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Here is some info from my Labradar and ballistics calculator based on an .835 BC. I wish that I had captured the velocity at 125 yards for additional trending. Obviously not quite .835.......but within 3 FPS at 75 and 100 yards

338 RUM. Have tried Retumbo as well! 92 grains produced 2815 FPS. Montana Rifle Company 338 RUM 26 inch barrel

I have had a chance to play with these new bullets over the last 2 weekends. Out to 1200 yards today! Not having a starting BC I just used the RDF 300 grain that populated into my ballistics calculator. Which had a G7 of 428. I am getting 2815 FPS using RL33 and a long 3.750 OACL. That...

Hornet, I have been using both bullets over the last several months........ I had to try the Hornady after running low on the Nosler. I am shooting a Montana Rifle Company X2 with a 26 inch barrel. I have 3 load combinations that have had great success. Retumbo 93.5 grains 3.635 OAL WLRM...

hse11, That hits close to home. I ordered a new 338 RUM about 4 months ago thinking the same thing. Just did not think it was possible to get enough juice out of the win mag. Of course the RUM should be good for 2950-3000!

Hunter2011, The blems were purchased through SPS. I was surprised at the variance as well. I think that you are in for a surprise regarding how much velocity you might get with the RL17......but watch the upper end. I was happy at 70.5 grains.....until I tried the blems. My cousin was at...

Load warning***** I wanted to share some additional data on my load development for the 338 win mag and 265 ABLR. I had worked up to 70.5 grains of Rl17 and velocity was ranging 2808-2812. My group was under .75 at 200 yards.......so very happy. I had just finished up with my 1st box of...

Nosler brass. Average weight of brass was 210 grains. Cousin’s brass weighed 235.......so we did not go as heavy with his powder. WLRM primers 3.34 O.A.C.L. Rl17 Similiar load has been shot in 3 different guns now without any signs of pressure.......but use due diligence and start out low. I...

We did some additional testing with the 265’s today. Set up a steel target at 550 yards and went to work. Direct hits right out of the gate. The 70 grain load was at 2775 FPS. .....69.5 came in at 2754. This was from a model 70 with 26 inch barrel. My cousin worked up a similar load for his...

Happy Thanksgiving! I had a little time this morning before starting the turkey. Loaded up a few more rounds for the 338 win mag, Rl17, and the 265 ABLR. I had worked up to 69.5 grains last weekend and decided to push another 1/2 grain to an even 70. Might be a “pet” load at this point...

26 inch barrel length Winchester model 70 extreme weather Rl17 has been very temp stable in my rifle Used H4831sc for years with the win mag......but could not get to the published velocity of 2780 before pressure signs. At 71.5 grains I ran into a sticky bolt. I had read a few posts of...

Hunter2011, Rl17 is working very well in my 338 win mag with the new bullets. My existing load with the 250 accubond was 69.5 grains with a velocity of 2825. This was load was worked up from a starting load of 65 grains and has not shown any pressure signs in 5 different rifles. Received my...

Thank you for the information. Bullets and gun will probably arrive about the same time. I am really looking forward to putting the new package all together.

I am a new member looking for some ideas for the new 338 long range accubond bullet. After 25+ years of shooting a 338 win mag I found myself ordering a 338 RUM on the Montana Rifle platform. I am currently getting 2825 fps with the 250 accubond with .5 MOA, and have had some great results on...