CROSS FROM ANOTHER FORUM:
Warning -- OverMax Loads discussed
Working w/ the BearTooth 185 FNGC bullet in a modern`92Winchester.
OALs run 1.570" w/ heavy roll crimp in all instances.
Powders already run: 2400, Lil'Gun, V-N110
Cases are Starline: 27.0gr H2O
Now looking at H110/W296....
Most all "Published Manual" loads for W296/H110 & 185gr bullets (lead or jacketed) top out at 13.5-14.0grains.
This is at odds w/ the majority of high-performance internet loads from experienced shooters hitting 16.0gr & higher.
Further, the "296 rule of thumb" discussed at length by very respected TFL members is that a 100% full case of
W296/H110 (i.e., up to bullet base) can be considered a safe Max.
With the StarlineCase/185gr Beartooth combination that "100%" is a measured 16.7gr H110
I'd appreciate re-discussion of experiences here on the 357Mag/Heavy Cast possibilities using W296/H110 ...before I start up the ladder.
~~~~~~~~~~~~~~~~~~~~~~
Other readers might be interested in this thread:
http://www.shootersforum.com/handloading-procedures-practices/61387-357-magnum-180-grain-loads.html
Again, I note the warning of over-book load discussion -- not recommendation.
~~~~~~~~~~~~~~~~~~~~~
Taking the issue further, conventional wisdom says you do not want to underload/leave a large case volume vacant w/ H110/W296. In fact many sources will instruct that load density should approach 100% for proper ignition/burn, and significant reductions from that are at the shooter's risk.
Well, the 100% load density (to base of bullet/actually measured) for the 185 BearTooth FNGC seated to crimp groove/1.570" is 16.7gr. Reducing that to the 13.5-14.0gr found in most loading manuals means I'd be running only 80-84% load density -- definitely not in accord w/ guidance for this powder.
So if anyone's got informed ideas on how to bridge the rather large gap between blindly following the "Manual" -- and complying w/ equally hard guidance to avoid underloading this powder, I'd sure appreciate it.
~~~~~~~~~~~~~~
Many thanks in advance to those who would consider this seriously
___________________________________________________________
Hopkins: Well, in all my years I ain't never heard, seen nor smelled an issue that
was so dangerous it couldn't be talked about. Hell yeah! I'm for debating anything.
Rhode Island says yea!
Stephen Hopkins (7 March 1707 – 13 July 1785)
1776
Warning -- OverMax Loads discussed
Working w/ the BearTooth 185 FNGC bullet in a modern`92Winchester.
OALs run 1.570" w/ heavy roll crimp in all instances.
Powders already run: 2400, Lil'Gun, V-N110
Cases are Starline: 27.0gr H2O
Now looking at H110/W296....
Most all "Published Manual" loads for W296/H110 & 185gr bullets (lead or jacketed) top out at 13.5-14.0grains.
This is at odds w/ the majority of high-performance internet loads from experienced shooters hitting 16.0gr & higher.
Further, the "296 rule of thumb" discussed at length by very respected TFL members is that a 100% full case of
W296/H110 (i.e., up to bullet base) can be considered a safe Max.
With the StarlineCase/185gr Beartooth combination that "100%" is a measured 16.7gr H110
I'd appreciate re-discussion of experiences here on the 357Mag/Heavy Cast possibilities using W296/H110 ...before I start up the ladder.
~~~~~~~~~~~~~~~~~~~~~~
Other readers might be interested in this thread:
http://www.shootersforum.com/handloading-procedures-practices/61387-357-magnum-180-grain-loads.html
Again, I note the warning of over-book load discussion -- not recommendation.
~~~~~~~~~~~~~~~~~~~~~
Taking the issue further, conventional wisdom says you do not want to underload/leave a large case volume vacant w/ H110/W296. In fact many sources will instruct that load density should approach 100% for proper ignition/burn, and significant reductions from that are at the shooter's risk.
Well, the 100% load density (to base of bullet/actually measured) for the 185 BearTooth FNGC seated to crimp groove/1.570" is 16.7gr. Reducing that to the 13.5-14.0gr found in most loading manuals means I'd be running only 80-84% load density -- definitely not in accord w/ guidance for this powder.
So if anyone's got informed ideas on how to bridge the rather large gap between blindly following the "Manual" -- and complying w/ equally hard guidance to avoid underloading this powder, I'd sure appreciate it.
~~~~~~~~~~~~~~
Many thanks in advance to those who would consider this seriously
___________________________________________________________
Hopkins: Well, in all my years I ain't never heard, seen nor smelled an issue that
was so dangerous it couldn't be talked about. Hell yeah! I'm for debating anything.
Rhode Island says yea!
Stephen Hopkins (7 March 1707 – 13 July 1785)
1776