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Rifles, Reloading, Optics, Equipment
Reloading
Primer question
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<blockquote data-quote="farout" data-source="post: 748072" data-attributes="member: 39061"><p>I have used magnum primers in my 25-06 before. You would need to back off you load and work up again though just as with any other primer change. Mag primers tend to work in a 25-06 because the 25-06 uses a long column of slow powder, so it is sort of a mini-mag in that way I guess.</p><p></p><p>You can use the chart below to see how you CCI mag primers compare to whatever standard larh rifle primer you are using.</p><p></p><p>++++++++++</p><p>Primers are not measured in "burn rate", but by their "Brisance".</p><p>Brisance - is a measure of the rapidity with which an explosive develops its maximum pressure</p><p></p><p>Here are the results of a test done to determine the brisance of primers. The testing was apparently done with a home made ballistic pendulum, which left a lot to be desired. So, don't take this as gospel but as a rough indicator. It does show there are great differences in primers</p><p></p><p>RIfle Primers</p><p>Brand/type_________Power Average___Range____Std. Dev</p><p>1... Fed Match GM215M___6.12______ 5.23-6.8_____.351</p><p>2... Federal 215 LRM _____5.69______ 5.2-6.5 _____.4437</p><p>3... CCI 250 LRM_________5.66______ 4.5-7.4_____ .4832</p><p>4... Winchester WLRM____ 5.45______ 5.1-6.0 _____.2046</p><p>5... Remington 9 1/2M LR _ 5.09 _____ 3.5-6.75 ____.6641</p><p>6... Winchester WLR _____ 4.8 ______ 4.1-6.0 _____.4300</p><p>7... Remington 9 1/2 LR __ 4.75 _____ 3.7-6.25 ____.5679</p><p>8... Fed Match GM210M __ 4.64 _____4.0-5.6 ____ .3296</p><p>9... Federal 210 LR ______ 4.62_____ 3.7-5.5 ____.3997</p><p>10.. CCI BR2 ____________4.37_____ 4.0-5.0 ____ .2460</p><p>11.. CCI 200 LR __________4.28 ____ 3.8-4.8 ____ .3218</p><p>12.. KVB 7 LR Russian_____ 4.27 ____3.8-4.8 ____ .2213</p><p>13.. Rem 91/2 (30 yrs old)_ 4.16 ____ 3.8-4.8 ____.3427</p><p></p><p>Pistol Primers</p><p>14 Rem LP ___________4.47_______ 3.2-5.6 _______.5171</p><p>15 KVB 45 LP Russian __3.89 _______3.3-4.2 _______ .2232</p><p>16 CCI 300 LP________ 3.18_______ 2.7-3.5 _______ .2406</p><p>17 Federal 150 LP _____3.11 _______2.6-3.5 _______.2090</p><p>18 Fed Match GM150M_ 3.05 _______ 2.6-3.7 ______ .2299</p></blockquote><p></p>
[QUOTE="farout, post: 748072, member: 39061"] I have used magnum primers in my 25-06 before. You would need to back off you load and work up again though just as with any other primer change. Mag primers tend to work in a 25-06 because the 25-06 uses a long column of slow powder, so it is sort of a mini-mag in that way I guess. You can use the chart below to see how you CCI mag primers compare to whatever standard larh rifle primer you are using. ++++++++++ Primers are not measured in "burn rate", but by their "Brisance". Brisance - is a measure of the rapidity with which an explosive develops its maximum pressure Here are the results of a test done to determine the brisance of primers. The testing was apparently done with a home made ballistic pendulum, which left a lot to be desired. So, don’t take this as gospel but as a rough indicator. It does show there are great differences in primers RIfle Primers 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 1/2M LR _ 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 [/QUOTE]
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