Due to Bergers now being cheaper than a lot of Nosler & Sierra oproducts I ordered some 64gr Column proj to try in my Howa mini. I put the mini back into the old Howa Kryptek stock with a some fresh bedding in the knox area to stiffen the stock and improve accuracy.......
I had just run out of 8208 so a quick look on burn rates chart showed the closest powder I had on hand was Re10X ( in between H322 and H335) which are mention in Hornadys data for 65gr Vmax's.
I started a bit on the low side at 27gr and stopped at 29gr, there is still a bit of space left in the case and I suspect Im probably around 1.5gr off top load....
6mm ARC brass, Rem 7.5, 1.485, RE10x, Berger 64gr, 2.100.
Charge Velocity
27.0 3082 3075 3081 3098 3063
27.5 3080 3118 3119 3135 3113
28.0 3129 3184 3173 3163 3178
28.4 3215 3224 3198 3234 3255
28.7 3251 3277 3271 3263 3271
29.0 3274 3297 3276 3291 3305
ealry accuracy in the first 3 groups then things went a little all over the place, hoping there is a higher node above 29.0gr other wise I'll play around with the 27.5gr load. Next session Ill throw the mini back into the chassis.
I had just run out of 8208 so a quick look on burn rates chart showed the closest powder I had on hand was Re10X ( in between H322 and H335) which are mention in Hornadys data for 65gr Vmax's.
I started a bit on the low side at 27gr and stopped at 29gr, there is still a bit of space left in the case and I suspect Im probably around 1.5gr off top load....
6mm ARC brass, Rem 7.5, 1.485, RE10x, Berger 64gr, 2.100.
Charge Velocity
27.0 3082 3075 3081 3098 3063
27.5 3080 3118 3119 3135 3113
28.0 3129 3184 3173 3163 3178
28.4 3215 3224 3198 3234 3255
28.7 3251 3277 3271 3263 3271
29.0 3274 3297 3276 3291 3305
ealry accuracy in the first 3 groups then things went a little all over the place, hoping there is a higher node above 29.0gr other wise I'll play around with the 27.5gr load. Next session Ill throw the mini back into the chassis.
