My rifle shoots 1/2" groups @100 yards all day! Really? Prove it.

As many rifles with as many attempts as your wallet can take. Just 5x5 with same rifle.
Success list is dominated by small caliber BR rifles. Just several 308s in the custom/Coyote class $$$
Is that 600m in Campbell river by chance?

I gotta try this... Not sure if I can even remotely get close to 1/2 MOA, but yeah.... Cant know if you dont try... I have three rifles that I'd like to make the attempt with... is it permissible to go with all three or do I need to pick only one?
...
 
Success list is dominated by small caliber BR rifles. Just several 308s in the custom/Coyote class $$$

I noticed that.... not many 308's All the more of a challenge....

Were you in Bby when the ranges were open on the Barnet Hwy? I cannot recall if the Barnet Rifle Range had a 200 or 300 yd. pin... That place used to tease me all the time... But I didn't have the firepower back then.. Now its a friggen bike park... smh.

I have to try this challenge.. I'll start my attempts shortly. Never forgive myself if I dont..
I read it was permissible to post failures siimply for curiosities sake? yeah?
 
Wish it was that linear. Done many one hole three shot groups and many <1/2MOA 5 shot but have yet to do 5x5. Best was ~23, flinch on 2 shots to pull just >1/2. Consistency over 25 shots is capital B!TCH

I think I have a target that qualifys. I would like to find some one arround here to measure it as well to confirm my measurements or to tell me I didn't make it. And then to figure a way to post it.
 
I don't qualify with this target but am I on the right track ? 3 shot groups as I had limited ammo today and it was gusty

100 yards - Group sizes - Top Left .315 Top Right .332 Bot Left .354 Bot Right .219



 
Simplest is to so as suggest in the OP "Measure the extreme outside spread of your group and then subtract the bullet diameter" place a caliper on extreme os spread, snap picture. Group size for .308 is measurement - .308
I think I have a target that qualifys. I would like to find some one arround here to measure it as well to confirm my measurements or to tell me I didn't make it. And then to figure a way to post it.
 
Bullets often cut a smaller hole depending on target material... for a more accurate group measurement the first thing is to measure one hole... write that measurement on the target for reference... then measure the group and subtract the reference mesasurment... that is the way we did it in Centerfire Benchrest before we had a proper tool...
 
What is the proper tools? Is it take a pic, pop into software like OnTarget Precision Calculator
OnTargetScreen1.jpg

Bullets often cut a smaller hole depending on target material... for a more accurate group measurement the first thing is to measure one hole... write that measurement on the target for reference... then measure the group and subtract the reference mesasurment... that is the way we did it in Centerfire Benchrest before we had a proper tool...
 
Did you understand guntech's post. If not read it again, the point is a simple vernier caliper is not good enough for BR targets. A micrometer would make it even worst.

I did, I offered a much cheaper alternative to someone who wants to just try it out. It works perfectly fine for this challenge.
 
I hope I did my calculation correctly. I measured tonthe outside edge of the two furthest shots and then subtracted my bullet diameter from it. Was just at silverdale today doing my ladder test and got this group.

Remington 700 SPS Tactical .308WIN
Timney two stage trigger
Vortex Crossfire II 6-24x50
MDT HS3
MDT skeleton stock v4
CoreTac Solutions clamp-on brake

The load was Hornady Match 168gr BTHP, 41.6gr Varget, Winchester brass and CCI LR primer.

EDIT: oops. i just realized that i need five 5-shot groups. i guess i will have to try this again later this year. lol

xnzsc2.jpg


scyq0k.jpg
 
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Hey there Chinese Guy,
interesting numbering on your loads. Any particular reasoning for the way you have your tenths organized?

Nice looking rifle too btw. I am considering the MDT setup for my savage 10FPC.

Good shooting.. Looks like a satisfying day out at the range.
 
Hey there Chinese Guy,
interesting numbering on your loads. Any particular reasoning for the way you have your tenths organized?

Nice looking rifle too btw. I am considering the MDT setup for my savage 10FPC.

Good shooting.. Looks like a satisfying day out at the range.

always load in .2 or .3 steps and shoot over a crony, when your ES and SD drop into single digits then it's time to learn how to read the wind
 
Finally got to the range yest. after more than 6 weeks wait for the road/parking lot to defrost from sheet of ice to muddy potholes. YES, Vancouver does get snow once a decade.

Took a gamble, sighted in at 100m, luckily took only two shots. Did several 5 shot groups from min powder, then .5gn increment. Post is the last group using OnTarget Precision Calculator, nice free software, hopefully got it set up correctly.

Just one group, very happy with it. Time to start load development, then off to try this challenge which the rifle seems capable of, not sure about the shooter.

DT SRS-A1 260Rem



 
Hey there Chinese Guy,
interesting numbering on your loads. Any particular reasoning for the way you have your tenths organized?

Nice looking rifle too btw. I am considering the MDT setup for my savage 10FPC.

Good shooting.. Looks like a satisfying day out at the range.

the numbering was because the hornady book said max load was 44.0gr so i did decremental weights by 0.3 from there (44.0, 43.7, 43.4, 43.1, etc.)

satisfying would hardly describe it. i was so cold with the wind that i was shivering while shooting which threw off quite a few of my shots. im going to do another smaller ladder test from 41.0-44.0gr when it gets warmer. it was the first time where i was glad to leave the range. lol
 
the numbering was because the hornady book said max load was 44.0gr so i did decremental weights by 0.3 from there (44.0, 43.7, 43.4, 43.1, etc.)

satisfying would hardly describe it. i was so cold with the wind that i was shivering while shooting which threw off quite a few of my shots. im going to do another smaller ladder test from 41.0-44.0gr when it gets warmer. it was the first time where i was glad to leave the range. lol

Haha... c c c c oooldddd....

It was like that here last week.. soon as the sun went behind the hills it dropped to sub zero temps. I dont mind the cold so long as Ive got good shoes and good gloves, but last week was about as much fun as your trip sounds like. Looking forward to see what you and your rifle can do when youre warn and cozy!




Finally got to the range yest. after more than 6 weeks wait for the road/parking lot to defrost from sheet of ice to muddy potholes. YES, Vancouver does get snow once a decade.

Took a gamble, sighted in at 100m, luckily took only two shots. Did several 5 shot groups from min powder, then .5gn increment. Post is the last group using OnTarget Precision Calculator, nice free software, hopefully got it set up correctly.

Just one group, very happy with it. Time to start load development, then off to try this challenge which the rifle seems capable of, not sure about the shooter.

DT SRS-A1 260Rem


That theres some nice shootin' Tex.. What range did you go to? Mission or Coquitlam?
Im still gotta get my sorry butt out there.. I want to see if I can get my lakefiled to do this.. then the 223 and then the 308.

lots of fun coming up.. hopefully!
 
POCO. Nice several yr old wooden shooting benches. Heated covered shooting area. Hot water in the washroom. Kitchen with kettle, stove, coffee maker, bottled water. Target backstops. Just bring your firearm, paper targets and stapler.

Sounds like paradise compared to conditions described by outdoor shooters in other areas.
Haha... c c c c oooldddd....

It was like that here last week.. soon as the sun went behind the hills it dropped to sub zero temps. I dont mind the cold so long as Ive got good shoes and good gloves, but last week was about as much fun as your trip sounds like. Looking forward to see what you and your rifle can do when youre warn and cozy!

...

That theres some nice shootin' Tex.. What range did you go to? Mission or Coquitlam?
Im still gotta get my sorry butt out there.. I want to see if I can get my lakefiled to do this.. then the 223 and then the 308.

lots of fun coming up.. hopefully!
 
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