Starting load 338LM 225 Barnes TTSX?

[338 dude]

Well I ran across these bullets in my local drug store believe it or not they have a decent supply of reloading materials, so thought I would try to get on the Copper bandwagon give me an idea on where to start will be using reloader 33 or Retumbo

 

[Mark37082]

Wow! Local drug stores with 225 TTSX in stock. Now that is true diversity in action.

 

[338 dude]

Wow! Local drug stores with 225 TTSX in stock. Now that is true diversity in action.

I don't know what they have on their website but check out Duren Drugs in Waynesboro Tennessee

 

[338 dude]

They had two boxes of 156 burgers I was going to purchase those but I already have several boxes so I thought I would give the all coppers a try

 

[Willys]

https://www.longrangehunting.com/threads/338-lm-barnes-225-ttsx-and-h1000.153797/

I've been lights out with rl25 with those.

 

[Glenn Tullius]

They had two boxes of 156 burgers I was going to purchase those but I already have several boxes so I thought I would give the all coppers a try

Where are you getting the 156's? I can't find any anywhere!

 

[Glenn Tullius]

I don't know what they have on their website but check out Duren Drugs in Waynesboro Tennessee

I see nothing on their website.

 

[rbTanzan]

Your starting load may be guesstimated from your previous loadings for that rifle.
What kind of muzzle energy have your previous loadings been producing? 4400ft-lb, 4600ft-lb, 4800ft-lb?

Aim at something a little below. Check out manuals and data like Hodgdon.com and Barnesbullets.com.
Clean your barrel well (sometimes copper-bullets are less-forgiving to barrel fluctuations),
and start working up,
looking for an accuracy node in the 3000-3100fps range.
(e.g., a 225gnTTSX at 3000fps produces approximately 4500ft-lb.)

For example, if I guesstimated that 99gn-102gn Retumbo or RL33 would land "in the zone", then I would start with a single 97gn and 98gn to be used as foulers and chrono-ed to make sure there are no wildly excessive velocities. From there it is just careful loading, careful shooting, and interpreting results.

(Disclaimer: I have used the 225gn TTSX in several 338WMs. It is a good bullet and pretty easy to work up loads with. Use a chronograph.)

 

[jimbires]

if I were doing this in my Lapua ;

with RL33 , I'd start at 101 grain , and work towards 107 grains 114% case fill at max
with Retumbo I'd start at 95 grains , and work towards 101 grains 115% case fill at max

both powders will be compressed .

RL26 would be another good choice , not compressed .
with RL26 I'd start at 88 grains , and work towards 94 grains 100 % case fill at max

 

[338 dude]

I see nothing on their website.

Well take a chance on me I promise you it's there the owners are target shooters

 

[338 dude]

Where are you getting the 156's? I can't find any anywhere!

I left two boxes sitting on the shelf at Duren Drugs in Waynesboro Tennessee

 

[338 dude]

https://www.longrangehunting.com/threads/338-lm-barnes-225-ttsx-and-h1000.153797/

I've been lights out with rl25 with those.

Well I tried reloader 26 to stretch out my Retumbo and reloader 33 ,I gave it a shot (lol)and it is looking very promising so far. I ran into pressure at 92grns 3240 ft./s in my rifle

 

[338 dude]

https://www.longrangehunting.com/threads/338-lm-barnes-225-ttsx-and-h1000.153797/

I've been lights out with rl25 with those.

I ended up trying reloader 26 things are looking good so far!

 

[338 dude]

if I were doing this in my Lapua ;

with RL33 , I'd start at 101 grain , and work towards 107 grains 114% case fill at max
with Retumbo I'd start at 95 grains , and work towards 101 grains 115% case fill at max

both powders will be compressed .

RL26 would be another good choice , not compressed .
with RL26 I'd start at 88 grains , and work towards 94 grains 100 % case fill at max

That's great advice Jim you were pretty much right on the money and I appreciate it!