I think I may have a bedding Issue. I set up a jig to test stock/barrel deflection when loosening and tightening action bolts on my 2500x in a Rotex stock. The front and rear screws yield zero movement when changing action bolt torque. However the middle bolt causes deflection of about .0012" at the end of the forearm. I made a video below that shows it. My question is, is this too much? Should I have it re-bedded?
Bedding Issue?
- Thread starter Sadshot
- Start date
Don't use the middle bolt or just tighten it less than the front and back.
stiller
Administrator (Grand Overlord) ;<)
If its only moving a thousands of an inch, you have nothing to worry about.
I agree I'm no expert but the whole testing process in the video looks a little hokey.
I think you need to clamp the stock in a mill or a vice something sturdy and index off of the barrel.... J Patterson has a good video online that shows the correct test process....
Rifle Action Bedding Gauge Fixture | eBay
This version works on most barrels including 1.25" F-Class barrels.
www.ebay.com
An ebay seller makes this rifle bedding guage and it works well.
stiller
Administrator (Grand Overlord) ;<)
What he is doing looks fine to me. The dial base is attached to the barrel and he is measuring the stock. I'm not sure what more to do as long as the dial base is rigidly hooked to the barrel. Most have a magnetic V groove. Overall this isn't rocket science.
Thanks BP. I just bought one!Rifle Action Bedding Gauge Fixture | eBay
This version works on most barrels including 1.25" F-Class barrels.www.ebay.com
An ebay seller makes this rifle bedding guage and it works well.
This is what I saw as well. I usually indicate to the bottom side of the stock but as long as the indicator is attached to the barrel and the tip is on the stock, it really does not matter where on the stock the tip touches. The travel of the indicator does need to be 90 degrees to the stock to give a true reading.
It does appear in the video that you are using a .0001 indicator which makes it appear like there is a lot of movement.
The measuring Device that JeffP used was designed and built by Steve Wieck. One of the founders and former Sec treasure of ARA. He built a few of those devices had them powder coated and sent them to friends and acquaintances.
Steve was a good machinist! He sadly passed away a few years ago.
Steve was a good machinist! He sadly passed away a few years ago.
I bought one of these a few weeks ago and have used on two of my F-class CF rifles. It works really well!Rifle Action Bedding Gauge Fixture | eBay
This version works on most barrels including 1.25" F-Class barrels.www.ebay.com
An ebay seller makes this rifle bedding guage and it works well.
What would be excessive movement. 5 thousand, 10 thousand of an inch. I know you want little to no movement but what is considered to much?
I am clamped to the barrel and indexing off of the stock. I got the idea from Patterson's video. I did not know how much was too much. I will test the torque on the middle screw to see if there is a sweet spot for accuracy.
I may pick one up to see if it works better than my contraption.Rifle Action Bedding Gauge Fixture | eBay
This version works on most barrels including 1.25" F-Class barrels.www.ebay.com
An ebay seller makes this rifle bedding guage and it works well.
Just my 2 cents but I'd get rid of or as close as possible, that center screw, if it's not absolutely necessary, I never even use it if I can get by without it. It can only hurt...can't help anything IMHO. Yes, you might be able to tune with it a little bit but that in itself tells you something is wrong. I just don't see it as necessary on most actions and a good place for trouble to happen. It can't cause trouble if'n it's not there.
Thanks Mike, I will give that a try as well.Just my 2 cents but I'd get rid of or as close as possible, that center screw, if it's not absolutely necessary, I never even use it if I can get by without it. It can only hurt...can't help anything IMHO. Yes, you might be able to tune with it a little bit but that in itself tells you something is wrong. I just don't see it as necessary on most actions and a good place for trouble to happen. It can't cause trouble if'n it's not there.