My rifle shoots 1/2" groups.... too bad I don't... Yet...
- Thread starter Daver_II
- Start date
Exactly. Once you are sighted in, if you want to see how tight your groups are, adjust the sight a few clicks. That way you can keep aiming at a small point that never gets torn up/enlarged by the bullet impact. Your bullets will land a few inches away, but should land around the same spot every time. You will see this with most of the targets in those "my rifle shoots..." Threads. The guys shoot great groups and someone comments and says that they "missed the target". They actually didn't, they just had their point of impact beside/above/below the dot so that the point of aim doesn't get messed up.
I think I've found a load that will get me on the success list.
44.9gr varget, 175smk, Federal match brass and primers set to 2.800"oal.
5round group 100m 0.380", I only loaded up 5rounds with that charge but boy is it ever going to get a second look, and test of 50 rounds. Hopefully my testing gets me on the list?
Rifle specs:
Remington 700 5r 308win factory action/barrel 24" 1in11 1/4" twist.
Timney 510 trigger, cadex field strike chassis, harris sbrm bipod, rear bag (jsa tactical).
Then optics s&b pmii 5-25 p4l fine reticle sitting in a spuhr isms.
How I was shooting.
44.9gr varget, 175smk, Federal match brass and primers set to 2.800"oal.
5round group 100m 0.380", I only loaded up 5rounds with that charge but boy is it ever going to get a second look, and test of 50 rounds. Hopefully my testing gets me on the list?
Rifle specs:
Remington 700 5r 308win factory action/barrel 24" 1in11 1/4" twist.
Timney 510 trigger, cadex field strike chassis, harris sbrm bipod, rear bag (jsa tactical).
Then optics s&b pmii 5-25 p4l fine reticle sitting in a spuhr isms.
How I was shooting.
I think I've found a load that will get me on the success list.
44.9gr varget, 175smk, Federal match brass and primers set to 2.800"oal.
5round group 100m 0.380", I only loaded up 5rounds with that charge but boy is it ever going to get a second look, and test of 50 rounds. Hopefully my testing gets me on the list?
Rifle specs:
Remington 700 5r 308win factory action/barrel 24" 1in11 1/4" twist.
Timney 510 trigger, cadex field strike chassis, harris sbrm bipod, rear bag (jsa tactical).
Then optics s&b pmii 5-25 p4l fine reticle sitting in a spuhr isms.
How I was shooting.
Do you know the muzzle velocity with those rounds? I am getting good accuracy with about 43.5g Varget in Federal cases. About 2600 FPS.
No idea, however at 43.5gr varget under 175smk in a federal case out of a 24" barrel I guesstimate 2650 fps(online, same rifle, barrel and load)drop chart said 13 clicks (1/4moa per). It was about 1.5" low(300yards), shot again at 11 and it was dead on. I rejigged the calculator and it said around 2900 fps to meet the same drop.
I don't see how that could be possible, so a chrono is on my buy list. I did see some pressure signs on 44.9 gr, the pin hole went from semi circle to cratering and starting to flatten out. I'll post pics later if you'd like.
I don't see how that could be possible, so a chrono is on my buy list. I did see some pressure signs on 44.9 gr, the pin hole went from semi circle to cratering and starting to flatten out. I'll post pics later if you'd like.
Well I tried again today, Getting better.
I will try a lead sled to see how much is shooter error, and how much is the gun.
I am betting most of the issues are shooter based.
(Bottom group is not included)
Rifle: Remington 700 LTR in Cadex strike 30 chassis.
Scope: Vortex Viper PST 6x-24x FFP
Ammo: 168 gr Norma Match
Rest: Harris bipod and rear beanbag
Range: 100Y
Groups: 5 rounds
Math to determine MOA if over 100y range: Calipers were set to .308, zeroed, and measured outside of black to outside of black.
Group 1 = .640"
Group 2 = .426"
Group 3 = .359"
Group 4 = .744"
Group 5 = .580"
Avg = .580"
Pic of rifle: Same as first post... forgot to take another today.
Pic of full target:
Pic of best group:
Hey Daver, good shooting. one thing I noticed on your picture with a best group of. 359 you measuring it to outside of bullet holes and in this case you have to deduct your calibre.
