Common sense would dictate that you cut the screw seats at the same time. As they have very little purchase to begin with.
All he need is a few thousands of movementand he has big trouble. IMHO.
Paul
www. boltlfuting.com
I turned my 0.25 moa rifle into a 12 moa rifle - Help!!!!
- Thread starter bubbapug1
- Start date
Common sense would dictate that you cut the screw seats at the same time. As they have very little purchase to begin with.
All he need is a few thousands of movementand he has big trouble. IMHO.
Paul
www. boltlfuting.com
What is common sense ? They don't seem to make it anymore. LarryCommon sense would dictate that you cut the screw seats at the same time. As they have very little purchase to begin with.
and he has big trouble. IMHO.
Paul
www. boltlfuting.com
carlsbad
Lions don't lose sleep over the opinions of sheep.
Common sense would dictate that you cut the screw seats at the same time. As they have very little purchase to begin with.
and he has big trouble. IMHO.
Paul
www. boltlfuting.com
That's whey we have engineers to get beyond things that sound good. Check the bottoms of the screws and you'll be lucky to find one that is that flat. --jerry
Riesel
Gold $$ Contributor
12 MOA movement at 100 yards is a bunch, much more than some some screw head not quite being at the same angle as the scope rail.
Something catastrophic has happened and it's probably rather obvious. Take a deep breath, regain your composure and look at each part of this
objectively.
Something catastrophic has happened and it's probably rather obvious. Take a deep breath, regain your composure and look at each part of this
objectively.
Thanks for all the good info folks. I spoke with Gary too. He was a great help. I'm going to opt for bedding with JB weld. By matching the base I opened it up to some slop in the mounting slot. While it seems tight, there is actually some space with the screws heads for movement in the horizontal plane. I just don't get how it could move enough for 12" of vertical at 100 yards with two different scopes but there is no other explanation.
I'll post results next week. I'm going to sacrifice two goats and a chicken before I bed it just for good luck.
I'll post results next week. I'm going to sacrifice two goats and a chicken before I bed it just for good luck.
nmkid
Gold $$ Contributor
I know what it feels like to have gun problems but, I can't resist. I was explaining something to my grandson and told him, "it only takes common sense". He said, "grandpa, they haven't taught us that in school yet"!!! I turned my head so he couldn't see me smiling. True story.
Not funny but is the truth . Larry
I never have seen a gun shoot that bad. Without something being loose .
Larry
carlsbad
Lions don't lose sleep over the opinions of sheep.
12" of vertical is 12 moa or 1/5 of a degree. The tangent of .2 degrees is .0035 so movement of .00175 in 2" would give you that. --Jerry
I didn't see anything about vertical he said a 12 group . Larry
carlsbad
Lions don't lose sleep over the opinions of sheep.
OK. So 12" in any direction is still .00175" movement at the screw assuming 2" apart. If 4" apart it is .00088" of movement. --Jerry
I seen 3 screw holes I thought was strange
Larry
These four paragraphs explain the "fix" to my rifle. After three range trips and 100 rounds of Ammo testing various mounts, scopes, etc., the gun is fixed. I drilled two holes through the mount into the receiver and pinned the mount with 1" X 1/8" roll pins. I also loaded up another 100 rounds of ammo, 50 with nosler cc 107 grain, and 50 107 g smk's.
Within three shots with the smk's I was out to 240 yards and testing for groupings. Nothing out of the ordinary. 5 shoots slightly less than 1" apart, with three shots touching. I shot another group about the same for a second group. So far so good!! Maybe the pinning did the trick!!
On to the noslers. First two shots 1" apart, third shot 6" high, next shot 4" high and 4" wide!! Man o man, it was the bullets all along. I loaded the rounds to exactly the same oal, same case prep, primers, annealing, etc.
More shooting bore out the noslers couldn't do better than around 14" at 238 yards. WTF?!? Noslers are great bullets, but apparently not with this load and at the oal on my gun.
Back to the loading table but at least I know the mount is working!!
Any ideas what is going wrong with the Noslers???!?!
Within three shots with the smk's I was out to 240 yards and testing for groupings. Nothing out of the ordinary. 5 shoots slightly less than 1" apart, with three shots touching. I shot another group about the same for a second group. So far so good!! Maybe the pinning did the trick!!
On to the noslers. First two shots 1" apart, third shot 6" high, next shot 4" high and 4" wide!! Man o man, it was the bullets all along. I loaded the rounds to exactly the same oal, same case prep, primers, annealing, etc.
More shooting bore out the noslers couldn't do better than around 14" at 238 yards. WTF?!? Noslers are great bullets, but apparently not with this load and at the oal on my gun.
Back to the loading table but at least I know the mount is working!!
Any ideas what is going wrong with the Noslers???!?!
I own an excellent Elisio R5 with a 700 action chambered in 6mm BR. The gun has been a proven performer, even if I am only a so so wind reader and semi hard holder.
I was going to use the gun for a recent 1000 yard match at R117 on Pendleton when I discovered I didn't have enough elevation with the current base and scope combo to reach out that far.
After I shot the match with another gun I took the base off the Elisio and milled about 0.034 off at a tape to get me the 20 moa I was short.
[/URL
]
The first range trip to test the gun was a disaster. The gun was shooting close to 20” groups, at least with the bullet holes I could find. There were some machining marks on the bottom of the base, and I suspected those caused the base to move. I once again took off the base and carefully surfaced it.
The base is super flat, and seems to tighten down tight. However, upon testing it again today the gun is shooting 12” groups at 100 yards(more or less, usually more). I tried a different scope just to make sure the scope wasn’t the issue. The problem doesn’t change with scopes!!
Needless to say, I am disraught that my BEST shooter is now my worst shooter, and I am the one who ruined it.
My question is, would it be possible to bed the mount to insure a solid fit into the R5 chassis? I am almost certain the base is moving, and it’s also the only variable between ½ moa performance and the new 12 moa shooting.
[/URL
Save your money and get a new barrel .
But bore scope should tell . Larry
Doug Beach
Silver $$ Contributor
Measure the diameter of the Noslers. I have the 105 CC's, mine measure .2423. They shoot very well in my 6br, but they are definitely undersized in comparison to SMK's.
I can't measure to the 0.0001 but I can kind of guesstimate.
The smk's are 0.2431. Some might push 0.2433.
The noslers vary from 0.2398 down to a few 0.2395. Very few, but they're in the box.
The noslers are very consistant in ogive to base. The smk's not as much. Some of the smk's are noticeably not concentric as you rotate them in the micrometer jaws, and the difference can be around 0.0002.
I learned a valuable lesson through this little screw up.
Upgrades & Donations
This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.