite 10x
Brass - OFV (mill surplus)?, only unused .308 I had around, not the best. Only prep work FL size and trim. Plan to try virgin win and lapua in the future when I can get my hands on some.
Bullet - 200gr Nosler Accubond
Primer - Rem mag LR
Powder - IMR 8208 XBR
The load data contained in this forum is intended for use with specific components. Other manufacturers components may not produce equivalent pressure or velocities; therefore, it is recommended that the user be familiar with the basic rules of reloading safety.
todays weather - 32F, 27 dew point, 79 humid, 23mph nw
35.5gr
2158fps
es 66
36gr
2180fps
es 49
36.5gr
2040fps
es 1162
37gr
2266fps
es 93
37.5gr
1941fps
es 149
38gr
2314fps
es 21
38.5gr
2328fps
es 57
39gr
2425fps
es 34
39.5gr
2382fps
es 35
Never had a sticky bolt or supposed pressure signs for any loads.
All 5 shot groups, 100yds, all groups sub moa, will post pics for each load when time allows. Not the best results but I belive the brass is part of my problem flash hole are about as far from uniform as one could imagine and may be crappy brass to begin with.
Im not sure if the es spread is from the wind shaking the chrono or not. Would like to see teens or single digits but this is only the first load development. I need to try good brass, diff primers, etc... I have 3 lbs of Imr 8208 XBR so that will be my powder for the time being.
The drop in velocity from 39gr to 39.5gr has me wondering. Can anyone chime in as to why? I would also like to know approx. pressure if anyone has the software and doesnt mind spending the time.
Untill next time.
Rifle - Savage 11, .308 win, 20" barrel, accutriger , factory stock, bipod
Scope - Bushnell elite 10x
Brass - OFV (mill surplus)?, only unused .308 I had around, not the best. Only prep work FL size and trim. Plan to try virgin win and lapua in the future when I can get my hands on some.
Bullet - 200gr Nosler Accubond
Primer - Rem mag LR
Powder - IMR 8208 XBR
The load data contained in this forum is intended for use with specific components. Other manufacturers components may not produce equivalent pressure or velocities; therefore, it is recommended that the user be familiar with the basic rules of reloading safety.
todays weather - 32F, 27 dew point, 79 humid, 23mph nw
35.5gr
2158fps
es 66
36gr
2180fps
es 49
36.5gr
2040fps
es 1162
37gr
2266fps
es 93
37.5gr
1941fps
es 149
38gr
2314fps
es 21
38.5gr
2328fps
es 57
39gr
2425fps
es 34
39.5gr
2382fps
es 35
Never had a sticky bolt or supposed pressure signs for any loads.
All 5 shot groups, 100yds, all groups sub moa, will post pics for each load when time allows. Not the best results but I belive the brass is part of my problem flash hole are about as far from uniform as one could imagine and may be crappy brass to begin with.
Im not sure if the es spread is from the wind shaking the chrono or not. Would like to see teens or single digits but this is only the first load development. I need to try good brass, diff primers, etc... I have 3 lbs of Imr 8208 XBR so that will be my powder for the time being.
The drop in velocity from 39gr to 39.5gr has me wondering. Can anyone chime in as to why? I would also like to know approx. pressure if anyone has the software and doesnt mind spending the time.
Untill next time.