reloading a 300 Ultra-Mag
#31
Giant Nontypical
Joined: Feb 2003
Posts: 6,471
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From:
BC i have a Foul out III a little PITA to use but guns I have used it on shoot noticeably better . I seem to find it takes a couple of shots for the gun to get back to shooting like its old self though. So I wouldn';t use it right before a hunting trip. I use it on frequently used guns once a year only and the copper that comes out from some guns is absolutely frightening.
#32
Joined: May 2004
Posts: 429
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From:
Yes, it can be a PITA when you have the bore full of fluid then knock the plug out of the chamber with the rod. More than once I have not had it firmly seated. I use the system about every fourth cleaning and especially when season is over. Again, if you shoot anything with lead (revolvers, pistols, etc.), you owe it to yourself and your elbow to give it a try. It appears expensive and replacement fluid seems high but it really goes further than I expected.
#33
Joined: May 2004
Posts: 179
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From: Hampstead, Maryland
The stuff that I have been using, Hoppes Bench Rest, really did help with better groups, but I have found nothing acceptable, in terms of a load. I worked up to 92gr of RL25, pushing a 180 Triple Shock Barnes X, ignited by Federal Mag primers. This load is only clocking 3200fps @ 10 ft from the muzzle, so it is not hot by 300RUM standards. The best that I can do, is 4" groups at 200 yards. I shoot and let the barrel cool, while I print 2" groups with an old 270Win chambered Mauser. Even my M1 Rifle with iron sights will do better than 4" @ 200 yards. I don't know, maybe I need to have the bore checked out, as it could just be a bad one. I know that the throat is long, because I load right up to the end of the magazine and am still .179" off the lands. Barnes recommends beginning at .050" off the lands, but if I load that long, the cartridges will never fit into the mag! The cartridges touch the lands when OAL is 3.800". I can squeeze in 3.621"OAL and barely have the cartridges feed out of the magazine.
#34
Giant Nontypical
Joined: Feb 2003
Posts: 5,667
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From: fort mcmurray alberta canada
All guns are individuals and some are very fussy as to bullets and/or powder.I have had to try up to four or five different bullets and several powders before finding satisfactory accuracy.Other rifles seem quite happy with many combinations.You just need to keep testing different combinations if you want the best accuracy that your gun will deliver.
#35
Joined: May 2004
Posts: 179
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From: Hampstead, Maryland
Well thanks for the encouragement, Stubblejumper. I just fear that I may shoot out the barrel before I find an acceptable load! Have reloaded my own cartridges for many years, going from 222Rem on up the line, through 15 different cartridges to 7mmRemMag, and I have not had the problems hitting a good load like I have with this 300RUM. I am going to try three more recipes this week and if things do not get better, I will go back to the old 30-06.
#36
Giant Nontypical
Joined: Feb 2003
Posts: 5,667
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From: fort mcmurray alberta canada
It may just be that there is a problem with your rifle.If you do succeed in shooting out the barrel have the action blueprinted and the lugs lapped and install a premium barrel, and the accuracy will probably increase dramatically.
#37
Joined: May 2004
Posts: 179
Likes: 0
From: Hampstead, Maryland
Stubblejumper, at this point, rebarreling sounds like a good idea. The rifle is a Browning Stainless Stalker. I prefer a matt blue/black barrel. Anyone have a clue as to the general price of having the new barrel installed, plus cost of a premium barrel in 300RUM?
At last count, I had put 515 rounds through this piece, so at the very least I possess intimate knowledge of the feel and function of the rifle. The bore is most likely half done in anyway, at this point. The weight is acceptable. The scope is a Burris Full Field 3-9x50 and does a good job of light gathering. In Oct. the hunter, with whom I'd been teamed, had a failure in his rifle and I handed him mine. He took the bull at 250 yards, hitting the elk in the left flank, going away. The bullet raked up through the heart/lungs and lodged in the brisket. Not bad performance.
At last count, I had put 515 rounds through this piece, so at the very least I possess intimate knowledge of the feel and function of the rifle. The bore is most likely half done in anyway, at this point. The weight is acceptable. The scope is a Burris Full Field 3-9x50 and does a good job of light gathering. In Oct. the hunter, with whom I'd been teamed, had a failure in his rifle and I handed him mine. He took the bull at 250 yards, hitting the elk in the left flank, going away. The bullet raked up through the heart/lungs and lodged in the brisket. Not bad performance.
#38
Guest
Posts: n/a
Ok, Steve, what kinda gun is it? If its a 700 BDL with synthetic stock, what kinda of work have you had done to it? Is the barrel completely freebored? I can point you in a few different directions. Or help directly as much as I can. Let me know.
#39
Joined: May 2004
Posts: 179
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From: Hampstead, Maryland
bigcountry, my rifle is a Browning Stainless Stalker. The only thing that I have done is have a muzzle brake installed. The stainless barrel is 26" long, plus the brake. I would prefer to keep it long.


