Help with R8 300WM 180gr NAB RL-23 load development

This forum is for discussion of all reloading-related topics. Sponsored by Shooting Shed-UK

Moderators: deerhunter338mag, Vaughan, stokesrj

Post Reply
dhlodak
Posts: 22
kuchnie na wymiar kraków nowoczesnekuchnie
Joined: Thu Jan 03, 2013 4:28 pm
Location: Canada BC

Help with R8 300WM 180gr NAB RL-23 load development

Post by dhlodak »

Today, I have started load development for this combo and looking for opinions from more experience reloaded. Here’s my load data info:
- Blaser R8 300WM + Zeiss V8 2.8-20x56 + RL-23 + PPU brass 1F annealed + F215M primers + 180gr Accubond @ 3.340”, Redding S-Match Bushing dies, runout at +/- 0.0015”

- started with first 10 shots with powder charge from 71.0gr to 75.5gr in 0.5gr increments at 200yds (that’s the longest I can go at our range), taking breaks between shots, making sure that barrel doesn’t get too hot! No excessive pressure signs observed at max powder load and I’m not planning on going any higher than 75.5gr anyways ( I don’t think it’s necessary).
- from what I can tell there is a node at 71.5 - 72.0/72.5 gr, shots 2-3, possibly 4?(Nosler’s book has the most accurate load at 71.5gr) and then next one is most likely somewhere between 73.0 - 74.0 gr shots 5-7 with similar speeds and small vertical dispersion!
- powder charges 74.5 - 75.0 gr, shots 8-9 are very close in speed, but vertically they are almost 2” apart (could be me pulling a trigger even though it felt good as far as I can tell) - would you still consider it?
- my next session I’m planning on shooting loads - 3x 71.3, 71.6, 71.9, 72.2 gr and then also 3x 72.7, 73.0, 73.3, 73.6, 73.9, 74.2 gr, but maybe I should try this one first, since I like the speed I’m getting at around 3020 FPS?

What do you guys think? Am I on the right track or am I missing something here? Thanks.
You do not have the required permissions to view the files attached to this post.



Gamsjagd
Posts: 185
Joined: Thu Jan 11, 2018 2:04 pm
Location: New Mexico

Re: Help with R8 300WM 180gr NAB RL-23 load development

Post by Gamsjagd »

Can you get Norma MRP Powder? If you can get H1000 I have pretty good luck with that but the Norma is better.

Gamsjagd
Posts: 185
Joined: Thu Jan 11, 2018 2:04 pm
Location: New Mexico

Re: Help with R8 300WM 180gr NAB RL-23 load development

Post by Gamsjagd »

Norma 204 is also ok.

dhlodak
Posts: 22
Joined: Thu Jan 03, 2013 4:28 pm
Location: Canada BC

Re: Help with R8 300WM 180gr NAB RL-23 load development

Post by dhlodak »

I have RL-22 and RL-26 available, but no Norma! What’s wrong with RL-23? I prefer temp stable powders due to the area and climate where I hunt - Northern BC, Canada! I’ve seen other people using RL-22 with 180gr bullets with good results and I thought RL-23 would be a good options for my needs.

User avatar
stokesrj
Moderator
Posts: 5653
Joined: Mon Jun 17, 2013 12:41 pm
Location: USA
Location: Mesa AZ, USA

Re: Help with R8 300WM 180gr NAB RL-23 load development

Post by stokesrj »

I think you likely have a good node around 73 grains and would load ten rounds and shoot two five shot groups and see what you get.
Robert J Stokes

caps
Posts: 53
Joined: Sun Jan 01, 2017 4:58 pm
Location: ozzie

Re: Help with R8 300WM 180gr NAB RL-23 load development

Post by caps »

Dont know if you can get your hands on ADI 2213 powder, but I have loaded 180gr Woodleighs and 72grains of powder for my 300WM with very impressive groups. cheers

secondtry
Meister der jagd
Posts: 2135
Joined: Fri Nov 23, 2012 8:22 pm
Location: Victoria Australia

Re: Help with R8 300WM 180gr NAB RL-23 load development

Post by secondtry »

caps wrote:
Mon Jun 21, 2021 12:40 am
Dont know if you can get your hands on ADI 2213 powder, but I have loaded 180gr Woodleighs and 72grains of powder for my 300WM with very impressive groups. cheers
ADI 2213 is sold as H4831SC in North America. Previously H4831. They work the same.

dchamp
Meister der jagd
Posts: 1076
Joined: Mon Jul 14, 2014 10:42 pm
Location: USA
Location: Bakersfield, CA

Re: Help with R8 300WM 180gr NAB RL-23 load development

Post by dchamp »

I think Bob may be right. Another option to loading ten at one load may be to shoot a Optimal Charge Weight from 72.5 - 74.5. That range is the most consistent that I see.
Capture.JPG
You do not have the required permissions to view the files attached to this post.
I have never met a man so ignorant that I couldn't learn something from him. Galileo

The fact that Jellyfish have survived 650 million years, despite not having brains, gives hope to many people. sun-gazing.com

Post Reply

Return to “Reloading”