Curious diagonal stringing
- Thread starter Tom A Hawk
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I don't think so. None of my other rifles do this. I will elongate the pins holes today.
How would one inspect for a straight bore?
ronaldrothb49
45 Cal.
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If you are looking for the most accurate load then you need to be shooting 3 to 5 shot groups with each load. Then you take the load with the tightest group and adjust your sights.
Newtire
32 Cal.
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Might be a strange answer but when I was in my early 60's, I started noticing how my guns began shooting horizontal strings. These same guns were ones that I had shot some nice groups with prior to this. About that time, I had to go see an optometrist for a new prescription and he had me do the familiar master eye test. My master eye had switched from right to left. The doc poo poo'ed my insistence that this was opposite to what I knew to be true. A little research on the Internet revealed that this was a very common occurrence among people in my age group. If you already know which is your master eye, easy enough to test it yourself.
Hold outone thumb and point it at something with both eyes open. Now close first one eye then the other. The eye which the object does not appear to move is your master eye.
Once I had lasic, my problem disappeared. Anyways, just a possibility.
Could be due to barrel harmonics. Find the most consistant and stick with it for everything. You should be able to find at least a couple that work well.
This morning I have elongated the pin holes and eliminated a very tight spot in the barrel channel at the area where the swamped barrel is at the thinnest diameter. Have reapplied some sealer in the channel and will reassemble as soon as this dries and head to the range for testing.
Here's five shots at 50 yards after the morning modifications and with a gusty crosswind. Still some room for improvement but it seems to like 100 grains 3F Swiss. 80 grains still shoots right.
Chances are good that what you've got is a high spot in the barrel inletting. As the barrel heats up it will bear on that spot more and more, causing a change in the barrel vibration and therefore changing the strike of the next bullet. I had the same problem once --- a new rifle was centered for the first shot, then subsequent shots wandered off at one o'clock on the bull. Relieving the inletting just a skosh fixed the problem. Luck to you.
Roundball2319
40 Cal
Interesting. Thanks for sharing that.
Now you have me wondering I know at least one of my rifles was not slotted which came as a surprise but now I’m going to check others. Jim Kimbler points out the importance of slotting the keys. As a minimum as pointed out earlier it will save the stock they should float a little for best accuracy. You guys are all so smart!
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Some suggestions,............... your barrel should not take great force , Clamps , to insert it into the wood. I've had best success with a wood to metal fit , with barrel inserted with a light touch . The breach and tang area , could be inlet snug , but the barrel shank could fit snug , but not bound by the wood in the barrel channel. Thin barrels will be influenced by tight channels more readily , than thicker barrel dimensions. All you have read of elongating pinning slots in lugs is very important. If the barrel can work , and move in the wood , when the shot is fired , that would be perfection , but is infrequently attended ..............Just some thoughts.
A bore size rod slid down about two - three inches, then rotate the rod and watch the barrel. If the bore is centered and not off, the back of the barrel will turn nearly centered. An off center bore will cause the back of the barrel to make a circle.
Can someone point me towards the tool used to cut the slot would a pin router bit fit the bill?
Well, make sure it is the gun and not you so shoot left handed or have someone else shoot it and see what happens. Off hand- a barrel heating up sounds like a possible. A lot of folks don't realize it is an issue with a long barrel. For example if you solder an under rib to a barrel and the metals cool at different rates- can cause issues.
On the right hand twist. This guy to other day was telling me about it- I had not heard of it before. If you shoot right handed you need a right hand twist, if you shoot left handed, you need a left hand twist. It doesn't make sense to me- could someone explain it? Thanks.
On the right hand twist. This guy to other day was telling me about it- I had not heard of it before. If you shoot right handed you need a right hand twist, if you shoot left handed, you need a left hand twist. It doesn't make sense to me- could someone explain it? Thanks.
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Joe.........All needed to elongate a barrel pin slot is a drill bit of the same size as the pin , remove the barrel from the barrel channel ,insert the drill bit into the previously drilled pin loop hole , and move the running drill motor longitudinally back and forth. This will create enough longitudinal relief for the pin to work back and forth when the barrel vibrates when fired.
Roger!
