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190 and 210 Berger Loads for a .300 WM

Tavis

Private
Minuteman
Feb 1, 2009
17
0
57
Leadville, Colorado
Looking for any load info that you guys might have out there on the 190 or 210 grain Berger's in a .300 WM. Working them up for a 26" barreled, Remington XCR LRT. In my old .300, I was shooting bullets from 150-180 grains, but wanted to try some of these bullets with better BC's for long range targets. Have IMR4350, H4831, IMR 4831 and RL22 handy. Thinking I might need to get some H1000 or Retumbo for the bigger bullets, but haven't found them in any of the local gunstores lately. Thanks!
 
Re: 190 and 210 Berger Loads for a .300 WM

Try VV N165 72gr max load, 210 bergers, Fed 215m primers, extremely accurate. This is the only load I shot for competition sorry I do not have any for the other powders.
 
Re: 190 and 210 Berger Loads for a .300 WM

I've been shooting 208's with 74.5 gr. H1000 and CCI Magnum primers. Pretty accurate.
 
Re: 190 and 210 Berger Loads for a .300 WM

375 rgr, what kind of velocity are you getting? Don't have that powder, but might try it out.

Oh, did find about a half can of 7828 here, too.

From my reloading books, looks like I ought to try the RL22. Will probably start there with the 190's.
 
Re: 190 and 210 Berger Loads for a .300 WM

Looking forward to seeing what you come up with. I will be trying a few loads with RL22 and Federal 215's with the 190's and 210's. Try and get them loaded up and to the range this weekend to see how they shoot. I'll post my results back here as well. Hopefully I'll get good results with the RL22. Planning to go on a barbary sheep (aoudad) hunt next week and would like to use this rifle.
 
Re: 190 and 210 Berger Loads for a .300 WM

Use the RL22. I was getting 2970fps from my 26" 300WM with the 210s and 2950fps from the 208 AMAX. Haven't shot the 190s in years but RL22 will work with them too.
 
Re: 190 and 210 Berger Loads for a .300 WM

Rob01 - If I can get those kinds of velocities out of the 210, I will probably just shoot the 210 also! That is gettin' em up there!
 
Re: 190 and 210 Berger Loads for a .300 WM

I'm getting 2950's out of both the 208 A-Max, & the 210 Berger with 77.3 gr Retumbo. My pills are Moly'd tho.
 
Re: 190 and 210 Berger Loads for a .300 WM

Does the moly make much difference?

I have tried some moly bullets in the past and didn't like the cleanup time. Seemed to really make it tough to get the barrel clean. Interestingly, I work at the Climax Molybdenum Mine and could probably get a lifetime supply of Mo to moly coat my own. Just not sure if it makes that much difference.

2950 out of the 210's would be great! Hopefully I can get there with my rifle and load with adequate accuracy, SD, & ED!
 
Re: 190 and 210 Berger Loads for a .300 WM

It will allow you to use more powder, & get higher velocity. It also lets you shoot more between cleaning. Some love it, some hate it. Up to you.
 
Re: 190 and 210 Berger Loads for a .300 WM

The long magazine in that Remington is really nice and allowed me to seat the bullets out to the lands and still feed throught the magazine. I was able to seat the bullets out to 3.615 and just touched the rifling at 3.610 in the chamber.

Finally got a little break in the weather yesterday and it got pretty darn nice! Up to around 31oF and no wind! I shot 3 different loads with the 210's and 190's. Not able to set up the crono yesterday as the snow is about 3' deep in front of the shooting house. Will have to take a shovel out there and dig out a hole for it. Maybe this afternoon, if the weather holds.

My best two loads were: new Win Brass trimmed to 2.610, primer pockets trimmed, Fed 215 primers, 73 gr RL22, OAL 3.600 (.010 off the lands). 5 shot groups.

The 190's showed promise with the first 3 shots @ .484" and 5 shots @ 1.413". The first 3 were touching and the last two were touching to the right of the first 3. May have been me.

The 210's also showed promise with 3 shots @ .440" and 5 shots @ 1.860". The first 3 again had me getting excited, only to loose some of that excitement with the 4th and 5th shots. Again, it may have been me.

I did notice some very fine hairline cracks ahead of belt on some of my cases. Weird thing is that I noticed it on the 210 gr bullets @ 72.5 grains and one on the 190 gr bullets @ 73 grains. I did not see it on the 210 gr bullets at 73 grains of RL22 which should have been higher pressure. I'll check the inside of those cases to see if they are separating. Wondering if that lot of brass OK or if I need to back off the seating depth a little more?

Any suggestions?

Planning to load up some more this morning and shoot again this afternoon.
 
Re: 190 and 210 Berger Loads for a .300 WM

My 210 loads were doing that too, but only after the 2nd reload. I have backed the powder down .5gr, & they seem to be fine now. Still getting 2941 for the Bergers, & 2968 for the A Max. I have the A Max seated deeper, with more jump than the Bergers, but they both print the same Zero @ 100 yds, & have the same dope all the way out to 1100 ysd.
 
Re: 190 and 210 Berger Loads for a .300 WM

I am loading the Berger 210 at 80.1gr h1000. Fed 215m primers. Winchester brass. I did not notice any difference between the regular and moly. I am getting 2980fps out of that load. I do not have my C.O.L in front of me, but I am loading them long for an Armalite AR30.
 
Re: 190 and 210 Berger Loads for a .300 WM

Had some wonderful weather up here today - got up to 50! Summer-like, even.

Set up the crono and found a couple of decent loads for the 190's - the best was 73 grains RL22, WW brass, Fed 215. 5 Shot group was .718", Vel. 3033 fps, SD 12.2, ES 25.3. First 3 were looking really good at .29" and the last two were touching just out of the group.

The 210's with the same load printed 1.858", but the first 3 were .44" and I may have pulled a couple. Vel 2947.6, SD 14.9, ES 39.

Had very similar results with the 190's and 74.5 grains H4831 - Vel. 3041.1, SD 11.5, ES 28.9.

Did not see any of the cracks above the belt today and this was the second firing of that brass. Wondering if there were some defects in some of them. Planning to cut some of those brass from yesterday to see what's going on inside.

Still a new rifle with a total of 53 rounds down the barrel after today's shooting. Should be able to refine the loads a bit and get them to tighten up.
 
Re: 190 and 210 Berger Loads for a .300 WM

I have had the same hairline cracks with Winchester brass on a variety of 300 WM loads. Most occured the first time the brass was fired. It occured on both max loads and lower power loads with bullet weights from 155 gr to 208 gr. A very experienced loader I shoot with suggested it was poor quality on the brass since it was not a typical casehead separation. I tossed them, better safe than sorry when you are lighting of 75 grains of powder that close to your face.
 
Re: 190 and 210 Berger Loads for a .300 WM

I was also under the impression that my cracks were due to inferior brass. I have some Winchester brass from several years ago, & they have no signs of the cracks. But a bunch of my newer stuff has them. I just toss them as I come by them.
 
Re: 190 and 210 Berger Loads for a .300 WM

210 Bergers loaded 8 thou into the lands (3.6"+/- OAL). Nosler brass, 73.8-74.3grs of RL-25 and 215m primers runs 2950fps out of my TRG. This has been a very accurate load for me and very consistant over the chrono.