stovepipe's latest activity

I'm replying to my own post. OP has started other thread(s) to get people to help him and is now ignoring this one -- and everyone that...

Sorry I had a mix up. My .30 slugs are fine and shoot great. I had some .22 slugs that were not great.

Hi hgatesm. I'm kind of in disbelief as to how LITTLE help you've gotten, so far, with your question/problem. You didn''t specify the...

Hi Superpete. I used up all my old nsa 54.5 slugs and never measured the diameter with calipers. I just now measured one of the new...

I used to think that the FX externally applied rifling with the associated and seemingly necessary thin barrel was an interesting and...

Thank goodness for an endless supply of band-aids :giggle:

My FX Maverick with 700mm heavy liner (1:18 twist) liked the old NSA 54.5. Like you, I can't get the new 54.5 design to group as well...

In my small experience, airguns are more forgiving when not tuned to minimize SD. If I drive the gun hard to achieve min SD (say 1.8)...

Somewhere on this forum there must be a graph of muzzle velocity vs change in hammer spring preload when the plenum pressure stays the...

Higher plenum pressure will try to keep the valve closed stronger so that hammer might not be strong enough to open it as much as it...

My recent experience was that, when going out into the cold (low 30's F or lower) from room temperature, the plenum pressure went UP...

After my last post, I started wondering if my pressure gauge is giving me a different reading in warm vs cold temps. It's a wika 28mm...

Hi Patrick1. I notice that you have not mentioned anything about changes in plenum pressure. Are we to assume that the plenum pressure...

With a 500mm barrel and a 580cc tank, there won't be much/any clearance for a moderator. You would need to find a moderator that is...

Hi alcuerna. You have an air gauge to tell you what the air pressure is in the plenum, right? From what I've read, you haven't said...