Kind of a part 2 of my other post.  I loaded a few rounds to try out my Whelen today.  I had some 250gr Speer HC, 250gr Speer GS, 250gr Hornady IL SP and 225gr TSX.
Followed the Alliant data of max load of 59.5gr of RL15 (2550fps with 24" barrel)) and Barnes max load of 60gr of RL15 (2713fps with 24" barrel) for the regular X 225gr (Barnes also say that you can usually go 1-2 grain over with the TSX).
So I started two grains lower for both, 57.5, 58.5 and 59.5 for the 250 grainers and 58, 59, 60 for the 225 TSX.
Went to the range today with the Chrony and started with my minimum loads
57.5gr with the 250 grainers: 2654fps!!! and flat primer (didn't shoot the higher loads) 
 
58gr with the 225 TSX: 2809fps!!! and flat primer (didn't shoot the higher loads) 
 
I'm getting 100fps higher than their respective max loads with two grain lower (technically 4gr lower if you add the 1-2 gr for the TSX) with a 22" barrel!?!? Weird!
  Weird!
I'm gonna pull the others, start even lower and go back tomorrow. As a reference, the factory Remington 200gr PSPCL ran at 2816fps.
				
			Followed the Alliant data of max load of 59.5gr of RL15 (2550fps with 24" barrel)) and Barnes max load of 60gr of RL15 (2713fps with 24" barrel) for the regular X 225gr (Barnes also say that you can usually go 1-2 grain over with the TSX).
So I started two grains lower for both, 57.5, 58.5 and 59.5 for the 250 grainers and 58, 59, 60 for the 225 TSX.
Went to the range today with the Chrony and started with my minimum loads
57.5gr with the 250 grainers: 2654fps!!! and flat primer (didn't shoot the higher loads)
58gr with the 225 TSX: 2809fps!!! and flat primer (didn't shoot the higher loads)
I'm getting 100fps higher than their respective max loads with two grain lower (technically 4gr lower if you add the 1-2 gr for the TSX) with a 22" barrel!?!?
I'm gonna pull the others, start even lower and go back tomorrow. As a reference, the factory Remington 200gr PSPCL ran at 2816fps.
			
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