338-300 Norma Improved 35 degree

[tom]

I new I should of sold that thing while it was sitting here in my gun room. Stimulus money !!

Thanks for housing the big girl!

Tom

 

[MTlager]

I give her a good scrubbing with a special brush !!!

 

[tom]

I give her a good scrubbing with a special brush !!!

I wasn't going to ever clean that fireforming barrel again, thanks !

Tom

 

[Alex Wheeler]

Tom has shot the smallest group at 2000 yards I know of. 5 shots, 12". Thats what has to be beat. I have no doubt it will be. He had one group with 4 in 5" or so. The 300 shoots slightly smaller at 1k than the 338 so far. But we dont know at 2k. A few of us will find out this year. This 2k thing is fun, theres a lot to be learned.

 

[tom]

He had one group with 4 in 5" or so.

Here it is.... it's actually good the 5th one didn't fall in there, I would've retired lol.


Tom

 

[onlyfineknives]

This is good info Tom. It really gives a good visual for how a bushing effects poi stability. I dont think guys realize how much a bushing can widen a window of tune. Even though this is a .338, it plays out similar in every other case. Great stuff.

Can you elaborate on the effects of the bushing on tune?
Thanks

 

[Alex Wheeler]

Can you elaborate on the effects of the bushing on tune?
Thanks

In my experience its similar to what a primer will do. If your have the wrong primer or bushing you can still find small groups but the the groups next to it get big in a hurry. With the right primer or bushing the out of tune groups stay much smaller.

 

[onlyfineknives]

Thanks

 

[rhovee]

Went and tested N565 in my 338 NMI. Shoots very good.

 

[Ledd Slinger]

Went and tested N565 in my 338 NMI. Shoots very good.

Nice, but 3 shot groups can be deceiving at 100 yards. Need to run it at long range with a ladder before making any conclusions.

Ive been deceived enough times in the past that I don’t test anything at 100 anymore.

 

[rhovee]

Thanks. It’s hard shooting long distance where I live. I get them close at 100. Take to 300. Then 1k when I meet up with Alex and Tom at DC.

 

[tom]

Thanks. It’s hard shooting long distance where I live. I get them close at 100. Take to 300. Then 1k when I meet up with Alex and Tom at DC.

That is more than once though, so hopefully they group out at distance.

Tom

 

[rhovee]

Without side railing the thread to much. I have only got into trouble with load development with i get fluke great groups. Shooting increasing powder charges at horizontal dots either at 300 or 100 shows me where the POI remains constant over powder increase. I know it won't be the absolute best at 1000. But it will be close.

 

[tom]

Without side railing the thread to much. I have only got into trouble with load development with i get fluke great groups. Shooting increasing powder charges at horizontal dots either at 300 or 100 shows me where the POI remains constant over powder increase. I know it won't be the absolute best at 1000. But it will be close.

That's a real nice weight bullet for a carry version of this chamber. Definitely bring it along and see what it does at 1k. I tried damn hard to get the 265 ablr to shoot, but they just refused my tricks. Several other ablr shoot extremely well, and lots have been recovered from elk and deer with perfect performance.

Tom

 

[rhovee]

Lonnie did have some great success with the ABLR this year

 

[tom]

Lonnie did have some great success with the ABLR this year

Yeah, but not that 338 POS lol. I haven't met anyone that could tune them yet!

Tom

 

[tom]

My buddy @Torge helped me out with some 210m, so end of the month I may load some up and shoot some groups at Deep Creek.

Tom

 

[send it]

Looking real good. I just chambered another 300 Norma imp for myself today. 245s and N570 is shooting well for Hovee at 3000 fps, so I may have to try them. I am surprised to see those 285 Hornadys shoot that small though.

Alex, i read somewhere in this thread that there is am off the shelf dies for the .338 norma improved round. Where do I find that. I am currently building .338 norma improved and dont know what to do about dies. any help would be appreciated!

 

[Alex Wheeler]

Depends on your chamber. You could get a 300 norma imp die from bullet central and just open up the neck and use 338 bushings if its my chamber. If its not then you need to get a custom die made.

 

[WVHick]

@Alex Wheeler

I know you made public the 300 NMI reamer through JGS. Can we get this one made public? I really want a reamer hahaha