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Hi guys, what do you think about the Winchester large rifle magnum primers. They are having a good sale on them at Midway. The price has me interested, let me know what you think. Thanks, BSA.
They always go bang.
They are hotter than the Fed 215 which is hotter than the CCI 250.
I'm sure they are hotter than bosslady too, but that doesn't tell me much laugh
I used them to shoot this 3-shot group last week (100 yds), 7 WSM, 160 NAB, 48.5 grains I-4831.

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Use nothing but them for magnum loads.
When primers got short I bought 3000 of these plus some regular large rifle. Used them in .300 WSM and .300 ULTRA. They seem a little hotter than 215 as the chrono shows a little more velocity. Thier cups are somewhat harder as they dont flatten out as much as Federals. Accuracy is the same..still using them.

Lefty C
Quote
Thier cups are somewhat harder as they dont flatten out as much as Federals.


Interesting. That's the opposite of what I've found with the standard WLR, which seems to flatten at the least provocation.
Originally Posted by smokepole
I used them to shoot this 3-shot group last week (100 yds), 7 WSM, 160 NAB, 48.5 grains I-4831.

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That's some awesome shootin'!!
Kudos on the Great Group!!!
Speaks highly of your load too.
I bought several thousand a few years back for cheap. I think they're the hottest primer on the market. I also know they can be a bit smaller in diameter than Fed's and CCI's, which can make you think an okay load is "hot" due to what you perceive as an expanded primer pocket. Try a CCI and the "problem" goes away. I still load mostly WLRM's.
WLRs are what I use for most loads but sometimes with large charges of ball powder I use the WLRMs. Especially when those loads are destined to be used in sub-zero weather.
I like them.
Excellent results with them in my Mag..
Originally Posted by bsa1917hunter
Hi guys, what do you think about the Winchester large rifle magnum primers. They are having a good sale on them at Midway. The price has me interested, let me know what you think. Thanks, BSA.
...................I`ve used them for my 300 WSM and 375 Ruger with very good results, and will use them for a newly acquired 338-378 Wby.
They are 50 fps slower in my 7Mag than CCI 250's
I mostly use Fed 215s but in my heavy-barreled M-70 Laredo .300 Win Mag, I use Winchester Large Rifle Magnum primers.

Listed below is a handy chart which I found some years ago.

Ranked in order of power
Large Rifle = LR, Large Rifle Magnum = LRM, Large pistol =LP,�
Brand/type��������������� Power Average����������� Range����������� Std. Dev
1 Fed Match GM215M������� 6.12�������������� 5.23-6.8�������������� .351
2 Federal 215 LRM������������ 5.69��������������� 5.2-6.5��������������� .4437
3 CCI 250 LRM����������������� 5.66�������������� 4.5-7.4���������������� .4832
4�Winchester WLRM���� �����5.45��������������� 5.1-6.0��������������� .2046
5 Remington 9 1/2 LRM����� 5.09��������������� 3.5-6.75������������� .6641
6 Winchester WLR������������� 4.8���������������� 4.1-6.0��������������� .4300
7 Remington 9 1/2 LR��������� 4.75�������������� 3.7-6.25������������� .5679
8 Fed Match GM210M�������� 4.64�������������� 4.0-5.6��������������� .3296
9 Federal 210 LR����������������� 4.62�������������� 3.7-5.5�������������� .3997
10 CCI BR2������������������������ 4.37�������������� 4.0-5.0�������������� .2460
11 CCI 200 LR�������������������� 4.28�������������� 3.8-4.8�������������� .3218
12 KVB 7 LR Russian���������� 4.27�������������� 3.8-4.8�������������� .2213
13 Rem 91/2 (30 yrs old)������ 4.16��������������� 3.8-4.8������������� .3427

Pistol primers
14 Rem LP��������������������������� 4.47��������������� 3.2-5.6��������������� .5171
15 KVB 45 LP Russian��������� 3.89��������������� 3.3-4.2��������������� .2232
16 CCI 300 LP��������������������� 3.18��������������� 2.7-3.5��������������� .2406
17 Federal 150 LP���������������� 3.11��������������� 2.6-3.5��������������� .2090
18 Fed Match GM150M������� 3.05��������������� 2.6-3.7��������������� .2299

This is a retype after losing the original web page.� I did not put in the individual comments.� Note the spreads.� The Rem's had some very wild shots high and low.� CCI BR2 and the Fed 's were the most even of the common ones.� The new Russian were very even, but this was a limited lot and they are not widely available.
Weighing Primers: I did some test weighing and found the bench rest had virtually no variations.� Of the others, there WAS a relation between weight and power.� Those extra heavy tended to be stronger, and light were weaker.
Firing pin strength also seems to be a definite factor. Stronger hit is probably more consistent.� This has been noted by some sharps shooters when they break a firing pin.� It will still fire, but they get fliers and open groups.�
The pressure used to seat primers, pocket uniforming, flash hole uniforming, and seating depth are all factors.� Keep them all the same.
Another thing that is not in this test, but I have noted, is using a newsprint wad over the primer.� This keeps grains of powder out of the flash hole.� It seems to even out the ignition by eliminating a variable (sometimes with grains in and sometimes without grains in, or a variety of combinations).

