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d45/70
HB Full Member
| Joined: | 29 October 2008 |
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| Posts: | 14 |
| Photo: | [Download] | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | big bore dangerous game |
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Posted: 4 November 2008 10:29 PM |
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| I have a Marlin 45/70 that I had a Bushnell Ellette 3x9 on for years.Great scope but I wanted one with MORE eye room, I got a cabalas Lever action scope for it. The scope I like, although I had to send the first one back. The lens chipped off three peaces of glass in the scope(???) must have been a defect? Any way The replacement one I cant keep tight. The same mounts and rings as before and the other ones never moved. Its not the screws there still locked down. After like 20 shots the scope will rotate or slide back as far as an 1/8 inch. I have been checking it right along and it looks like when it moves it moves all at once?????What the Hell?? It will hold the point of impact till it moves then WAY OFF!! I made some marks on the scope and rings when it moves I can loosen the screws and put it back and the POI is near the same. How am I going to fix this problem? Last edited on 4 November 2008 10:30 PM by d45/70
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wheezengeezer
addicted handloader
| Joined: | 16 July 2007 |
| Location: | Jeddediah Jones Swamp, Kansas USA |
| Posts: | 708 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | pistol |
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Posted: 5 November 2008 01:13 AM |
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get some rosin to apply between scope and mounts.if you cant find it anywhere, find a gunsmith who has some.may need shims to make clamping more secure.when the screws are tight there should be some gap between the halves.if not that is the problem.
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I was raised in the 50's on gunpowder and jackrabbits.salt and pepper wooda made'em taste better
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sako06
addicted handloader
| Joined: | 22 July 2007 |
| Location: | California USA |
| Posts: | 508 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 6 November 2008 03:32 AM |
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| First off what brand are the rings? I've never had any problems with Redfield steel rings(now made in china).A friend of mine bought the cabelas scope for his 45-70 & had to shim it to raise it up enough to regain adjustment ,he made shims out of an aluminum coke can.Add shims to so you can tighten the screws a bit to snug the scope down.
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swampshooter
HB Full Member
| Joined: | 3 August 2008 |
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| Posts: | 90 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 6 November 2008 12:03 PM |
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| Try putting a strip of paper on the inside of each lower ring. That's always worked for me. I've tried rosin with no luck, but it's worth a try. When a scope moves it always slides back some degree. Put a spot of black nail polish on the front joint of rings and scope, any movement will then be very evident as a large crack will appear in the nail polish. Of course any color will work. I have a .458 that will move the scope. The only thing that has worked so far is the paper strip inside the lower ring.
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sako06
addicted handloader
| Joined: | 22 July 2007 |
| Location: | California USA |
| Posts: | 508 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 6 November 2008 04:23 PM |
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| My GS saved business cards, coated them with shellac and used them as try shims on scopes then if all was right he'd mic them and make a permanent metal shim.
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swampshooter
HB Full Member
| Joined: | 3 August 2008 |
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| Posts: | 90 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 7 November 2008 12:24 PM |
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| I never found a need to waterproof the paper strips, but then if it's pouring down rain I tend to stay in camp. I found business cards to be a little bit too thick, but it is worth a try. I was always afraid a business card might dent the scope when tightened down.
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varmintcaller
HB Pro Staff
| Joined: | 30 December 2007 |
| Location: | Wilder, Idaho USA |
| Posts: | 162 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 18 November 2008 11:41 PM |
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| I use Rubber Cement, coat the inside of the rings (degrease first) let dry, and install the scope. I havent had a scope slip since using the Rubber Cement.
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Rockydog
addicted handloader
| Joined: | 26 July 2005 |
| Location: | Wisconsin USA |
| Posts: | 488 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 19 November 2008 03:05 AM |
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| I've heard of using a strip of 600 grit sandpaper between the rings and scope. Sandpaper to the scope side. Beware, it will leave a mark. RD
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DesertMarine
HB Full Member
| Joined: | 12 November 2008 |
| Location: | New Mexico USA |
| Posts: | 86 |
| Photo: | [Download] | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | rifle |
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Posted: 25 November 2008 06:50 PM |
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| The December issue of American Rifleman has an excellent article on scope mounting. They use duct tape on the rings for a problem such as yours. They also talk about how much to torque mount and scope screws.
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SCSlim
HB Life Member
| Joined: | 2 May 2008 |
| Location: | Boise, Idaho USA |
| Posts: | 257 |
| Photo: | [Download] | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 26 November 2008 10:42 PM |
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DesertMarine wrote: They use duct tape on the rings for a problem such as yours.
Yet another of the thousands of uses for that marvelous stuff.
I belonged to a flying club a few years back. One of our two planes (it was a small club) was an old rag-winged Cessna 120 taildragger. One of the members was out burning holes in the sky with it one day and flew into a flock of ducks. One of the unlucky devils struck the left wing about a foot from the root and made a pretty big ding in the leading edge and mashed about 1.5 square feet of the dope-covered fabric. We applied a temporary fix of - guess what - duct tape, and flew it without further incident until we had the time and manpower to re-cover and re-dope the affected wing. I flew it before, with, and after the patch job and didn't notice any degradation in performance at all.
Long live duct tape! May their stock ever be on the rise.
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40twist
HB Full Member
| Joined: | 15 June 2008 |
| Location: | Leola, Pennsylvania USA |
| Posts: | 41 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 28 November 2008 11:31 AM |
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DesertMarine wrote: The December issue of American Rifleman has an excellent article on scope mounting. They use duct tape on the rings for a problem such as yours. They also talk about how much to torque mount and scope screws.
I did read that too it was a good article....then a week later I bought "shooting" magazine and they had the same article in it too. You may be very surprised at how little they need to be tightened down when installed correctly.... when that torque driver clicks its like theres NO WAY that is going to hold it but it does... I also always use blue loctite , a tiny bit , on my screws.
If you overtightened it initially the screws may be damaged to the point that they have no "stretch" left and therefore cannot be "Preloaded" to keep themselves tight anymore. If they where cheap rings i would buy another set and start over....whatever you do DON'T go cranking on those screws tighter and tighter trying to make it not come loose... you will do more damge then good.
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bea175
Board Founder
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Posted: 28 November 2008 02:33 PM |
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| Replace the rings with Warne Maxim and your problem will go away
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