Hey guys I need some input on a project I am doing 300 H & H

N.Y.Arnie

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NY
Hope this is not to long. I have a Remington 700 in 300 H & H Mag that was gifted to me . It has a trigger Tech diamond trigger, E M Precision 30 inch barrel (including brake) not sure of the stock make but has a aluminum chassis. Beast total weight with Sightron scope is 12 !/2 lbs. I have not begun to work a load up yet but decide to inspect first. I finally bought a borescope after doing this for 50 years. Man is that scary LOL.
Anyways I thought about rechambering because of lack of brass and cost of ammo. So upon inspection of bore with the new scope showed heavy copper wash at the exit just before the brake. Has anybody on here seen this before? Also I would like to know if any of my fellow hand loaders have an opinion on Nickle plated brass. I have never tried to use mine because of the negative comment I have heard but do to the lack of brass and the expense is it worth messing with. Any input is greatly appreciated.

Arnie
 

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Great cartridge! I'd get some good copper solvent(I like BoreTech) and give the barrel a thorough brushing. Also check for carbon ring/carbon wash. When buying once fired cases, a lot of nickel plated brass shows up for the 300H&H. While ai prefer all brass, the nickel plated cases will work well, but generally do not have the case life of an all brass case. Be sure to use sufficient lube, and very clean cases….the nickel can scratch your dyes. With repeated use of a nickel plated case….keep an eye on your necks and web area….For cracking/splitting.
 
Check some of the online auction sites. I use Hibid.com but there are others. I've been able to buy hard to find brass and components off there. No problem using nickel cases. As stated above, make sure they are clean and inspect closely after sizing, firing, etc.
Good luck, it's a great cartridge!
 
HI Arnie, I recently purchased a 300 H and H . First one ever. Pre64 Model 70, from 1949. I bought a box of 100 Rem New, unfired, but old brass. I'm loving the loading process. A classic old cartridge hunting round , to be sure. I may hunt it once but mostly it will be a bench queen. I have no intention of trying to make it shoot like a .300 Win or my .300 Weatherby Mag. I also purchased a second aftermarket Boyds stock , so I can keep the original Winchester stock, all original. Enjoy your 300 Buddy !!!
 
HI Arnie, I recently purchased a 300 H and H . First one ever. Pre64 Model 70, from 1949. I bought a box of 100 Rem New, unfired, but old brass. I'm loving the loading process. A classic old cartridge hunting round , to be sure. I may hunt it once but mostly it will be a bench queen. I have no intention of trying to make it shoot like a .300 Win or my .300 Weatherby Mag. I also purchased a second aftermarket Boyds stock , so I can keep the original Winchester stock, all original. Enjoy your 300 Buddy !!!
I think mine is a 1951, live it. The stock was already altered, bedding etc. so I had it checkered for a better grip as it's a hunter. Found that it likes 220 gr rn bullets pushed at 300 WM velocities. The three deer I've killed went down like they had been hit with Thor's hammer. And it feeds like butter…
 
My introduction to the 300 H&H came back in my days shooting competitively in the Army. Our issue long-range rifles were Pre 64 Winchester Model 70 match grade rifles chambered in 300 H&H with 10X Unertl scopes. The combination was deadly accurate but extremely punishing when shooting 1000 yards prone,:oops: even with heavily padded leather shooting coats shoulders were pretty beat up after shooting 20 rounds for record.
 
Yes Terri, the drop of the stock is way to much for me to handle, and it looks like its ready to punch your check when fired. Peep sights were very big in the 40's and early 50's . I have come to learn a tiny bit about the Three generations of the Pre 64 Winchester, and how it evolved into an excellent shooting platform for serious hunters as the concept of scopes became really popular, in the 1950. If one looks at O'Conner's three Winchesters , one can see what the "smiths" were doing to allow for the use of scopes. Including restocking all three of his rifles. My rifle came with a Lyman Alaskan scope, 2 1/2 power scope on a 3/4 inch tube. My 1949 happens to be what is called a "Transition Model " , and changes were to both the rec Receivers Tang shaping , as well as the stock design a couple of years later. I am not a collector, but just really wanted one my whole life, in 300 H and H !! I have made some light loads, using IMR 4831 and 180m Grn Hornady SST. Since the brass is unfired Rem Brass, but old, I think a fire forming session would be just fine. This rifle is just for FUN!!! Can't wait for spring. !!!!~
 
So upon inspection of bore with the new scope showed heavy copper wash at the exit just before the brake.
Yes.

1) Check if the muzzle is a tighter bore. Not much for it if this is the case.
2) 28" barrel, friction heating up the jacket by the end of the barrel. I switched to HBN coated bullets which may be out of fashion but it works for me.
 
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