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tommy_riggers
New Member
24 Posts |
 Posted - Nov 02 2009 : 16:42:34
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| With reloading components being impossible to come by, specifically primers, I was stoked to find a case of 5000 CCI large rifle primers. The question is that I reload for my 300RUM and have always used large mag rifle primers with RL-25 and 200gr NOS AB. Will there be a problem with using CCI#200 large rifle primers instead of CCI#250 large magnum rifle primers? |
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jb3179
Junior Member
USA
63 Posts |
Posted - Nov 02 2009 : 18:49:07
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| You shouldnt have major problems using the lr primers you might have to change your load a little to get the performance you are used to. When I use mag primers on non mag calibers I just adjust my pwoder alittle. since you are going the opposite way I do I would look for sings of incomplete combustion though. |
"It's a helluva thing killing a man. You take away all he's got and all he ever will have." |
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fishstan2
Advanced Member
USA
1601 Posts |
Posted - Nov 03 2009 : 01:56:13
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Tommy _riggers, it is very possible that you might have a problem (I use CCI 250's on all my magnums). There was a post on here several weeks ago about the click and boom (the delay between the trigger and the round going off and it was attributed to the primer not being hot eneough and yes it was on a 300 Rum). The long of it is you are burning around 94 to 100 grains of powder and it is "NOT" burning hot eneough and fast engough. Now, I said might!!!!. I think temperature may have something to do with it also. I would ask some people more knowledgable than me. Just giving you a heads up. Stan |
WILLIAMS, STANLEY W.
SGM U.S. ARMY
CAMP TAJI IRAQ
"SHOOT EM FROM LONG" RANGE" |
Edited by - fishstan2 on Nov 03 2009 01:57:00 |
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45colt
Average Member
125 Posts |
Posted - Nov 03 2009 : 06:52:08
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| Almost every reloading source I've read says to use magnum primers for any and all large [over 60 grains] charges of slow burning powders or any ball powders. Personally, I wouldn't even try standard primers in any cartridge as large as the RUM unless I was using a faster powder. |
"Sir you just shot an unarmed man."
"Well he should have armed himself if he's going to decorate his saloon with my friend" |
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BISCUT
Moderator
2243 Posts |
Posted - Nov 03 2009 : 07:04:39
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I shoot 90something grains of RL25 w. the 200gr Accubond in my 300RUM and feel there is no way you will ignite that amount of powder properly with any manufacturers LR primer.
Mine really like the Fed 215 and 215GM.
I tried Wolf LR MAG and their primer wont ignite it either. Not sure how hot the CCI's burn. |
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ethmoid1999
Advanced Member
USA
1968 Posts |
Posted - Nov 03 2009 : 07:09:28
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| I agree with most of the others. The RUM needs the LRM primer. I've got by with standard primers in smaller rifle cases and with many pistol loads but in this case, use the LRM's. |
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RUMlover
Junior Member
71 Posts |
Posted - Nov 03 2009 : 14:00:33
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| I recently did the unthinkable and order a box of remmy 9 1/2 M primers off gun broker. I have been waiting for backordered primers for almost a year now for my 7mm RUM. I would definately agree that you should hold out for the LRM primers on the RUM. |
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brian 0714
Junior Member
43 Posts |
Posted - Nov 03 2009 : 15:17:45
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To give some idea,the fed 215m primer was made for the 378 wea mag,because htere wasnt anything hot enough.Like some of the other posters said thats alot of slow burning powder,the powder companies
slow the burn down with deterrents.Especially inthe cold weather its even harder,I went to all fed primers,if it says magnum in the name,I work up my load with a mag primer.I would have to agree that
depending on powder,around 60 grains is a good cutoff.I think its Layne Simpson who said that he starts around that area with mag primers. |
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3006Savage
Average Member
167 Posts |
Posted - Nov 04 2009 : 11:12:08
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| With RL25 you will probably get away with the LR primers. The slow Ball powders like US869 are were you will really start to have ignition problems. I would certainly take them to range and see how they perform. You may even want to put them in the freezer and keep them frozen in a cooler on ice to remove all doubt that they will work in all weather conditions. |
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RUMlover
Junior Member
71 Posts |
Posted - Nov 04 2009 : 12:17:13
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| Savage, the RUM uses about 93+- grains of powder for the load he is referring to. I just dont think a LR primer will do the trick and may possibly be unsafe. Its always better safe than sorry in my opinion, and especially over something as simple as primers. I would like to point out that I am a NOVICE reloader, and in all the research I've done, the only thing that seems consistent is the recommendation NOT to play around with the RUM's. |
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BISCUT
Moderator
2243 Posts |
Posted - Nov 04 2009 : 18:55:32
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I've had retarded ignition and MINE was about 3/4 of a second. I was using RL25 and WOlf LR Mag primers. I imagine a LR primer would cause an even longer delay thus increasing potential for danger.
Long way to agree w. RUMLOVER. |
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jb3179
Junior Member
USA
63 Posts |
Posted - Nov 07 2009 : 20:24:59
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| Thats some good information. I will have to recant my initial opinion my only experience in this situation is using varget in a 300 winchester magnum and WLR primers, which worked fine, afer reviewing the data and opinions given im gonna go with the crowd here. Varget is relativly fast compared to what is recomended for the RUM. As for the comments about wolf primers I dont think they work worth a damn anyway I couldnt get consistent loads with them. I'll stick with winchester or federal. |
"It's a helluva thing killing a man. You take away all he's got and all he ever will have." |
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ten2six
Senior Member
USA
248 Posts |
Posted - Nov 07 2009 : 21:01:57
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Err on the side of caution...hands and faces are hard to put back on once they're off.
Stay safe....shoot straight. |
"Chances are, when we meet intelligent life forms in outer space, they're going to be descended from predators."
- Michio Kaku |
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large rifle primers vs. large mag rifle primers
