6BRA second go

[comagutsa]

Thought I'd put this up.. While running in barrel I had made some load test rounds with 107gr match Kings that I never used with my 1st barrel so I'd thought I'd use them to run in the new barrel.. There was only about 30 rounds on barrel when I did this at 100m . That top let group was my 1st 5 shot group (shots 6 to 11)
You can see the usual nodes haha.

 

[boltfluter]

Just wondering if your barrel does not like the Copper heads. Might be time to try another bullet.

Paul

 

[KenOath]

Just wondering if your barrel does not like the Copper heads. Might be time to try another bullet.

Paul

Hopefully he sells em cheap to me.....

 

[comagutsa]

Just wondering if your barrel does not like the Copper heads. Might be time to try another bullet.

Paul

haha nah i think its going ok with them and i cant let rusty have them, cant give him an advantage to beat me haha

 

[Nature Boy]

I have 200 Sierra 107s that I haven't tried. Now you make me want to. It looks like a very wide node between 30.9 - 31.3

These were shot with formed brass I assume?

 

[comagutsa]

yep

 

[mikeeg02]

I have 200 Sierra 107s that I haven't tried. Now you make me want to. It looks like a very wide node between 30.9 - 31.3

These were shot with formed brass I assume?

Dont forget, the previous groupings were at 200m, and the one showing groups from 107s were only at 100m. Not saying they dont/wont work, because I had a barrel that liked them too. Just making sure you caught that detail.

 

[Willow]

Hopefully he sells em cheap to me.....

Couldn't get the Copperheads working in my barrel unfortunately - jumped them, jammed them...didn't matter even though the Labradar data had single digit ES and SD, all groups on paper were lousy. Since I've run out of Berger 108s, I've managed to get a good supply of Scenar L's and they're looking alright thankfully.

 

[KenOath]

Couldn't get the Copperheads working in my barrel unfortunately - jumped them, jammed them...didn't matter even though the Labradar data had single digit ES and SD, all groups on paper were lousy. Since I've run out of Berger 108s, I've managed to get a good supply of Scenar L's and they're looking alright thankfully.

I’ve got as far as the first powder charge test on this barrel with the Copperheads, so far there showing promise at 200m...more testing to do.

 

[Ccrider]

Is it a hole or just an imperfection in the brass?

Definitely a hole in the shoulder. Not a mark.

 

[Nature Boy]

Definitely a hole in the shoulder. Not a mark.

Dang, that ain’t good

 

[comagutsa]

Just an update I used 003 neck tension for this test and finally got to 400m as wind was great . But got a slight mirage in on the 30.3 to 30.5gr test but it was going up and wasn't flat
over all 29.7gr and 29.8gr were average as but 29.9gr again was awesome ( the low one was me as I hit the trigger when I wasn't set up correctly .. I will use 29.9gr tomorrow in a shoot but I have loaded up 1 relay with 30gr to see what it does. Hopefully the node will be slightly bigger

 

[mikeeg02]

29.9 sure looks like its shining still. Nice shooting and good luck at your match.

 

[comagutsa]

Update coz I can haha
Well 29.9gr of 2206H/H4895 and 103gr copperheads were crap at 500m.. Had about 2 inch vert.. Tried 30gr in perfect conditions and had about 4inch of vert. Just wasn't happy at all
So I tried benchmark 8208/IMR 8208 XBR and shot at 200m with 005 jam

The mirage and wind came in on last group. so I am going to test 30.9gr and do seating again
But I thought bugger it I will try 2208/varget as it was in my head
The mirage and wind was in (coming from behind flicking left and right) Had scope on 30 power coz of mirage and just picked constant conditions and rattled down on groups
I went from 31gr to 31.8gr in 0.1gr increments and trust me to not load 31.9 and 32gr Again 200m and 103gr jammed 005. Speeds were 31.7gr 2960fps ES 6 SD 3.5. and 31.8gr 2975 ES 12 SD 6.

So I'm going to test both a bit more and see what happens
If these turn out no good I will try 107gr serrias MK as we can't get 6mm bergers here because berger are that far behind on orders for Australia it's not funny.. Like over 12months and the supply is a trickle from berger.. Not happy

 

[Curious]

If you shoot mainly at 500 and can also test at that range have you tried doing the ladder testing method at 500?

 

[comagutsa]

If you shoot mainly at 500 and can also test at that range have you tried doing the ladder testing method at 500?

yes i can but no i haven't , i have tried a couple of ladders at 400 and 500m before on other barrels and i just seem to get lost in test results so that's why i end up shooting groups haha
but i might give it another go and use these results to narrow it down

 

[DBLNUT]

Update coz I can haha
Well 29.9gr of 2206H/H4895 and 103gr copperheads were crap at 500m.. Had about 2 inch vert.. Tried 30gr in perfect conditions and had about 4inch of vert. Just wasn't happy at all
So I tried benchmark 8208/IMR 8208 XBR and shot at 200m with 005 jam
View attachment 1067128
The mirage and wind came in on last group. so I am going to test 30.9gr and do seating again
But I thought bugger it I will try 2208/varget as it was in my head
The mirage and wind was in (coming from behind flicking left and right) Had scope on 30 power coz of mirage and just picked constant conditions and rattled down on groups
I went from 31gr to 31.8gr in 0.1gr increments and trust me to not load 31.9 and 32gr Again 200m and 103gr jammed 005. Speeds were 31.7gr 2960fps ES 6 SD 3.5. and 31.8gr 2975 ES 12 SD 6.
View attachment 1067129
So I'm going to test both a bit more and see what happens
If these turn out no good I will try 107gr serrias MK as we can't get 6mm bergers here because berger are that far behind on orders for Australia it's not funny.. Like over 12months and the supply is a trickle from berger.. Not happy

My BRA never would do well with H4895. 31.6-31.8 of Varget and a 103 VT jammed .004 is where it all came together.

 

[BradY]

Dammit stu how many times have I told you to not force barrels to shoot what they dont want! Haha go get some 107 sierras and feed it mate. I still have my reamer sitting here not used. Really dont know if I can be bothered to be honest

 

[mikeeg02]

What did your 500m group look like ? Are you positive it wasnt a condition thing?

Last weekend at williamsport when I was in the pitts I watched everyone sight in, and when they called for record string they almost all shot 6"+ low, and had had a bunch of vertical. From shooters that normally dont. Conditions can and will get you at distance.

 

[comagutsa]

Dammit stu how many times have I told you to not force barrels to shoot what they dont want! Haha go get some 107 sierras and feed it mate. I still have my reamer sitting here not used. Really dont know if I can be bothered to be honest

haha mate they are next don't you worry, just a few things to try 1st ..you know me have to try everything haha