I just got back from the range with my new 300ultra and am very pleased with the results.Using a 180gr bullet and reloader 25 all loads from 93gr to 96gr produced groups of 3/4" or less.I shot three groups of 95 gr of r-25 and they averaged .490".Velocity with 95gr of r-25 was 3395fps.I also tried imr7828 which averaged just under 1" and h-1000 which produced groups averaging just over 1".So much for the people that insist that the ultramags can't be shot accurately.

i have a 7 mm RUM on a 40x action that shoot very good groups for me.i think someone who is a better shooter could do a lot better though. i only shoot three shots groups and wait till the barrel has cooled before shooting the next shot. and have shot dime size groups at 100 yards. my 300 RUM doesn't shoot as well but isn't in the same class of gun either.but the trick seems to me to let the barrels cool down after shooing a group of three.i run a patch with butch's boreshine through after each group,followed by a dry patch.
muskrat
fight to keep your guns!!!! by voting and money!!

Congratulations on your new rifle.

I imagine some shooters may not shoot the RUM's as well because of the added recoil. But the .300 RUM, .338RUM and other RUM's are already being used for long range target shooting where accuracy is very important.

stubblejumper -- I loaded a 200 grain North Fork bullet for a buddy to use in his .300 Ultra Mag last year for an Elk hunt. He got several near one hole groups at approx. 3000 fps. He got a huge 5X5 with a 420 yard shot. He was very pleased with his rifle, load, bullet, and himself. It takes all those to make an accurate combination. My favorite saying is, "a few shots does not an opinion make". Congratulations on your new rifle. Good shooting.

stubblejumper, Congratulations, those are impressive results. Mind you, I'm not surprised seeing as how you're an Alberta boy and all!

Stubblejumper, what kind of rifle was that out of? I have M700 BDL-SS in 300RUM and I just bought some RL-25 to try in it with 180gr Partitions. I've been trying some 4350 (the Nosler book says this was their most accurate powder) but my groups never got under 1.5", and most of the time they stayed at 2 or above. I'm hoping this powder does better for me. Did you also seat your bullets close to the lands, or did you go by SAAMI specs?

Swathhopper- How much is a fluted Pac nor Barrel installed at Prairie Arms? I have been considering using this operation and would appreciate an idea on costs of this latest project.

Sounds like a lethal unit, a bit heavy for my taste, but accuacy is definitely there.

Regards,

BR

Battleriver-You would have to contact prairie gun works to get their latest prices or try their website at www.prairiegunworks.com
Jethro-4350 is way to fast for the 300ultramag and 180gr bullets.You might try imr7828 or h-1000 if r-25 does not work for you.Partitions do not shoot well in any of my rifles either.

Stubble jumper I was wondering what model your Ultra was.

I have the LSS and with 95 grains of reloader 25 I get pretty consistent 1 inch groups but I have done better. I flinch alot more now than I did a year ago shooting it.

Good rifles though.

Markus -All of my hunting rifles are custom built on trued and lapped stainless 700 actions.They all have sako extractors installed and are pillar bedded into mcmillan stocks.All have 26" match grade barrels with my two 300ultramags wearing fluted pac-nors and my 7mmstw's wearing a fluted kreiger and a schneider.

jethro, I live in Westminster too for the time being. I got a good gunsmith, named RA Browns off of 31. Might want to take it too him. Maybe check the bedding out.

Also, I noticed, I have to load my bullets deep to get good groups with my old BDL. Like load them 3.55" COL. But with my newer Krieger barrel, it likes them at 3.6". Go figure.

But when I had that BDL a long time ago, I had horrible groups. So Brownie, rebedded it and put pillars in, took out the forearm pressure and recut the crown. I was then able to get 1" groups regularly. But before, I couldn't do anything with it. Also, I had to let that cool every 2 shoots about 10 min.

Do you shoot at Hap Baker?

