Ok, my Remington shot the 100g speer BTSP like a benchrest rifle with 57-58g of R#19, win case with a win primer, bullet jump was .040. I could shoot humming birds at 300 yards with this rifle with a Burris 6x24 on it.
ON the 117, and 100g, I had a custom made with a 26" barrel with minimal freebore. I shot a 100g bullet with a load of 63g of R#25 with a fed 215 in a win case at 3600 fps, all bullets touched at 100 yards, and shot 58g of R#25 with the 117g Sierra flat base at 3350 and this was a MAX load for my rifle.
Please work up to these loads, back off 6.0g and work up in your rifle, I am just illustrated what was happening with my custom rifle.
My rifle was a 12twist shilen barrel, 26" long and the 100g sierra Flat base was the only bullet that would stabilize and the 117g Sierra flat base shot 3/8" groups also. This minimal twist rate, I am sure lowered pressures to where I could reach these velocities. What is really weird was that the 100g load never had to be full length sized while the 117g load had to be full length sized on every firing.
Again, back off 6.0g and work up to these loads in your rifle if you have a 10" twist especially.
The 100g Speer spbt is one of the best deer bullets on the market.
A Texan gunsmith built this rifle for me, and I lost his contact info a long time ago.