Old/New
I have not tried the Lehigh 200gr in my PH. But it appears your Triumph doesn't shoot them any better than my 45 Accura.
A couple thoughts... I am surprised that the Accura in 45 cal is a 1/28. You probably have the best opportunity to achieve real accuracy in the 45 than the 50 cal PH. I noted that you did shoot it with 115 grains of BH and I am thinking it would not take much more to achieve the 2300 fps. The 45 bore produces slighly more pressure than does the 50 cal bore with the same amount of powder. Next because the 200 Lehigh is so light - it really gets out the barrel quickly and reduces the efficiency of BH. I believe that Tom is shooting 130 grains and possibly the MMP Tan sabot.
So...do you think it's a wast of time to try different powders/sabots in the Accura? I have only used BH209 & light blue CR sabots as well as light blue smoothe sabots.
It is possible that a non- crush rib sabot like the MMP tan sabot might produce better results as it might provide a tighter gas seal - increasing velocity.
I may try shooting them in my PH. What sabots do you use for the 200gr Lehigh in a 50cal?
When I was shooting the 200 Lehigh's I was using the Blue MMP 40/50 cal sabot. I would never discourage you from trying the PH, as each gun has their differences - it just might fly out of it very well. The other day when I was shooting the Triumph I really wish i had been smart enough to use a Harvester Blue CR - who knows that might have worked. I really hope to try it later this week.
To be honest with you, because I only shoot 50 cal ML's I think I am going to move to the 250. When I shot them a couple of weeks ago - I was shooting the 200 grain Lehigh's at 2000-2050 fps with a 110 grains of BH-209. When I switched to the 250's the velocity only dropped to 1975 and the accuracy was right where it should be. For me, here in Idaho the 250's will work way good.
I will try the new 185's when they get out, but I have not done any Ballistic information calculations on them at all.