"The HH neck gives the bullet a running start". An old bench guy told me that and I never forgot that description!!!
BTW the 300WM is fat and ugly next to it!!!
BTW the 300WM is fat and ugly next to it!!!
300 H&H project started
- Thread starter Mountainman
- Start date
Mountainman
Hammer Time Executive member
They LOOK fast!!!!
2Tone
Hammer Time Executive member
Now we’re talking my language! Man I’m gonna have to run to liquor store and go load up some of those.
Well made me pour 3 fingers of Jim Beam in honor of those loaded Hammers!!
Mountainman
Hammer Time Executive member
I know one thing, if number 6 tops 3700 and blows the primer I'm gonna have to start paying more attention to Joe 
2Tone
Hammer Time Executive member
My wife says I have a drinking problem and I tell her it’s not a problem it’s a solution.
Mountainman
Hammer Time Executive member
Got the stock whittled out this morning to fit the new slightly larger barrel. All that's left to do is bedding and let it cure. Kinda outsmarted myself with the sniper grey cerakote. In my little mine the stock was darker than it really is. I should have gone with gunmetal grey for more contrast.
Mount a scope in the morning and take her for a test drive
Mount a scope in the morning and take her for a test drive
Mountainman
Hammer Time Executive member
I'll load 12 rounds with light/moderate loads. Shoot 1 and clean. I do this 3 times, then I shoot 3 and clean. Usually by 6 or 9 rounds with a Bartlein barrel I'm happy with the patches. Once I have the 12 shot off I'll scrub the bejesus out of it and it'll be time to give her the reins.
Mountainman
Hammer Time Executive member
Well............that didn't go quite the way I envisioned. The break in was as expected with a moderate load of IMR4350 under 151 AH bullets. Everything they say about how smooth the 300 H&H feeds is absolutely true. Stuck the first round down in the magazine and closed the bolt and my first though was the bolt went right over top the cartridge.....nope it was in the chamber. When I went to my test loads it turns out I'm not quite as smart as I thought I was when guestimating powder charges. #1 with 75 grains of N550 was way max. Very heavy bolt and while it didn't blow the primer you can see black all around it so it came very close. Also heavy ejector mark.
It did however hit 3639 fps so Joe wasn't very far off on the velocity. Will rethink and reload probably with N555, N560 and whatever else I dream up.
Here's your pictures Muddy
It did however hit 3639 fps so Joe wasn't very far off on the velocity.
Will rethink and reload probably with N555, N560 and whatever else I dream up. Here's your pictures Muddy
Just looked at VV reload data and they show 65.8 max I know that conservative but why start
Mountainman
Hammer Time Executive member
V V load data is all but useless and the printed version should be used in conjunction with StaBall 6.5 powder for fire starter. I have more than a few loads that are 15% over their max before I find pressure. That being said I certainly would have been better off starting at 72 or 73 The upside is I certainly have a baseline from which to work.
Regards
The upside is I certainly have a baseline from which to work.Regards
Well seems you still have all your fingers so maybe stop?
That's ripping! Be curious on primer pocket! So now you can add to the pressure thread! Very considerate to show it!
That's ripping! Be curious on primer pocket! So now you can add to the pressure thread! Very considerate to show it!
