7mm08 loads
- Thread starter N5ATK
- Start date
I will disagree for multiple reasons......You need to take as much as the
human element out of the initial load development as possible. Find what
that barrel works best with, then out to the field.......Those targets that were
posted are marked, 50 yards. It's mostly shooter induced. And for all we
know, the trigger pull is at 10 lbs.
Wild Bill IV
Gold $$ Contributor
Read the targets!!!!
I see vertical strings!!! Barrel is touching the stock!!!
Doesn't matter the method of testing at this point!!!
The rifle is at fault!!! Human error doesn't matter!!!
It is still going to shoot strings until the rifle is fixed!!!
I've learned, as a hunter, bipod with squeeze bag, on the matte is better than the bench!!! A much more stable environment!!!
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dhagerty40
Gold $$ Contributor
based on your picture, you have the older stock. I bet you are touching near the front. Try the dollar or card stock trick we posted.
Tupperware stocks will do that.....take a player card and slide it
under the barrel to the lug. Any contact ?? Repeat this by pushing
the stock in all directions. If it binds during this test, barrel channel
will need some relief. Also check your action screw torque. It should
be around 40 inch pounds for the plastic stocks. Check this first before
doing the card test.
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Wild Bill IV
Gold $$ Contributor
Wild Bill IV
Gold $$ Contributor
I believe we all have come to a conclusion!!!
The rifle is at fault and needs corrected before any more load development!!!
Solutions:
1. Restock the action (high cost method)
2. Bed the lug and relieve the stock/barrel (messy and time consuming)
3. Shim the rifle barrel up with shims in the lug well base and stabilizing and centering the barrel by shiming around the lug well!!! (fast, easy, and reversible)
No 3 is a fast, simple, and cheap fix at this point to check to see if the strings can be eliminated!!
What does the OP and forum recommend??????
The rifle is at fault and needs corrected before any more load development!!!
Solutions:
1. Restock the action (high cost method)
2. Bed the lug and relieve the stock/barrel (messy and time consuming)
3. Shim the rifle barrel up with shims in the lug well base and stabilizing and centering the barrel by shiming around the lug well!!! (fast, easy, and reversible)
No 3 is a fast, simple, and cheap fix at this point to check to see if the strings can be eliminated!!
What does the OP and forum recommend??????
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Coyotefurharvester
Silver $$ Contributor
Strapping a limber stocked rifle into a lead sled can/could result in wild groups,especially sporter contour rifles. Good bags/ bench and wind watching to test loads.
rdremsek
Silver $$ Contributor
Try sierra 120 grn pro hunter Spitzer flat base product 1900 with varget powder I've shot deer and bear with them they hammer them 1/2 inch groups all day from a stock rem 700 mountain rifle if you need load data pm me think its 44 grns with match primers.
Wild Bill IV
Gold $$ Contributor
Hopefully it is 2900, not 1900!!!!
jds holler
Gold $$ Contributor
I too am just starting to load for 7-08 - two different rifles.
A friend and his spouse.
It occurred to me that the same Staball 6.5 powder that I'm having great luck with on my Creed, will also be perfectly in the zone for this cartridge. AND it's the new magical copper scrubbing type.
AND, It goes through a measure like water. AND - it's' all over town at every store that sells powder. (often cheaper)
These are deer killing shells, and I've got a few boxes of Hornady 139 SST's to work with. If I can take the chronograph and rifles to the range and get sonmething to shoot around 2900 fps, and group 2 MOA -- we're DONE. and I'll bet we do better than that.
Frankly, since the powder shortages and trying different powders, I couldn't care if I never handle 4350 again.
jd
A friend and his spouse. It occurred to me that the same Staball 6.5 powder that I'm having great luck with on my Creed, will also be perfectly in the zone for this cartridge. AND it's the new magical copper scrubbing type.
AND, It goes through a measure like water. AND - it's' all over town at every store that sells powder. (often cheaper) These are deer killing shells, and I've got a few boxes of Hornady 139 SST's to work with. If I can take the chronograph and rifles to the range and get sonmething to shoot around 2900 fps, and group 2 MOA -- we're DONE. and I'll bet we do better than that.
Frankly, since the powder shortages and trying different powders, I couldn't care if I never handle 4350 again.
jdnot strapped in
Wild Bill IV
Gold $$ Contributor
KEVIN, Please reply!!
Is the stock making contact with the barrel????????
I'm trying to help you be a successful hunter, shooter, reloader!!!
I believe you are experiencing some problems I had with my synthetic stocks!!
I know how to make the situation better possibly!!!
The rifle is salvageable!!!!
Lets examine the solution one step at a time!!! 1st step: dollar bill test!!!!
Together, with help of some of this forum, we can make that 7-08 rifle A 3/4" MOA or better shooter!!!
Words from a 7-08 shooter that had a 0.388" Major spread at 100 yards (0.124 true MOA) 7 shot group and could not miss sending golf balls over the 200 meter berm with 160gr SBT SGK in the proned , bipod position!!!! Not target bullets!!!!
Hold your head up Kevin!!!
The light will shine, if you let it!!!!
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dhagerty40
Gold $$ Contributor
He is right here! The only reason I replaced the stock was the gun was beating me up!
Wild Bill IV
Gold $$ Contributor
That is very understandable!!!
Light rifles make heavy felt recoil!!!!
I understand the physics fundamentals!!!
BS in Industrial Physics, AS in Mathematics!!!
Sorry I was at the range with a different rifle , I can slide a 20 dollar bill from the end of the stock to the/and under the end of the scope with zero binding and back again
dryhumor
When an old man dies, a library is lost forever...
Staball 6.5 works with Berger 168s pretty well. Alpha cases.I too am just starting to load for 7-08 - two different rifles.
It occurred to me that the same Staball 6.5 powder that I'm having great luck with on my Creed, will also be perfectly in the zone for this cartridge. AND it's the new magical copper scrubbing type.
These are deer killing shells, and I've got a few boxes of Hornady 139 SST's to work with. If I can take the chronograph and rifles to the range and get sonmething to shoot around 2900 fps, and group 2 MOA -- we're DONE. and I'll bet we do better than that.
Frankly, since the powder shortages and trying different powders, I couldn't care if I never handle 4350 again.
Wild Bill IV
Gold $$ Contributor
That is good news!!!
I've been thinking about other causes and have several questions!!!
1. Did you use the lead sled for that different rifle, and did you have any issued with that rifle???
2. Is your scope securely fastened down???
3. Does your scope have parallax adjustment and if so, was it adjusted and checked for the range to the target????
4. Do you know how to check to make sure the parallax is adjusted properly???
Need to start the elimination process!!! The lead sled, no lose scope rings or mounts, properly adjusted parallax!!
If these are not a problem, the flexing of the stock is possibly causing the strings!!!
Murray Brook
Silver $$ Contributor
Two powders that have given me great accuracy with 145 gr class bullets in any 7/08 that I have ever owned was WW 760 and H100V. JME
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