Thanks for the advise BC. I'll see how the RL-25 shoots first. If it's still crap, I'll run it in to Mr. Brown. I've been down his place a few times with my 17 Rem. I haven't had anything major done, but he seems to do good work.
I'm up at Hap Baker nearly every weekend and sometimes during the week since it stays light longer. During the week is much better (less people). Where are you in Westminster? I'm just north of the county airport off Bachman Valley Rd.

I load all of my 180gr loads to an overall length of 3.670".In one rifle this is .050" off the lands and in the other it is .220" from the lands.Yes that was .220" and both rifles average 1/2" groups.

[ 06-04-2003, 08:30: Message edited by: stubblejumper ]

Thanks alot Stubblejumper. Sounds like you are getting a small arsenal going there.

Well, I put some rounds loaded with RL-25 down range today with the 180gr NPs. I started at 93.0gr and worked up to 94.5gr in 0.5gr increments. It was a bad start with everything up to 94.0gr measuring well over 1.5" @ 100yds. I was getting disappointed to say the least. Then, at 94.5gr they came in considerably to form a 0.65" group, and that's with seating my bullet to SAAMI specs. Granted, I need to do this more than once, but this is very promising. I want to push up the powder charge a bit more, but I'm already starting to flatten the Rem 9.5M primers. I know the CCIs have harder cups, so I may try them. One thing I did notice though, the barrel heats up quicker with RL-25 than 4350. After a 3 shot string, the barrel was cooking. You really have to watch that with these guns.

Jethro-I have had the best luck with federal 215 primers on large capacity cases such as the ultras and stw's.

"I know the CCIs have harder cups, so I may try them"

I got a chuckle out of that one!!!!

Can you explain how a harder primer cup relieves pressure?

I might vote for the opposite approach unless you are piercing primers at known low pressure loads...

Nice shooting Stubblejumper! I fell in love with the McMillan stocks after the first time . Which model are you using? I haven't broke into 3300FPS with mine yet, still working up loads.

AJ300MAG-I use the mcmillan bdl stocks on all my rifles.I tried h-s precision but much prefer the mcmillan as they just seem to fit me better.I also use pillar bedding on all rifles.

jethro, going to be up there in the morning. Hap that is. So look for the guy shootin the 300RUM? I usually try to get the 200 yard benches. Going to see if I can get my printer to my chrono working under those sheds.

Stublejumper, my hunting partner had a .338 ultra built with the H-S, I went with the rem hunter. I prefer the McMillan in a heartbeat! My .338 shoots well with just a bedding job. The .300ultra got the pillars and the bedding treatment. What barrel contour did you use on the .300 ultra's?

Al

I got that #6 and its heavy. I mean heavy. Should have stayed with the Varmit contour.

I have one #4 and one #5 and both are fluted.They shoot equally accurate.The #4 is slightly lighter to carry but the #5 is more pleasant to shoot.

B.C, my .300ultra has a #6 Lilja. I kept her at 27" and flutter her. She balances just in front of the gaurd screw when empty. I kinda like em on the heavy side. This one has ben a bear to learn how to shoot off a bench. Even with the brake she has more muzzle rise than my .338, which is a dream to shoot but also weighs a tad under 13Lbs. I was trying to hold the forearm on the .300 when bench shooting, looks like I couldn't do it with any consistancy.

My Sendero loved RL 25, but would also shoot 180gr. bullets very well with IMR 7828.
I even got the Hornady 180gr. SST to shoot under 3/4in at 100 yds.....sakofan...

Jameister, I never said the harder cup would relieve pressure. However, if you can tell me which of the two primers "shows" correctly when excess pressure is reached, I'll be happy to go with that choice. In my past experiences, the Rem primers seem to show pressure signs earlier than CCI. Does that mean CCI primers are unsafe? My guess is no. Would it be safer to use the primer which is constructed more lightly and prevents you from attempting max loads? Perhaps, but my reloading style is to get the most out of gun as possible, both speed and accuracy. If I can bump up my load slightly by switching to a different primer, I'm gonna try it. If accuracy falls off or I get additional pressure signs, then I back off. I'm sure many will think this is unsafe and some may not, but to each his own.