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sharpshooter
07-18-2015, 12:10 AM
You get more vertical because the bullet spends more time in the barrel. The rifle recoils the moment it leaves the case, and the longer it's in the barrel, the more vertical the barrel moves before the bullet exits. It is more evident on bigger calibers like .308, and more evident when shooting from a rest. It is a sign that the rifle is not recoiling the same everytime due to an inconsistant hold.

LongRange
07-18-2015, 06:54 AM
thanks Fred...i will work on my hold.....i also need to work on follow through.

LongRange
07-21-2015, 09:17 AM
so i went out 5 time last weekend....3 time saturday and twice sunday....ill try and keep this short and am not going to post a bunch of pics until i get a few things figured out.

so i put this rifle back together and threw a piece of my sized brass in to make sure everything was ok....i like my brass to chamber a little tight so i size accordingly...well when i checked after putting the rifle back together it felt just a little bit tight but not overly so.
i loaded up an OCW test with 140g BTHP hornadys the fed 210 match primers and RL-17....saturday morning i went out and shot the OCW(followed to the letter)and out of the 7 groups only one made any since and that was 42g....every other group had no rime or reason to how each shot hit the target...meaning there was no pattern.

so i went home and loaded up 10 rounds at .020 off the lands(OCW seating depth),5 at .010 off,5 at .030 off and 5 at .040 off. i went back out and set up at 400yds and shot the .040 group first...shots 1&2 were so close you could just call it 1 hole and were a 1/8" right of dead center....shot 3 didnt even hit the target(40"tall buy 24" wide)from what i could see it went way high and left...shot 4 way high and right...shot 5 5" low and in line with 1&2....WTF!!!!
i went out and moved my target in to 200yds and shot the .030 group....this was a 7" scattered group....i then shot the .010 group and it shot the same as the .040 group....first 2 in the same hole but 3 went 5" high right....4 went 6" low and way left and 5 went about the same but 2" right....now im not the best trigger man but 6&7" groups at 200yds???
i blamed the RL-17 because my lowest ES was 57fps but at 200yds it shouldnt make a 6" POI shift....with the last of the .020 group i did a tracking check...i shot 1 round dead center of target...added 3 moa elev and shot round 2....down 6 moa and shot round 3....back to center and 3 moa left shot round 4....6 moa right and shot round 5....back to dead center and shot round 6....i let the barrel cool a little between each of these shots and ALL shots were with in 1/4" of actual adjustments so the scope is not the problem.

i went home and loaded an OCW with the same bullets and primers but with H4350 and went out and shot it...when i got home i decided to bump the shoulders on the brass i was going to load for the seating depth test in the morning because like i said the brass was fitting a little tight....i bumped a shoulder back .002 and chambered the piece and it was still tight so i measured that piece and i was 1.621 which should of chambered nice or even a little loose but i sized one more piece and it measured 1.620 which should be loose but was still tight...i then cycled the bolt with no brass and it felt just about the same as with a piece of brass....this action has ALWAYS cycled nice and smooth now(after all of this and pulling the barrel AGAIN)i found that the bolt body is dragging on the action at about 4 to 5 o'clock right behind the lugs if your looking from the butt end.

so now im wondering is the action tweaked from the 30" barrel? the bolt was fine when that barrel was on.
is the bolt body tweaked? it was fine with the 30" barrel on.
when i let the barrel cool between shots it seems to shoot pretty good but not so great when warm?i need to check this.
lotta questions here.


i did out and shoot the seating test sunday morning from the 140g hornaday H4350 OCW and had i little improvement but not enough to pursue so i loaded up an OCW test with H4350 fed 210m primer and 142g SMKs and shot that ocw which shows great promise because all 7 groups follow a pattern they are not just random like with the 140g hornadys...but theres still the bolt issue/questions...im going to shoot a seating test with the 142g SMKs before i do anything else to the rifle and see what happens....if the same things as above then ill start by putting the factory bolt body back and see what happens.

