It has been a roller coaster ride trying to get a load for my 300 win. I had a load for 200 gr Accubonds that shot well but was slow. The last couple range trips have yielded mixed results. I thought I had a decent 180 SGK load I loaded a few and tweeked a few and went to the range last night. I also loaded a few 200 gr Accubonds w/RL22 just for fun. My groups for the 180's were awful in the 2"+ range, these were loads that shot 1" or under a week ago. My last three shots were the Accubonds, 3 shots outside to outside were .745". I have said the hell with it I am shooting the 200 gr Accubonds at everything. I just don't know why the 180's are so eratic, or is it me? I felt I shot as well as I could, I tried to keep uniform pressure on the rifle, never moved it from the bags. Are the 200's just more "forgiving"? Do the 200 inherently shoot better in a shorter barrel? ( mine is 22")I am stumped. But I am going to use them, I am ordering more today. All comments welcome. Thank you.

I've only followed bits and pieces of your 300 Win experiments, but I think I mentioned before that you cannot prove anything with one group. Even three groups doesn't prove much. The more groups, the better.

My suggestion is to go by averages and don't get excited about one good group or one bad group.

I dunno if it is you, but I for one certainly am affected by recoil, and can't shoot a hard kicking gun as consistently as I can shoot a 22.

During long bench sessions, I often alternate between a 22 and a hunting rifle. Shoot two or three groups with the hunting rifle and set it aside to cool. While it's cooling, break out the 22. If I am on the verge of flinching, the 22 will set me at ease and restore my confidence.

Chain,

I feel your pain..........except for mine was inflicted by 180 grain Scirocco II's.

Nothing you will ever shoot will know the difference between what you want to be shooting and what you are shooting. If you hit it right, there is nothing on the continent that will walk very far with that combination.

If you are like me, it just means you get to tinker more when you get a chance.

Also, wasn't your previous load for the 200 grainers with H1000? How did these RL22 groups do for velocity?

My last load was with H 1000 but I didn't like the velocity. I tried RL 22 last night just to see if it would group well. i didn't take the chrono out , it was raining out. I am going to load some more with RL 22 and increase it a bit and check the velocity. My 300 win doesn't have very bad recoil, I had a longer heavier syn stock added with a mercury reducer in it and it has a limbsaver pad on it. I was pretty sure I had good holds last night. Maybe it wasthe rain?

How many grains of RL22 were you using?

I think it was 70 last night. I don't have my book in front of me. Do you have a max on the this powder? Thanks

I don't have it with me right now, but I will be going home for lunch in a little while. I will look it up and let you know.

Thanks I was loading 76.5 of H 1000 I think max is 79. I don't have a max for RL 22 and the Accubonds. My Nosler manual doesn't list the Accubonds.

74.0gr of RL22 gave me under 1/2" 5 shot groups with 180gr Accubonds and the next 0.5gr size up (74.5) started to spread out again. The 200gr were not too far behind. Cant remember the load data off hand for the 200....I'll get them for tomorrow.

Mine doesn't either, but it does list the 200 grain Partition and the guidance from Nosler is to go ahead and use the same data.

Anyway, I just got back and the data for RL22 and the 200 grain Partition is:

Max: 72.5
70.5
Min: 68.5

Looks like you are right in the ball park. I'm willing to bet you are getting a lot better velocity than with the H1000 load. It will be interesting to see if the load continues to group consistently.

Could be a real winner.

I've never had a lot of luck getting good velocity out of H-1000. I have had better luck with Retumbo which has a similar burn rate and applications as does H-1000. It might be worth a try in a 300 Win and 200gr bullets............DJ

From talking to folks in the know (custom rifle builders, etc) a lot of times, the 300 mags will show a distinct preference for either 165 and 200 grain bullets OR 180 grain bullets, but usually not all three. I have had three 300 wins, one 300 Jarrett and two 300 RUM's and each one displayed that trait! Most liked the 180 grain loads. My current RUM likes the 180's but I wanted to try the 200 grain Accubond on Elk last year. It gave decent performance with the 200 gr AB (1", where the 180's consistantly group 1/2" or less) with RL-25 powder. My all time favorite powder with all 300 mags is RL-22, but it did not like the 200 gr AB, whereas RL-25 did. Velocity suffered with RL-25, but I had to try the bullet on elk. Took my best 6x6 to date, but was not as satisfied with the AB as I was with partitions and TBBC's for what its worth.

my two cents worth.

Good luck!

Still working with that 300 win mag and 200 grainers?

I have recently shot the 200 gr Accubond extensively with both RL22 and H1000:

H1000
77.8 gr / 1 1/4" / 2886
78.1 gr / 1 1/8" / 2882
78.4 gr / 7/8" / 2896
78.7 gr / 5/8" / 2899
79.0 gr / 1 3/8" / 2916
79.3 gr / 1 1/8" / 2900

RL22
71.3 gr / 2" / 2861
71.6 gr / 7/8" / 2864
71.9 gr / 3/4" / 2886
72.2 gr / 1 1/8" / 2889
72.5 gr / 1 1/8" / 2949
72.8 gr / 1 1/2" / 2949

I have loaded up to 74 gr of RL22 and that is approaching max. I have loaded up to 79.3 gr of H1000 but others here have loaded higher.

There seems to be a node of accuracy around 2900 fps with the 200 gr Accubond in my rifle.

I've got one more set of loads ready to go with 200 gr Accubonds and 200 gr TSX's. They are identical loads of 72 gr RL22 and 78.7 gr H1000. They should both shoot around 2900 fps and it will be a test between the Accubond and the TSX.

Thanks for the info Guys. My rifle seems to love Accubonds either 180 0r 200. I have had decent luck with 180 and 80 gr of H 1000, but I am trying to economize and shoot what I have on hand. I can always buy a box and load them up prior to leaving for MT. Thanks for all the input .