300 win mag tests today--when a good grouping isn't good.

[thermaler]

Finally got to test my 300 win mags which are 180 nosler ballistic tip and propelled by RL22 (courtesy of big honkin jeep); ran an Audette ladder in charges ranging from 72 to 75 grs (.5 increments).

Unfortunately, the biggest range I can fire at is 100 yds--and I've managed to get adequate results before with other calibers up to 308 win. I tested 7 loads for each ladder and repeated them twice--and every shot of all loads landed within about 1 MOA in both tests. The good news 300 win mag is gonna be good with just about anything at close range--or so it appears. The bad news is I'm pretty sure I'll never find any nodes without going out to 2 or 300 yds.

[limige]

Yeah you really need to get out past 300 yrds. It makes life much easier.

Here's one I did with the creedmoor. You can see how easy it makes it

http://i41.photobucket.com/albums/e256/limige/20130701_114940_zpse8d532e6.jpg

[mattri]

There is a thread on another site about doing testing for long range shooting at 100 yards. There is a lot of talk about being able to decipher 100 yard groups to determine how the load will shoot at much longer ranges. I am not that skilled- I've seen lots of groups that shot tiny little groups at 100 but opened up pretty bad beyond say 300. In my limited experience a load thaat shoots well at 300 will shoot out to 1k.

[thermaler]

There is a thread on another site about doing testing for long range shooting at 100 yards. There is a lot of talk about being able to decipher 100 yard groups to determine how the load will shoot at much longer ranges. I am not that skilled- I've seen lots of groups that shot tiny little groups at 100 but opened up pretty bad beyond say 300. In my limited experience a load thaat shoots well at 300 will shoot out to 1k.Yeah--OWC claims that it can be done at close range but I have to hold off for now--it's just too darn expensive to load 30 to 50 rounds for testing purposes. I don't see how you can get anything meaningful out of this cartridge at 100 yds with the results I've had so far.

[big honkin jeep]

Don't burn it up too quick. I have yet to find anymore :) Really haven't had time to look or to play with the RL15 I got in trade.
It sounds like you're gonna be OK and managed to get your hands on a shooter.

[thermaler]

Don't burn it up too quick. I have yet to find anymore :) Really haven't had time to look or to play with the RL15 I got in trade.
It sounds like you're gonna be OK and managed to get your hands on a shooter.No kiddin--each round eats 72 to 76 grs! I have seen RL15 here and there--but haven't seen any sign of 22 anywhere. I switched to IMR 4831 for my next batch--LRX 175-- but I'm thinking it would be a waste to fire them at 100 yds.

[limige]

I'm looking for some lrx 175's to try in my 300 wsm. People have had great success with them.
I'm going to try either rl17 or 4831sc depending what I can find

[thermaler]

I'm looking for some lrx 175's to try in my 300 wsm. People have had great success with them.
I'm going to try either rl17 or 4831sc depending what I can findHighly recommend it--so far they seem to shoot significantly better than TSX's out of my 308.

[Jetpig]

Sounding pretty good Therm. I think the 300 is so non-peculiar on loads that you definitely have to reach out some distance to get reliable information. I was on my way to try mine out at 600m with 200g smk's yesterday but got delayed until after dark. I don't even think it is the cost of working up a good load that matters that much anymore, its the fact that when you finally get the load worked up, you can't find the replacement components (powder) to use your data.