Originally Posted by Jocko_Slugshot
I mostly use Fed 215s but in my heavy-barreled M-70 Laredo .300 Win Mag, I use Winchester Large Rifle Magnum primers.

Listed below is a handy chart which I found some years ago.

Ranked in order of power
Large Rifle = LR, Large Rifle Magnum = LRM, Large pistol =LP,�
Brand/type��������������� Power Average����������� Range����������� Std. Dev
1 Fed Match GM215M������� 6.12�������������� 5.23-6.8�������������� .351
2 Federal 215 LRM������������ 5.69��������������� 5.2-6.5��������������� .4437
3 CCI 250 LRM����������������� 5.66�������������� 4.5-7.4���������������� .4832
4�Winchester WLRM���� �����5.45��������������� 5.1-6.0��������������� .2046
5 Remington 9 1/2 LRM����� 5.09��������������� 3.5-6.75������������� .6641
6 Winchester WLR������������� 4.8���������������� 4.1-6.0��������������� .4300
7 Remington 9 1/2 LR��������� 4.75�������������� 3.7-6.25������������� .5679
8 Fed Match GM210M�������� 4.64�������������� 4.0-5.6��������������� .3296
9 Federal 210 LR����������������� 4.62�������������� 3.7-5.5�������������� .3997
10 CCI BR2������������������������ 4.37�������������� 4.0-5.0�������������� .2460
11 CCI 200 LR�������������������� 4.28�������������� 3.8-4.8�������������� .3218
12 KVB 7 LR Russian���������� 4.27�������������� 3.8-4.8�������������� .2213
13 Rem 91/2 (30 yrs old)������ 4.16��������������� 3.8-4.8������������� .3427

Pistol primers
14 Rem LP��������������������������� 4.47��������������� 3.2-5.6��������������� .5171
15 KVB 45 LP Russian��������� 3.89��������������� 3.3-4.2��������������� .2232
16 CCI 300 LP��������������������� 3.18��������������� 2.7-3.5��������������� .2406
17 Federal 150 LP���������������� 3.11��������������� 2.6-3.5��������������� .2090
18 Fed Match GM150M������� 3.05��������������� 2.6-3.7��������������� .2299

This is a retype after losing the original web page.� I did not put in the individual comments.� Note the spreads.� The Rem's had some very wild shots high and low.� CCI BR2 and the Fed 's were the most even of the common ones.� The new Russian were very even, but this was a limited lot and they are not widely available.
Weighing Primers: I did some test weighing and found the bench rest had virtually no variations.� Of the others, there WAS a relation between weight and power.� Those extra heavy tended to be stronger, and light were weaker.
Firing pin strength also seems to be a definite factor. Stronger hit is probably more consistent.� This has been noted by some sharps shooters when they break a firing pin.� It will still fire, but they get fliers and open groups.�
The pressure used to seat primers, pocket uniforming, flash hole uniforming, and seating depth are all factors.� Keep them all the same.
Another thing that is not in this test, but I have noted, is using a newsprint wad over the primer.� This keeps grains of powder out of the flash hole.� It seems to even out the ignition by eliminating a variable (sometimes with grains in and sometimes without grains in, or a variety of combinations).


Excellent feedback guys, I think I'm going to look for them at the gunshow this weekend. I'm assuming since Midway is selling them so cheap maybe the wholsale guys will have them there for about the same price. Here's the Midway sale on them incase some of you guys are interested:
http://www.midwayusa.com/viewProduct/?productNumber=175457
It's a heck of a good deal.
i found the 9.5m, 250 and wlrm all produced the same velocity in my 7mm mag and same sd. 215gm gave higher velocity and higher sd. norma manual has a chart. 215 are better than the others at low low temps.
[quote=smokepole]I used them to shoot this 3-shot group last week (100 yds), 7 WSM, 160 NAB, 48.5 grains I-4831.

Correction, that should have read 58.5 grains of I-4831.
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