If that's the case you have a to recalculate your groups.
Regards.
I already posted this in the 0.75" challenge just to show my progress but here it is again:
Today I tried, and failed at, this challenge.
I am not a great shot and newer at reloading so I don't know which is holding me back the most.
Anyways I wasn't sure what was meant by setup so here is my rifle and shooting range:
Rifle is a .308 Accuracy International AE MKIII with a Vortex PST 6-24x FFP scope and an Atlas bipod and a Tab Gear rear bag. Goes well with the purple carpet I rest it on.
Anyways here is my attempt:
I didn't convert to MOA or show the calipers as I failed the challenge. Range was 93 meters or 101 yards according to my rangefinder when used from my firing position.
I was shooting 178 Amax bullets in Federal cases with Federal 210M primers. Length is 2.84". I tried both 43.5gr and 44gr of Varget as I wasn't sure which was my best as previous testing was inconclusive.
I think my first big group is because either I wasn't loading the bipod or pulling the rifle into my shoulder consistently. That was my second shot.
My second last shot I'm pretty sure I pulled. The rifle fired before I was expecting it because of sloppy trigger control. Oh well. It was fun and I may try it again.
*Edited to add*
Sorry about the awful pictures. It's my first time using Photobucket and I don't know why they are so low resolution.
Today I tried, and failed at, this challenge.
I am not a great shot and newer at reloading so I don't know which is holding me back the most.
Anyways I wasn't sure what was meant by setup so here is my rifle and shooting range:
Rifle is a .308 Accuracy International AE MKIII with a Vortex PST 6-24x FFP scope and an Atlas bipod and a Tab Gear rear bag. Goes well with the purple carpet I rest it on.
Anyways here is my attempt:
I didn't convert to MOA or show the calipers as I failed the challenge. Range was 93 meters or 101 yards according to my rangefinder when used from my firing position.
I was shooting 178 Amax bullets in Federal cases with Federal 210M primers. Length is 2.84". I tried both 43.5gr and 44gr of Varget as I wasn't sure which was my best as previous testing was inconclusive.
I think my first big group is because either I wasn't loading the bipod or pulling the rifle into my shoulder consistently. That was my second shot.
My second last shot I'm pretty sure I pulled. The rifle fired before I was expecting it because of sloppy trigger control. Oh well. It was fun and I may try it again.
*Edited to add*
Sorry about the awful pictures. It's my first time using Photobucket and I don't know why they are so low resolution.
Hmmm, okay. I was going to switch to 44.0gr as I thought it might be a bit better. See my targrt a few posts up.
I can not even express how frustrating it is to try a load, think it's good, then think another one may be better, then read online about what other people are doing and second guess myself again.
To top it all off I can't shoot, or even handload, well enough to determine if I am causing the problem.
Might I suggest doing a ladder test then a OCW with your gun & reloads. And don't chase what other people are doing on the internet, do your own thing & let the gun tell you what it like's. And after you complete your OCW test then play with your seating depth's. After you have your magic load for your gun, then start shooting for little bitty group's. And yes that 43.5gr to 44gr load looks pretty decent, maybe play with your seating depth a little & practise lot's.
Just a couple little suggestion's that's all.
Cheers
I almost passed the 1/2 moa, 300 yard challenge by accident the other day while doing my first load development target for a 6xc from Insite arms !
Each group is a .3 grain jump of varget, starting from the top left. That's a spread of 36.3 grains to 37.8 grains.
The rifle in question, don't know what kind of magic they're putting in these things at Insite, but it's impressive. My aI aw, atrs custom, trg and my buddies gap didn't/don't shoot like this... The test target it came with was 7 rounds in one caliber sized hole.
With some time spent doing some detailed load development, I expect some outstanding results. Never had a rifle shoot this good right out of the box, custom or otherwise.
6xc
26" krieger
Surgeon action
Huber two stage
Ai ax 2015 chassis
Insite's tlc
Each group is a .3 grain jump of varget, starting from the top left. That's a spread of 36.3 grains to 37.8 grains.
The rifle in question, don't know what kind of magic they're putting in these things at Insite, but it's impressive. My aI aw, atrs custom, trg and my buddies gap didn't/don't shoot like this... The test target it came with was 7 rounds in one caliber sized hole.
