This time with a chroney.
For awhile now, its been to overcast for me to use a chrony , After all it winter in oregon and here even the rust gets rusty.
But I saw enough sun today when I got up to give it a try.
Packed up my Kimber .308 and drove over to clark county rifle range in vancouver wa.
I already had a good hunting hunting load with a 150 grain speer hot core over 47 grains of IMR-4064, shootin and avarage of about .80 inches for 3 shot groups.
Today, I had a slightly hotter load with 47.5 grains of the same powder and all else the same.
I will revert back to the 47 grain load as the half grain increase brought my group size up to an avarage of 1.42.
velocity avarage was 2863.
I had another load to try with the same 47 grain charge as I had already had good results with only I toped the winchester case with a 150 grain sierra pro hunter.
The rifle clearly likes the 47 grain chg weight as I got an avarage of 1.02 for 5, 3 shot groups.
Not quite as good as the speer bullet but a difference of .22 at 100 yards off sandbags , is as likly the shooter as the componants. (at least if the shooter is me) velocity avg, was 2852.
Gotta love that.
So now I will be equaly happy with either bullet for deer hunting.
And I take a little joy in knowing my load will be as fast as most factory 06 loads with the same weight bullet.
I also tried a load with 47 of IMR-4064 and the CT-coated fail safe.
I had my only called flyer of the day with this load only leaving me 8 to test.
velocity was at 2747, stll good enough, I bet the coating was the reason for the 100 FPS drop ?
And a 3 shot group was 1.45 and a 5 shot group was 1.67.
Not a great shooter, But I bet a little experimentation would tighten things up, and This bullet would be a dandy for a black bear load from a stand.
The last load I tried was with Hornadys 150 grain SST. The newest hornady book lists a max of 44.9 grains. (quite a bit less than anybody else) I did one of the things we are suposed to never do and started there.
I only loaded 3 just as a safty test and 1 at 46 grs.
The grouped into about 1.4 and gave no obvious sighns of presure.
When you consider this rifle with the 2.5X8 Ziess conquest weighs about 6 LBs.
I am completly satisfied with the results so far.
Any load that avarages an inch for 3 shots at 100 yards is plenty good enough for this deer hunter.
Tommorow,
i am suposed to help a buddie with his just aquierd used 06.
so I think I will bring along my very nice custom .257 roberts AI-40.
I have exactly 28 rounds loaded for it with 10 rounds each of a 115 grain balistic tip, and 117 grain SST and the last 8 are the bottom of a Box of 110 grain acubonds. The Red whit and blue tips look great in the AI cases.
I have never had a bit of luck getiing that 110 grainer to shoot in I thik 5 rifles I have tried it in.
I know others swerar by it and I really like the acubonds in general.
I hope this Rifle will spit them into a nice tight little group.
FYI, its FN-side safty action, 25 inch light sporter Douglas tube very nicly full length bedded in a richards Micro fit stock.
It has a 4.5 X 14 Nikkon buck master side focus scope on it.
Film at 11.00
...tj3006
For awhile now, its been to overcast for me to use a chrony , After all it winter in oregon and here even the rust gets rusty.
But I saw enough sun today when I got up to give it a try.
Packed up my Kimber .308 and drove over to clark county rifle range in vancouver wa.
I already had a good hunting hunting load with a 150 grain speer hot core over 47 grains of IMR-4064, shootin and avarage of about .80 inches for 3 shot groups.
Today, I had a slightly hotter load with 47.5 grains of the same powder and all else the same.
I will revert back to the 47 grain load as the half grain increase brought my group size up to an avarage of 1.42.
velocity avarage was 2863.
I had another load to try with the same 47 grain charge as I had already had good results with only I toped the winchester case with a 150 grain sierra pro hunter.
The rifle clearly likes the 47 grain chg weight as I got an avarage of 1.02 for 5, 3 shot groups.
Not quite as good as the speer bullet but a difference of .22 at 100 yards off sandbags , is as likly the shooter as the componants. (at least if the shooter is me) velocity avg, was 2852.
Gotta love that.
So now I will be equaly happy with either bullet for deer hunting.
And I take a little joy in knowing my load will be as fast as most factory 06 loads with the same weight bullet.
I also tried a load with 47 of IMR-4064 and the CT-coated fail safe.
I had my only called flyer of the day with this load only leaving me 8 to test.
velocity was at 2747, stll good enough, I bet the coating was the reason for the 100 FPS drop ?
And a 3 shot group was 1.45 and a 5 shot group was 1.67.
Not a great shooter, But I bet a little experimentation would tighten things up, and This bullet would be a dandy for a black bear load from a stand.
The last load I tried was with Hornadys 150 grain SST. The newest hornady book lists a max of 44.9 grains. (quite a bit less than anybody else) I did one of the things we are suposed to never do and started there.
I only loaded 3 just as a safty test and 1 at 46 grs.
The grouped into about 1.4 and gave no obvious sighns of presure.
When you consider this rifle with the 2.5X8 Ziess conquest weighs about 6 LBs.
I am completly satisfied with the results so far.
Any load that avarages an inch for 3 shots at 100 yards is plenty good enough for this deer hunter.
Tommorow,
i am suposed to help a buddie with his just aquierd used 06.
so I think I will bring along my very nice custom .257 roberts AI-40.
I have exactly 28 rounds loaded for it with 10 rounds each of a 115 grain balistic tip, and 117 grain SST and the last 8 are the bottom of a Box of 110 grain acubonds. The Red whit and blue tips look great in the AI cases.
I have never had a bit of luck getiing that 110 grainer to shoot in I thik 5 rifles I have tried it in.
I know others swerar by it and I really like the acubonds in general.
I hope this Rifle will spit them into a nice tight little group.
FYI, its FN-side safty action, 25 inch light sporter Douglas tube very nicly full length bedded in a richards Micro fit stock.
It has a 4.5 X 14 Nikkon buck master side focus scope on it.
Film at 11.00
...tj3006