LongRange
07-22-2015, 08:57 AM
well this bolt issue has been bugging me so last night i pulled the action and from the looks of it the bolt has been rubbing for a long time...the funny thing is is that it has always cycled very smooth until last weekend....the only thing i can come up with is that the rubbing between the two parts finally wore through the hard smooth surfaces of the bolt and action and started to grind/drag.

there was a couple of small burrs on the bottom edge of the right lug race way and the ruff area at the bottom of the action where the bolt body has been rubbing...so the body has been rubbing on the bottom right quarter of the action but no where else. i took some 2000 grit wet and dry and smoothed the burrs off the lug race and the bottom of the action then did a little more with some 2500 grit...the bolt was still dragging so i put the factory body back together with the PT&G bolt head then used a black sharpie and coated the body where it has been rubbing and cycled the bolt a few times and it was still rubbing but just enough to show a mark in the black from the sharpie so i put the factory bolt head back on and checked again and now nothing is rubbing and the bolt cycles smooth.

i also adjusted the pin protrusion from about .055 to about .041(as best as i can tell with my crud measurments)as i was getting some pretty good cratering in the fed primers...im not sure if the bolt body issue would effect accuracy but im willing to bet it could...i guess ill find out saturday morning but at the same time i guess i wont know 100% that the body rubbing was causing problems but i guess ill have an idea.

LongRange
07-25-2015, 02:45 PM
so i made a few changes since last weekend and its seems the changes help quite a bit...i was to the point last sunday that i told myself if it dont shoot this morning its going to be a fence post tonight!!

changes...
put the factory bolt body and bolt head back together because the PT&G was rubbing
adjusted the firing pin protrusion to about .041...and ended up adjusting it more this morning as i was shooting....041 was still hitting pretty hard so i adjusted it another 1/4 of a turn. shot a group and adjusted it another 1/4 and will most likely adjust it 1/4 turn more as its just barely cratering now so im guessing it will end up about .030 to .035...but this is crud measurements using the back side of my calipers.
loosened and re-torqued action screws...40"lbs-40"lbs-10"lbs and will play with the rear(10"lbs)screw if and when i find a load that shoots.

i went out this morning and shot 20 rounds using what i thought was the 2 best loads from my H4350 OCW last weekend.
i shot this load today at 200yds and it was about a 4" group...i know...with the OCW your not looking for one hole groups but i had to try it...

http://i1239.photobucket.com/albums/ff515/LTT-/Mobile%20Uploads/photo1-112.jpg (http://s1239.photobucket.com/user/LTT-/media/Mobile%20Uploads/photo1-112.jpg.html)

this was the next load i shot because in the OCW test 41gs 41.3gs and 41.7gs all had the same POI pattern...in the OCW test i was seated .020 off so i loaded 15 rounds at 41.3gs seated .010 .020 and .030 off the lands....020 off was about 3"....030 off started low and grouped in a line vertically about 2.5"....and the pic is the .010 group...still not what i expect from this barrel but much better than it has been shooting....

http://i1239.photobucket.com/albums/ff515/LTT-/Mobile%20Uploads/photo1-113.jpg (http://s1239.photobucket.com/user/LTT-/media/Mobile%20Uploads/photo1-113.jpg.html)

i also thought last minute this morning about the RL-19 loads that shot well when the barrel was still 30" long and figured what the hell it cant shoot any worse and im glad i did or this barrel would be stuck in the ground right now LOL.

44.5gs of RL-19 and 45.2gs shot well at .010 off the lands when it was 30" so i loaded up 5 of each...the 45.2gs was all over...this is the 44.5g load at 200yds and is probably the best group shot out of this barrel....i know its not great but two things here...1st it shows promise for the first time out...2nd(and not a excuse)i can BARLEY make out the yellow against the white when looking through my scope...they almost blend together...

http://i1239.photobucket.com/albums/ff515/LTT-/Mobile%20Uploads/photo2-113.jpg (http://s1239.photobucket.com/user/LTT-/media/Mobile%20Uploads/photo2-113.jpg.html)

i have 15 rounds loaded at 44.5gs...5 at .005 off the lands...5 at .010 off and 5 at .015 off...i also loaded 5 rounds at 44gs and .010 off and 5 rounds at 44.3gs and .010 off and will shoot them latter on(if the wind dies off...about 20mph and gusting right now)or early tomorrow before the wind starts....

