Long range load development at 100 yards.

[BradY]

Erik

I shot 31.6gr at 600 meters this morning. It was about half the X ring in vertical and just peppered the x ring with shots only lost due to pickups in wind. Another good shooter here shot it as well and kept all but the last one in the X ring. I think load development might be finished at 31.6gr and 50" jump.

 

[savageshooter86]

Just out of curiosity, why jumping them so much initially sorting load work up?

Did you test different seating depths then do powder charge?

 

[BradY]

Just from reading about shooting the fat hybrids in a 236 bore dasher with a freebore shorter than 150 thou. Im sure there could be another sweet spot somewhere but for now theres no reason why it needs to change.

 

[rmist]

Any ideas on my target?? I have off tomorrow and would like to shoot again and load today. I was leaning towards 30.4-30.6 grs. From reading all of this I think it would be a wrong pick of 29.7 even though it's a nice round hole. Thoughts ??
Thanx again

 

[savageshooter86]

Possibly split the top right two targets, not sure what charges those would be.

Seems you should be able to go higher, most 105 hybrids are running 30.0 to 30.5gr.

 

[rmist]

Top row... 29.0, 29.5, 29.7, 30.0
Second row...30.2, 30.4, 30.6

29.7 is the round hole
These are 95gr VLD's

 

[savageshooter86]

If that shot out on the 30.4 load was shooter or wind induced, that charge and 30.6 seem to have very similar POI vertically on the target.

Maybe someone else will give help here. But I would go with either 29.8 or 30.5gr

 

[Erik Cortina]

BY1983, I would do the test anyway, who knows, you might find an even better load, if now, you can always load what you have. Either way, sounds like you found a good load.

 

[Erik Cortina]

Rmist, I would go with the one in the middle of the bottom row. Second one from the left.

 

[rmist]

Thankyou...I had hoped that was the right one I had thought of. Really learning here...Thanx again.
Rmist

 

[Kyboy]

What do you thank Erik was Shoot today out my 6xc. Powder used was H4350, Norma 6xc brass, BR2 primers and 105 Hybrids out of a 26" barrel. Temps were 65 DEG..

I would also like to thank Erik for his contributions to this thread and the shooting community.

 

[BradY]

BY1983, I would do the test anyway, who knows, you might find an even better load, if now, you can always load what you have. Either way, sounds like you found a good load.

Not a problem- I will do, though will probably build another rifle up and get this barrel put onto that action first. At the moment each time I want to change between varminting and f class Im changing barrels and scopes on this action and its driving me nuts. Plus the trigger is woeful. Im sure a HVR or a kelbly competition trigger on this remington would help tighten up the groups again too. There definitely something to be said about keeping varmint rifles for varminting and competition rifles for range use.

 

[Erik Cortina]

Kyboy, I really wish I could see some chronograph numbers. The small group appears to be in a good node, but groups beside it are not nearly as good. Chronograph numbers would make it easier to decipher.

 

[edwin_velocity]

ES looks good.

I would advise that you FL size every time to achieve consistency.

FL with correct neck bushing though correct? ie redding type s full length die with neck bushing? .002-.003 neck tension?

Yes. .002" neck tension is what I use.

Hi Erik,

Regarding the neck tension, how deep you neck sized it? is it entire neck?

Thank you

 

[Erik Cortina]

I make my own dies, they are one piece so they resize the entire neck.

With bushing dies, I resize only 3/4 of the neck.

 

[edwin_velocity]

thanks Erik!

 

[lawrence97]

Erik, what are your opinions on this seating depth test?

 

[308 f/tr]

Here is my target each 5 shot group is 1/2 grain apart so it is a pretty large spread. From my point of view I think 5 is probably one to do a jump test on but 8 may be also. What do you think?

Aaron

 

[Raythemanroe]

2-3 were is the velocity fps?

 

[trailrider121]

308 f/tr,

Can you post charges also? Looks like 2&3 like ray mentioned.