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romex2121
Senior Member
214 Posts |
 Posted - Oct 31 2009 : 09:39:42
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just courious as to what the majority considers an average exceptibale group for ML's would be at 100yrds,,, i havent shot mine since last years deer season ( got a ten point mulley )and i need to get back into working with it some( more ) |
the politicians were put there to work for us the people,not the other way around,and only we the people can make them aware of this. |
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Wolfgang
Advanced Member
1553 Posts |
Posted - Nov 03 2009 : 09:15:42
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The answer depends on many things. I normally only use match-grade barrels on the ML's I build unless the customer spec's something of lesser quality. For a PRB shooter of .45 and up, provided the loading is done properly and the components are of sufficient quality, acceptable group size is 2" or less @ 100yds. For a bore-size conical shooter under .54 caliber, 1.5" or less. Talking all iron sight shooting here, an underhammer conical shooter with period scope is often quite capable of running <1" as are some of the others if you've got a tight trigger nut with good eyes.
87yd group shot with a .36cal flintlock pushing PRB's (patched round balls) with 40gr of 2F real black powder. Ignore the bottom two holes in the white, they're from a .45.
This one was shot at 135yds during prototyping with a .45cal underhammer pushing my 490gr bullets with 85gr of 2F real black powder.
Biggest issues with ML's is the lack of consistency in loading, poor quality consumables and/or the operator damaging the consumables before/during loading. If you're using the modern sabutts (sabots), one of the major issues is reductions in velocity consistency caused by the friction factor of the barrel changing with the increasing deposition of plastic and fouling and how the two interact with each other. I was at the range and watched a fellow chrony several different loads from three different in-lines. The amount of linear spread from beginning to end in a given string was quite wide. Large non-linear spreads within some strings were seen with both Pyrodex and T-7 pellets with the greatest extremes being with the Hornady Lock-n-Load assemblies. |
 Carry the battle to them. Don't let them bring it to you. Put them on the defensive and don't ever apologize for anything."
Harry S. Truman
mark@fire-iron.biz
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ML groups ????