LongRange
07-28-2015, 09:38 AM
so i call a buddy saturday and asked him to come out and shoot with me on sunday just to see if its me or something going on with this riffle...i loaded up 5 more rounds at 44.5g of RL-19 at .010 off the lands so that we could each shoot 10 rounds...2 5 shot groups each....along with the other loads i listed above none of which shot...

we set up at 300yds and he shot the first group...

http://i1239.photobucket.com/albums/ff515/LTT-/Mobile%20Uploads/photo1-114.jpg (http://s1239.photobucket.com/user/LTT-/media/Mobile%20Uploads/photo1-114.jpg.html)

we let the barrel cool and i shot the second group....first two rounds right next to each other in the orange and then the low shot the center shot and the high shot...

http://i1239.photobucket.com/albums/ff515/LTT-/Mobile%20Uploads/photo2-114.jpg (http://s1239.photobucket.com/user/LTT-/media/Mobile%20Uploads/photo2-114.jpg.html)

we let the barrel cool then he shot the 3rd group 1-2 and 3 and then the 2 high shots...i got down as soon as he was done(no cooling time)and shot group 4....1 is the lowest shot..then 2...then 3 and 4 in the same hole...then 5.....

http://i1239.photobucket.com/albums/ff515/LTT-/Mobile%20Uploads/photo3-73.jpg (http://s1239.photobucket.com/user/LTT-/media/Mobile%20Uploads/photo3-73.jpg.html)

http://i1239.photobucket.com/albums/ff515/LTT-/Mobile%20Uploads/photo4-21.jpg (http://s1239.photobucket.com/user/LTT-/media/Mobile%20Uploads/photo4-21.jpg.html)

im not sure whats going on here as ive NEVER had these issues with this riffle...or ANY riffle for that matter...but for now im done with this until i get my barrel back from Jim at Apache. ive thrown every combo at this thing i have and nothing has shot well or consistently...the barrel Jim has is a shilen with about 28-2900 rounds through it..it will be re-chambered(260)..cut to 25" and crowned so when i get it back i will get back to this thread.

LongRange
08-01-2015, 02:49 PM
off topic here but after all the issues ive been having i started doubting my abilities.....plus we have a match next weekend and ive only shot my other 260 once or twice in the last 2 months...so i figured i better go send a few and make sure everything was good since ive had so many issues with the riffle in this thread.

wind was 7MPH left to right from where i was shooting and i have no idea at the target as i forgot to bring my target flags...the picture is upside down so the low right is actually the first(cold bore)high left...i was on and the wind was steady so i sent the other 4....this is a 2.5"x3.5" group at 655yds...2.5"x2" if you remove the cold bore shot...im thinking im not really the problem with the riffle in this thread!?!

http://i1239.photobucket.com/albums/ff515/LTT-/Mobile%20Uploads/photo-44.jpg (http://s1239.photobucket.com/user/LTT-/media/Mobile%20Uploads/photo-44.jpg.html)

this is the the riffle that shot that group....and has me wondering if my stock is part of the problem as its not quite as comfortable as this one is....time for an element i guess ;)

http://i1239.photobucket.com/albums/ff515/LTT-/Mobile%20Uploads/photo3-38.jpg (http://s1239.photobucket.com/user/LTT-/media/Mobile%20Uploads/photo3-38.jpg.html)

DanSavage
08-01-2015, 07:26 PM
Sweet! about 1/2 MOA,, It never even crossed my mind that it was your shooting abilities,,, for you are "LongRange" ,,, man!

LongRange
08-01-2015, 08:07 PM
Sweet! about 1/2 MOA,, It never even crossed my mind that it was your shooting abilities,,, for you are "LongRange" ,,, man!


Everyone has a good day now and then lol....