6.5-300 load data

[swampthing]

So I thought I had a great load worked up with us869 and 140gr accubonds. I was getting great velocity and accuracy. I just recently shot this load in warmer temps and found out how temperature unstable us869 is! My velocity went dangerously high and I lost accuracy! Back to working up a new load now. Powder is a bitch to find up in canada right now. I found some h1000 but am still looking for imr8133. Has anybody got some data to share? In case someone asks this is the weatherby 6.5-300. Thanks

 

[Bsnyder]

I’m running ram shot lrt with a 124 hammer, Hunter use this load with caution as this is worked up in my rifle- 88 grains of ram shot lrt with fed gm215 primers at a coal at 3.50

 

[Bater]

I’m running ram shot lrt with a 124 hammer, Hunter use this load with caution as this is worked up in my rifle- 88 grains of ram shot lrt with fed gm215 primers at a coal at 3.50

Have you tested LRT for temp sensitivity? I think I could deal with it if it’s about the same as Magnum. Just wish Hodgdon would release a slower Extreme series powder.

 

[swampthing]

I am off to the range with some h1000 loads today. I want to try imr 8133 but cant find any up here in canada.

 

[Nealm66]

I’ve got a really good load with 8133 but should have bought 8lbs. Now it’s unavailable. I’ve got some lrt but Im holding off for either the return of 8133 or I will try Vihtavuori N570.

 

[wind gypsy]

Have you tested LRT for temp sensitivity? I think I could deal with it if it’s about the same as Magnum. Just wish Hodgdon would release a slower Extreme series powder.

Slower than h50?

 

[Bater]

Slower than h50?

Yeah I think so, H50BMG seems even a touch fast in my 26N which is roughly the same as the 6.5-300. US869 is about perfect but not temp stable as noted. Just my experience

 

[swampthing]

I’ve got a really good load with 8133 but should have bought 8lbs. Now it’s unavailable. I’ve got some lrt but Im holding off for either the return of 8133 or I will try Vihtavuori N570.

Do you mind sharing this load? I am not finding much for data

 

[swampthing]

I shot my backcountry with h1000 using 140 nosler ab and 142 ablr bullets today. Speeds were in the 3100s and poor accuracy. I will try again with a bit more powder.

 

[Nealm66]

Do you mind sharing this load? I am not finding much for data

It’s out in my gun room, I’ll put it on here in the am. I’ve got two loads for it, can’t remember what the other one was but it was for 130gr eldm’s. I think it was with 7977

 

[Nealm66]

I got my starting load off the Hogdon reload site. It was a different bullet but was same grain and was close enough to start.

 

[Bsnyder]

I haven’t tested it. I took hammer bullets word that it was more temp stable than 869

 

[Nealm66]

I had pressure problems with 869 in warmer temps as well. I wonder what weatherby cuncocts up for powder. It’s spherical but seems almost immune to temps. Very accurate in my rifle as well, just too spendy for very much shooting

 

[Nealm66]

Ok, I have 4 shots inside a 1” square with 77.2 of 8133 with the 143 eldx and not much difference with a 10 shot group to proof but never got out to chrono for speed. No pics , I keep a notepad and draw my groups for reference. This was in 60ish temps. Vanguard 2 rifle with a brake installed. There was decent groups above and below so that’s how I work up a load. I’ll probably wait till some more 8133 shows up then check velocity at different temps of a day. I’m on the coast so pressure comes early

 

[swampthing]

I tried some more loads with H1000 and the 140ab and 142ablr again yesterday. I got the 140s to shoot 1" and the 142s to 2". Got my speed up to about 3350 with the 140s using 79 grains. I will stick with this load for now until I can get some imr 8133.

 

[BPollard]

So I thought I had a great load worked up with us869 and 140gr accubonds. I was getting great velocity and accuracy. I just recently shot this load in warmer temps and found out how temperature unstable us869 is! My velocity went dangerously high and I lost accuracy! Back to working up a new load now. Powder is a bitch to find up in canada right now. I found some h1000 but am still looking for imr8133. Has anybody got some data to share? In case someone asks this is the weatherby 6.5-300. Thanks

i pump 91.5 gr. of us869 for a 127 lrx and 78 gr. imr 8133 for the 143 eldx

 

[BPollard]

i pump 91.5 gr. of us869 for a 127 lrx and 78 gr. imr 8133 for the 143 eldx

obviously u will need to play with seating depth wby's are finicky. with the 127 lrx 3.63" oal