.416 Rem Mag / 300gr TSX / 350gr MT reduced load

[4fifty8]

• 300gr TSX / 85gr Re15 / 9-1/2 M / rem brass
• for plinking 350gr Speer Mag Tip / 2.8cc~36.5gr 2400 / 9-1/2M / rem brass
• ***these loads safe in my rifle only - NOT recommendations***
• no scope iron sights 6 o'clock hold groups not bad
• handy 8.4 lb full stock Zastava 20" barrel carbine

 

[MTM]

5-6 grains onto the first load was my first hunting load back in ‘89. It was just a Barnes x back then though.

 

[4fifty8]

Right, Barnes #1 lists 92gr Re15 & 300gr as max. Used that load in my 24" barrel .416 RM @ ~2950 fps mv with excellent results out to ~400m. Same load chronographs ~2910 fps from my 20" barrel. Rather like using iron sights see how it goes. Get as close as I can then 10m closer.

 

[MTM]

Intersting on the speed. My load was 91 grs. Produced 2950 in my 24” Sako. Cut two inches off later and it dropped to 2900. Have had a couple of Winchesters since. Been a few years since my last one but have another Sako cut to 22”. Lots of Rel. 15.

 

[4fifty8]

300gr TSX low 0.29 bc loses speed real quick. Figure I can back off a bit to ~2700 fps mv it will do nicely at closer range. Got 350gr MT's reduced load for practice.

 

[MTM]

I’ve sold my .458 and .375s. No need for dangerous game rifle now just a moose gun. Got some 400 Noslers, should be fine the intended use.

 

[4fifty8]

I'm always ready for Yeti or whatever when I go hunting.

 

[Northern Shooter]

I know these are all handloads but are you aware of any factory 416 loads that offer lighter than 400grain offerings today? I know that Barnes used to load their 350 gr TTSX but I'm no longer seeing it listed on their website.

400-450 grain are all I'm seeing from the factory.

 

[4fifty8]

Buffalo Bore does .416 Rem Mag 350gr TSX & 350gr solids. https://www.buffalobore.com/index.php?l=product_list&c=250

Handloading is the way to go with these big boomers. For case longevity neck size, my Redding .416 Ruger neck sizing die works on .416 Rem Mag with de-capping pin all the way down & die backed out 3 turns.

 

[MTM]

Shot one large bear with the 350 tsx, appeared to work very well. Two diagonal shots, no bullets recovered. Second round was insurance.

 

[4fifty8]

Pretty good penetration typically shoot clear thru any angle only recovered 2 so far: https://i.imgur.com/0qkcMNT.jpg

 

[Bare]

89.5gr of reloader 15 is sending the 300tsx at 2800 in my rifle. Pretty much puts three rounds in the same hole.

I havnt found an accurate load using the 350ttsx yet

Got lots of 340gr woodleighs to work up a load as well.

My rifle is a Winchester safari classic

 

[4fifty8]

340gr Woodleigh & 78gr Re15 @ ~2450 fps group pretty good with scope.

 

[4fifty8]

Discovered today these .416 Rem Mag cases are done, re-sized many times: work-hardening caused necks to split, incipient case head separation - neck-sizing from now on.

 

[MTM]

Annealing might help the neck splits if you are going to use it that much. Die setting for the separation.

 

[4fifty8]

You got it. Old brass used to full length resize now just neck size.

 

[4fifty8]

Alliant 2400 charge +

• increased 2400 charge to 40gr+polyfil with Speer 350gr Mag Tip ~1800 fps mv
• also tried 43gr+polyfil 2400 with 300gr TSX ~2000 fps mv
• ***non-published loads - low pressure loads safe in my rifle ONLY - NOT RECOMMENDATIONS
• 100m groups not too bad could be low recoil plinking / hunting loads
• installed Leupold 2.5x20mm in lightweight Talley ringmounts checked zero ready to go

 

[4fifty8]

Alliant 2400 charge ++

• today tried 42.0gr 2400+polyfil with Speer 350gr & 350gr TSX
• ***non-published loads - low pressure safe in my rifle ONLY - NOT recommendations***
• accuracy not bad considering ~50% load density
• low recoil .416 RM load gonna see how these perform in the field

 

[4fifty8]

300gr TSX and Re7

• worked up to 59.0gr+polyfil
• ***non-published load - safe low pressure in my rifle ONLY - NOT A RECOMMENDATION***
• ok accuracy 3500 ft-lb muzzle energy recoil way less backed off by ~600 fps

 

[7mag]

Good shooting! Im excited to get my new to me 416rm up and shooting. I should have never sold the one I had a few years ago, but actually like my newone better…. Previously I shot 350g ttsx and 350g Sifft A-Frames with R15. Scary accurate. The new one will primarily be 400g a Woodleighs and 350g ttsx.