Single digit ES,

[magnatecman]

I have been working on this load development for a while now. I ran a ladder test and decided to try 47.3 grains, the flat spot you see in the graph. I loaded two sets of 5 rounds at this charge, one at a.010" longer oal than the first. I was amazed when I looked at the numbers on the chrono. Out of 5 shots 3 were at 2824 fps and the other two were 2818 fps. ES of only 6 fps!

I've been loading for about ten years now and this is a first for me, I'm pretty excited about it.
Almost forgot,
7mm-08 in a compact CVA Scout 20" barrel
Ramshot Big Game
Sierra Pro Hunter 140 grain

 

[1KPerDay]

Cool. How accurate are they?

 

[someguy2800]

Strangely enough the only gun I’ve ever had repeatable single digit extreame spreads with is my 444 marlin with hard cast.

 

[murf]

Cool. How accurate are they?

i'm curious as well.

murf

 

[Varminterror]

Nice results! What are you using to weigh charges for your ladder? And which chronograph? And of course as the others asked - the million dollar question - how was the group size?

 

[magnatecman]

Cool. How accurate are they?

Not that great to be honest. 3/5 went into about 1/2" but then the other two opened up the group to 1 1/4" or so I didn't bother to measure. I'm using a 2x7 scope, and I was struggling with my home made sand bags and Herter's shooting table to feel comfortable and steady, so I blame these things for most of it. But then I did just have to go get glasses recently too and didn't have them with me.

This load does show a lot of promise though if I can do my part behind the trigger.

 

[magnatecman]

Nice results! What are you using to weigh charges for your ladder? And which chronograph? And of course as the others asked - the million dollar question - how was the group size?

I'm using an RCBS Range Master 750 electronic scale, I hand trickle the last .3 grains for consistency. My chrono is a Competition Electronics ProChrono Digital.

 

[hdwhit]

Impressive!

 

[Dudedog]

Always nice when things work out well.

 

[murf]

Not that great to be honest. 3/5 went into about 1/2" but then the other two opened up the group to 1 1/4" or so I didn't bother to measure. I'm using a 2x7 scope, and I was struggling with my home made sand bags and Herter's shooting table to feel comfortable and steady, so I blame these things for most of it. But then I did just have to go get glasses recently too and didn't have them with me.

This load does show a lot of promise though if I can do my part behind the trigger.

i'm guessing the rifle, not the nut behind the trigger. break-open rifles are not very consistent right out of the box. i have a handi rifle in .223 rem that shot 1.5 moa out of the box. i worked on a few things and now, with the right load, is a consistent .75 moa shooter.

don't get down on yourself until you let another good shot shoot that rifle.

luck,

murf

 

[Nature Boy]

don't get down on yourself until you let another good shot shoot that rifle.

Or a more stable platform