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#1
04-03-2012, 08:46 PM
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No Stupid Questions on here besides the ones Not Asked...........
IMHO because no Bullet or casing is Perfect, that is why every time I shoot a reload I measure every case and OAL after I am done, if you don't won't sit right in the mag or feed properly, and cause major problems........... 
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CBOB:0002 1905 Savage 380, 1978, 1980 DW Pistol Pacs, Severns Custom 1985 Springer 1911A1, 09 DW Marksman, S&W Model 19-6, GSG 1911 22LR. , S&W Model 29-2 Last edited by NAMVET72; 04-03-2012 at 08:49 PM. 
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#2
04-03-2012, 08:56 PM
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Lane, to my understanding... the .45acp feeds on the case, not on the OAL. OAL ( or COAL for Cartridge Overall Length) is dependent upon the bullet used. The traditional FMJ 230 gr. round nose would have an overall length of 1.260. If you were loading a JHP in 230 gr.... my manuals look for a tested COAL of 1.20 (because the top of the bullet is flattened out) Same for the 200 gr. Flat point. A deeper set bullet will increase the internal pressures, but OAL is based on the physical length of the bullet, as well as the depth set.
So.... if you were to set a 230 gr. FMJ round nose to a COAL of 1.20, I would guess you would be exposing yourself to a abnormally high internal pressure (read: Possible Kaboom!!) Once again, I say: The loading manuals are there for a reason. Do not deviate from the mins and max's..... and watch your COAL. Da 
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COTEP: CBOB578 DW CCO SIG GSR 1911 SA Micro Compact and a spectacular cast of others! "You have never lived, until you have almost died. And for those who fight for it, life has a flavor that the protected will never know." Guy de Maupassant, 1893. Anonymously, penned on a sign at a command post at Khe Sanh, RVN.
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#3
04-03-2012, 09:00 PM
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and a +1 to what Dave says above my post.
Da
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COTEP: CBOB578 DW CCO SIG GSR 1911 SA Micro Compact and a spectacular cast of others! "You have never lived, until you have almost died. And for those who fight for it, life has a flavor that the protected will never know." Guy de Maupassant, 1893. Anonymously, penned on a sign at a command post at Khe Sanh, RVN.
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#4
04-03-2012, 09:06 PM
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Quote:
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"Be nice - everyone you meet is facing a hard battle" - Marjorie P. Hinckley Dungeon Master - LASCO Leather, Home of the COTEP Deacon COTEP #268
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#5
04-03-2012, 09:24 PM
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Quote:
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COTEP: CBOB578 DW CCO SIG GSR 1911 SA Micro Compact and a spectacular cast of others! "You have never lived, until you have almost died. And for those who fight for it, life has a flavor that the protected will never know." Guy de Maupassant, 1893. Anonymously, penned on a sign at a command post at Khe Sanh, RVN.
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#6
04-03-2012, 09:38 PM
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OAL can also vary due to bullet design, some longer and some shorter even for the same weight. Speer Gold Dots are shorter than many others. Many load data sources list the COL for specific recipes for specific bullets, some based on powder manufacturing test data, some by bullet manufacturer test data.
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COTEP CBOB0297
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#7
04-03-2012, 09:05 PM
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Quote:
This is actually a follow on to the detonation topic. One of the theories I read was that a small amount of powder in a case would cause the powder to lay along the length of the case, allowing the primer to flash over all of it causing detonation rather than burning. Pondering this, I looked at the load charts in my Lee Handbook (BTW - this book has the most complete load data I've ever found in one spot) and noticed that the min OAL varies from 1.190" to 1.270" for .45ACP (across the various bullet sizes and powders). This got my tiny little brain thinking "are they taking some of this into account?" Now - back to the dungeon! I've got a holster to sew... Lane
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"Be nice - everyone you meet is facing a hard battle" - Marjorie P. Hinckley Dungeon Master - LASCO Leather, Home of the COTEP Deacon COTEP #268
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