Low Pressure 500N.E. rounds

[Capt_Oscar]

I have 2 - 500 Nitro Express rifles, a custom Ruger No1 and a TC Encore. The TC Encore needs a lighter recoiling round then factory ammo as it comes in at a mere 8lbs and that is vicious with full throttle ammo. I'm playing with some 500gr Woodleigh FP, designed for 50Alaskan or 50-110Win. I also found some 450gr Barnes Originals for the same cartridges.
The goal is to load them down to approximately 2000fps muzzle velocity but if I get good consistent SDs in the 1800-2000fps I'll be happy.
I need it to warm up a little for testing as we're currently hoping for a high of 6°F today. Maybe this coming weekend, expected 37F.

 

[Huvius]

Look up Nitro for Black loads which in effect are reduced loads in the nitro sense.

I’ve used H4198 and backer rod for NfB loading.

 

[Rare Breed]

I have 2 - 500 Nitro Express rifles, a custom Ruger No1 and a TC Encore. The TC Encore needs a lighter recoiling round then factory ammo as it comes in at a mere 8lbs and that is vicious with full throttle ammo. I'm playing with some 500gr Woodleigh FP, designed for 50Alaskan or 50-110Win. I also found some 450gr Barnes Originals for the same cartridges.
The goal is to load them down to approximately 2000fps muzzle velocity but if I get good consistent SDs in the 1800-2000fps I'll be happy.
I need it to warm up a little for testing as we're currently hoping for a high of 6°F today. Maybe this coming weekend, expected 37F.

I recommend going to IMR3031 at 80 grains which will produce 2152 FPS with very reduced recoil using 570 grain bullets

 

[Capt_Oscar]

I don't like to drop that far down on a powder charge without some kind of wad/filler as you can get wild pressure swings based on how the powder column ignites. While my Ruger No1 would handle that issue, with the TC Encore you could have a barrel blow up on you.

 

[Rare Breed]

I use fillers no problem. Trader Keith #2’s. your shoulder will thank you!