With some time spent doing some detailed load development, I expect some outstanding results. Never had a rifle shoot this good right out of the box, custom or otherwise.
6xc
26" krieger
Surgeon action
Huber two stage
Ai ax 2015 chassis
Insite's tlc
I almost passed the 1/2 moa, 300 yard challenge by accident the other day while doing my first load development target for a 6xc from Insite arms !
Each group is a .3 grain jump of varget, starting from the top left. That's a spread of 36.3 grains to 37.8 grains.
The rifle in question, don't know what kind of magic they're putting in these things at Insite, but it's impressive. My aI aw, atrs custom, trg and my buddies gap didn't/don't shoot like this... The test target it came with was 7 rounds in one caliber sized hole.
With some time spent doing some detailed load development, I expect some outstanding results. Never had a rifle shoot this good right out of the box, custom or otherwise.
6xc
26" krieger
Surgeon action
Huber two stage
Ai ax 2015 chassis
Insite's tlc
That is a nice looking setup
So I sold the rifle in Post #1, and bought a new toy.... One guaranteed to be a 1/2" gun.... Too bad I am not yet.... but getting better...
I zero'd with 5 rounds, and then fired another 45 rounds to form my 9 groups. Here is the result.
Rifle: DTA SRS A1 .308 22" barrel.
Scope: Vortex Viper PST 6-24x FFP
Ammo: 168 gr Norma
Rest: Atlas and rear bag/rear mono-pod
Range: 100Y
Math to determine MOA if over 100y range: N/A
Conditions: Beautiful day, with moderate wind gust from shooter's 7-o-clock position.
Group 1 = .663"
Group 2 = .538"
Group 3 = .650"
Group 4 = .425"
Group 5 = .807"
Group 6 = .902" (.300" for 4 of the rounds)
Group 7 = .684"
Group 8 = .796" (.367" for 4 on this one too)
Group 9 = .585"
Avg = .672"
Pic of rifle:
Pic of full target:
I zero'd with 5 rounds, and then fired another 45 rounds to form my 9 groups. Here is the result.
Rifle: DTA SRS A1 .308 22" barrel.
Scope: Vortex Viper PST 6-24x FFP
Ammo: 168 gr Norma
Rest: Atlas and rear bag/rear mono-pod
Range: 100Y
Math to determine MOA if over 100y range: N/A
Conditions: Beautiful day, with moderate wind gust from shooter's 7-o-clock position.
Group 1 = .663"
Group 2 = .538"
Group 3 = .650"
Group 4 = .425"
Group 5 = .807"
Group 6 = .902" (.300" for 4 of the rounds)
Group 7 = .684"
Group 8 = .796" (.367" for 4 on this one too)
Group 9 = .585"
Avg = .672"
Pic of rifle:
Pic of full target:
Just a couple holes away from makin' it......nice shooting!
How do you like the Desert Tech?
How do you like the Desert Tech?
So I sold the rifle in Post #1, and bought a new toy.... One guaranteed to be a 1/2" gun.... Too bad I am not yet.... but getting better...
I zero'd with 5 rounds, and then fired another 45 rounds to form my 9 groups. Here is the result.
Rifle: DTA SRS A1 .308 22" barrel.
Scope: Vortex Viper PST 6-24x FFP
Ammo: 168 gr Norma
Rest: Atlas and rear bag/rear mono-pod
Range: 100Y
Math to determine MOA if over 100y range: N/A
Conditions: Beautiful day, with moderate wind gust from shooter's 7-o-clock position.
Group 1 = .663"
Group 2 = .538"
Group 3 = .650"
Group 4 = .425"
Group 5 = .807"
Group 6 = .902" (.300" for 4 of the rounds)
Group 7 = .684"
Group 8 = .796" (.367" for 4 on this one too)
Group 9 = .585"
Avg = .672"
Pic of rifle:
Pic of full target:
Love the DT, I have no issue doing three round groups... but 4 and 5 are always expanding.
I tried again today, but the wind was very gusty, and 90 deg right to left.
Getting better...
This was off another target, and was my best group of the day.
I tried again today, but the wind was very gusty, and 90 deg right to left.
Getting better...
This was off another target, and was my best group of the day.
