Thread: Tyre kicking - 300prc

Originally Posted by SPEARONZ

Here’s some data for RL25. There is not really anything on any of the forums. There is also nothing in GRT.

Hornady has this as the highest velocity for the 225eldm maxing out at 2850fps.

I used Fiocchi LR primers due to availability. This may explain the results but I’m surprised to have had to go way over book max and not even get close to their speeds.

RL25
Lapua virgin brass
Fiocchi LR primers
COAL: 3.68”
24” barrel (new)
13C
Magneto speed ( verified with a proven load )

73gn 2441
73.5 2475
74 2517
74.5 2512
75 2544
75.5 2573
76 22576
76.5 2594
77 2606 (book max - claimed 2850 using fed 215s)
77.5 2630
78 2649
78.5 2646
79 2693
79.5 2718
80 2736 - ejector stamp

I will try another powder and if need be can revisit 76.5 - 78.5 which all grouped together with a 55fps spread over 2grains. I keep telling myself I don’t need the speed but a loss of 200fps is a lot.

I would have thought magnum primers would only have assisted in consistency not velocity as Fiocchi use these in all their magnum loads.

You might get better results with 1 x fired brass as well.

In my experience the fireformed brass performs marginally better, and once the barrel has settled down you can get another 20-50 fps.

YMMV