Originally Posted by redneckclimbing
I believe those are linear expansion numbers but, you do make a point. Stuff really has to heat up to grow enough to get loose. That, combined with it just being a jam nut, makes me think it would work.
Ti would be a very strong option except that it is heavier than Al and is especially hard to machine, (from what I've heard).
With an Al nut 1.30" in diameter and an internal diameter of 1.0" and being .75" long you would save 2.3 oz over a steel barrel nut of the same dimensions.
So, if you barrel nut a Rem action as discussed earlier you only save about 1.2 oz. with a steel barrel nut. However, with the Al nut you would save about 3.5 oz.
Some people might say that's not worth it but if you figure that a pair of two piece Talley bases weigh about 2 ozs., that might make you think.
Thinking outside of the box is always good if you have a single objective in mind (Weight for
example). It breeds innovation but it can also just be a bad idea.
A ultra light rifle has many attributes for carrying and short distance hunting, But from a accuracy
point they are more difficult for the marksman to use at extended distances. (Not as steady and
much more finicky in load development) they can be very accurate under perfect conditions and
positions, (But how often are perfect conditions present while hunting).
Dissimilar metals have a way of causing problems and mixing Aluminum and steel is problematic
and may cause problems. (I once had a 30/378 built on a chrome Molly action, I decided to replace
the action screws with stainless because the factory ones were slot head screws and harder to
torque than the Allen head screws I had.)
Every 8 to 10 shots accuracy would fall off and after checking the torque the screws had loosened.
not believing that the problem was stainless to chrome Molly, I switched back to the steel slot
head screws, end of problem. Later I found some Allen head screws in steel and they are still on
I also don't like the aluminum scope bases and rings because of there strength.Almost without
exception, every failure has been while hunting and I just don't take the chance any more.
I seem to learn my lessons the hard way so I have become very conservative.
Just some recommendations.
J E CUSTOM