Thread: Uberti 38-55 1885 High Wall Sporter - first impressions, photo heavy

Now I shall try to put this politely.... If you ignore the chronograph numbers and look at holes in paper...which is best load??? That rifle doesn't care for numbers,the fellas who made it hadn't even had a wet dream/nightmare about ES....so try forgetting it and just see how you go for a bit... By all means come back to it but as a wise old grizzly fella once said" many a great load has been ruined by a chronograph". If it's accurate the numbers don't matter.

Originally Posted by Micky Duck

Now I shall try to put this politely.... If you ignore the chronograph numbers and look at holes in paper...which is best load??? That rifle doesn't care for numbers,the fellas who made it hadn't even had a wet dream/nightmare about ES....so try forgetting it and just see how you go for a bit... By all means come back to it but as a wise old grizzly fella once said" many a great load has been ruined by a chronograph". If it's accurate the numbers don't matter.

Bahaaa...yes I know Mickey, but fun is fun. And yiu have to admit, there is a fair degree of correlation between good groups and velocity/ES.
Which is to say, you don't tend to see good groups with a large ES. And its amazing how a small change in velocity, tied directly to the amount of powder in the charge, is reflected in the quality of the group. Yes, I understand the group is also affected by other factors not the least of which is the nut holding the wheel. What I do find is that a projectile that groups well with a particular powder at a a certain velocity is likely to return similar group performance at that velocity with another powder. All other things, including the wheel nut, being reasonably equal. That has value at a time when supply forces different choices in powder. It also satisfies my curiosity, somewhat...

Originally Posted by Micky Duck

Now I shall try to put this politely.... If you ignore the chronograph numbers and look at holes in paper...which is best load??? That rifle doesn't care for numbers,the fellas who made it hadn't even had a wet dream/nightmare about ES....so try forgetting it and just see how you go for a bit... By all means come back to it but as a wise old grizzly fella once said" many a great load has been ruined by a chronograph". If it's accurate the numbers don't matter.

Context matters here Micky, a lot.
All well and good when you're shooting modern cartridges in the 2500-3000 FPS range with small slippery projectiles at <300m ranges to have a bit of variation. But his variation is often in excess of 10% of his total velocity. If he were to use this rifle at greater than 49m the vertical spread would become problematic very quickly rendering it unreliable for even hunting accuracy. Even at 100m this variation is going to show up, 200m you'd be off paper with some shots. It does need to be rectified.

I've had this issue before in 44-40 with great accuracy at 50m but massive vertical variation beyond. I believe it's low fill percentages of powder causing quite extreme positional sensitivity. Change powder to something with a higher fill percentage or much lower positional sensitivity. I remember your posts about black powder being an issue because of lung issues so trying to find someone with some trailboss or similar might be your best bet.

I'm about to load up some black powder 38-55 for some sighting in for the weekend, will come back and report my velocities and spread (I hope for sub 15fps ES).

Also as an accuracy target my Uberti 1873 44-40 lever action will group with all shots touching at 50m. I would expect more from this rifle and wouldn't settle for the current groupings.

Group two in first is good and three in next lot is also interesting as if you moved holes horizontally it would be a very tight group...keep playing and something will fall into place,your brass is now sized in your chamber too which just has to help. Trail boss could be interesting indeed although folks with chronograph have rubbished it for subsonic loads n prefer faster pistol powders.... It went bang n bullets came out end for me lol