bullet
Handloader
- Dec 26, 2007
- 4,975
- 18
First Range Report
Here is where I am at the moment.
Jerry and I had a ball today shooting. He was working with his 338Win Mag Vanguard and I was working with my 340Wby. Much more has been done outside of what I am going to post today. My focus at the moment is on the 250gr bullets. I have tested 200gr SST and they average 3204fps and are 9/8" -1 1/2" in group size. I have tried 210gr Partitons and 215gr SBT but accuracy is not what I want but velocities were there.
Now, my rifle is a fast rifle, when compared to Weatherby factory balllistics shooting Weatherby ammo which list the 250gr Partition moving 2941fps and my rifle with this ammo recorded and average of 2990fps.
It is shooting Accubonds and Partitions very well but not settled on a load yet, lots of work to still do. Will also be testing the 250gr SBT.
Here are the results of the two best AccuBond loads form my work so far.
Group size is .657" moving at 2913fps
Group size is .910" moving at 2917fps
Here is the result of the Weatherby Factory ammo 250gr Partition
Three shot Group size is .437" moving at 2990fps
Five shot Group size is .727" moving at 2990fps
Second Range Report
I have now a couple of hunting rounds for big game with my 340Wby. I will use the Weahterby Factory Ammo 250gr Partition for dangerous game and my hand load using the Sierra 250gr SBT for all other big game.
The Factory ammo I have already posted the accuracy and the results on my first range report with a five shot group 7/10" and moving at 2990.
The next load is the 250gr Sierra SBT moving at 3020fps and group size is .558", using Weatherby brass, Rem 9 1/2M primers, with IMR7828
First here is pictures of the brass
Group size was .558"
Velocity average was 3020fps
Third Ranbge Report
Today was an interesting day as I tried the Fed 215 and Rem 9 1/2M primers in my 340Wby using 250gr AccuBond and 250gr Sierra SBT for velocity and accuracy while using IMR7828 and H4350. Also Rem 9 1/2L and Fed 210 primers with TAC and AA2495BR in my 358Win.
I decide to load below max a good bit to see how my 340Wby would respond in accuracy.
In the 340Wby the Rem 9 1/2M primers out performed the Fed 215 primers in accuracy and tied the Fed 215 primers in velocity. Average velocity of both primers in equal number of rounds fired with H4350 and IMR7828 was 2887fps. Rem 9 1/2M had best group and that was with the 250gr AccuBond.
In my 358Win using TAC and AA2495BR the Rem 9 1/2M out performed the Fed 215 in velocity and accuracy, while the Fed 210 primer out performed the Rem 9 1/2L in accuracy but not velocity. Average velocity of Rem 9 1/2M was 2535fps and average with the Fed 215 was 2522fps. Fed 210 had the best group and that was with the 225gr Sierra using AA2495BR.
340Wby - 250gr AccuBond using H4350 moving at 2846fps with Rem 9 1/2M primers, goup size was .537"
358Win - 225gr Sierra SBT using AA2495BR moving at 2361fps with 210 Fed primers, group size was .682"
Here is where I am at the moment.
Jerry and I had a ball today shooting. He was working with his 338Win Mag Vanguard and I was working with my 340Wby. Much more has been done outside of what I am going to post today. My focus at the moment is on the 250gr bullets. I have tested 200gr SST and they average 3204fps and are 9/8" -1 1/2" in group size. I have tried 210gr Partitons and 215gr SBT but accuracy is not what I want but velocities were there.
Now, my rifle is a fast rifle, when compared to Weatherby factory balllistics shooting Weatherby ammo which list the 250gr Partition moving 2941fps and my rifle with this ammo recorded and average of 2990fps.
It is shooting Accubonds and Partitions very well but not settled on a load yet, lots of work to still do. Will also be testing the 250gr SBT.
Here are the results of the two best AccuBond loads form my work so far.
Group size is .657" moving at 2913fps
Group size is .910" moving at 2917fps
Here is the result of the Weatherby Factory ammo 250gr Partition
Three shot Group size is .437" moving at 2990fps
Five shot Group size is .727" moving at 2990fps
Second Range Report
I have now a couple of hunting rounds for big game with my 340Wby. I will use the Weahterby Factory Ammo 250gr Partition for dangerous game and my hand load using the Sierra 250gr SBT for all other big game.
The Factory ammo I have already posted the accuracy and the results on my first range report with a five shot group 7/10" and moving at 2990.
The next load is the 250gr Sierra SBT moving at 3020fps and group size is .558", using Weatherby brass, Rem 9 1/2M primers, with IMR7828
First here is pictures of the brass
Group size was .558"
Velocity average was 3020fps
Third Ranbge Report
Today was an interesting day as I tried the Fed 215 and Rem 9 1/2M primers in my 340Wby using 250gr AccuBond and 250gr Sierra SBT for velocity and accuracy while using IMR7828 and H4350. Also Rem 9 1/2L and Fed 210 primers with TAC and AA2495BR in my 358Win.
I decide to load below max a good bit to see how my 340Wby would respond in accuracy.
In the 340Wby the Rem 9 1/2M primers out performed the Fed 215 primers in accuracy and tied the Fed 215 primers in velocity. Average velocity of both primers in equal number of rounds fired with H4350 and IMR7828 was 2887fps. Rem 9 1/2M had best group and that was with the 250gr AccuBond.
In my 358Win using TAC and AA2495BR the Rem 9 1/2M out performed the Fed 215 in velocity and accuracy, while the Fed 210 primer out performed the Rem 9 1/2L in accuracy but not velocity. Average velocity of Rem 9 1/2M was 2535fps and average with the Fed 215 was 2522fps. Fed 210 had the best group and that was with the 225gr Sierra using AA2495BR.
340Wby - 250gr AccuBond using H4350 moving at 2846fps with Rem 9 1/2M primers, goup size was .537"
358Win - 225gr Sierra SBT using AA2495BR moving at 2361fps with 210 Fed primers, group size was .682"