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come up's m-1 Garand 168 gr,,any one have a ball park figure ?

Started by Wade, September 30, 2008, 07:50:33 PM

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Wade

September 30, 2008, 07:50:33 PM
Help I can't even find either of my book's (hatchers book of the garand or the m-1 garand owners manual)
So I can't even use the come ups for the ap rounds to start with  and yes my sights are indexed correctly anybody have an indea of where to start.

Have sevral loads to try  useing hornady 168 gr hpbt 45 gr imr 4895 and imr 4064 46 gr greek  milsurp case's.

TIA

Wade
Got Tired of looking for a Rifle Range So we Dug one up!
WOOF!
4 box's #1 the soap box#2 the letter box #3 the ballot box #4 the cartridge box, The founding fathers picked up the Cartridge box so that WE could use the first 3,,IMO If you don't use those 3 then you dishonour the founding Fathers !

wcmartin1

#1
September 30, 2008, 08:28:19 PM
"Unhappy it is, though, to reflect that a brother's sword has been sheathed in a brother's breast and that the once-happy and peaceful plains of America are either to be drenched with blood or inhabited by a race of slaves.  Sad alternative!  But can a virtuous man hesitate in his choice?" - George Washington - from a letter to a close friend after the events of April 19, 1775

"There is no nation on earth powerful enough to accomplish our (the United States) overthrow.  Our destruction, should it come at all, will be from another quarter.  From the inattention of the people to the concerns of their government, from their carelessness and negligence, I must confess that I do apprehend some danger.  I fear that they may place too implicit a confidence in their public servants, and fail properly to scrutinize their conduct; that in this way they may be made the dupes of designing men, and become the instruments of their own undoing." - Daniel Webster, June 1, 1837

Wade

#2
October 01, 2008, 04:46:07 AM
Good reminders of standerd come ups Thank you,, I seem to remember the come ups for the aprounds being a little defrant I think becouse the ap round was/is abit heaver av about 165 gr? ah I will just start at 300 and work from there and see what it does and write down my dope on these loads im useing ,so much to learn .

Wade
Got Tired of looking for a Rifle Range So we Dug one up!
WOOF!
4 box's #1 the soap box#2 the letter box #3 the ballot box #4 the cartridge box, The founding fathers picked up the Cartridge box so that WE could use the first 3,,IMO If you don't use those 3 then you dishonour the founding Fathers !

Spatulaman

#3
October 01, 2008, 09:29:14 AM
 The AP round was IIRC a 173 gr. Which was, I believe,  the same as the LC match. I've got the figures you need around here somehwere, but can't put my hand on it. PM VAshooter, I'll bet he's got that dope.

wcmartin1

#4
October 01, 2008, 12:06:11 PM Last Edit: October 01, 2008, 12:15:57 PM by wcmartin1
Quote from: Wade on October 01, 2008, 04:46:07 AM
Good reminders of standerd come ups Thank you,, I seem to remember the come ups for the aprounds being a little defrant I think becouse the ap round was/is abit heaver av about 165 gr? ah I will just start at 300 and work from there and see what it does and write down my dope on these loads im useing ,so much to learn .

Wade

The standard come ups should get you within a click or two (they did for me) until you find out your own zero for each range.  That's why I posted the link.

You are correct in stating that they will be different.  Due to the higher BC of the 168 grainers I believe you will find that they typically take one or two clicks less.

Remember - every shot is a sighter.   ;D
"Unhappy it is, though, to reflect that a brother's sword has been sheathed in a brother's breast and that the once-happy and peaceful plains of America are either to be drenched with blood or inhabited by a race of slaves.  Sad alternative!  But can a virtuous man hesitate in his choice?" - George Washington - from a letter to a close friend after the events of April 19, 1775

"There is no nation on earth powerful enough to accomplish our (the United States) overthrow.  Our destruction, should it come at all, will be from another quarter.  From the inattention of the people to the concerns of their government, from their carelessness and negligence, I must confess that I do apprehend some danger.  I fear that they may place too implicit a confidence in their public servants, and fail properly to scrutinize their conduct; that in this way they may be made the dupes of designing men, and become the instruments of their own undoing." - Daniel Webster, June 1, 1837

Nickle

#5
October 01, 2008, 12:22:03 PM
AP and M72 Match bullets are both 173 grain, and will have different trajectories, as they have different Ballistic Coefficients.

That being said, find the trajectory chart for 168 gr .308 Match ammo, and you will be very close.
They have men amongst them who know very well what they are about, having been employed as Rangers against the Indians and Canadians and this country being much covered with wood, and hilly, is very advantageous for their method of fighting. . . . ".  Lord Percy

Sounds like New Englanders to me.

wcmartin1

#6
October 01, 2008, 12:43:15 PM
Here's some data from Sierra on the 168 gr MK that you can use as a starting point as well.

Find your velocity and go from there.
"Unhappy it is, though, to reflect that a brother's sword has been sheathed in a brother's breast and that the once-happy and peaceful plains of America are either to be drenched with blood or inhabited by a race of slaves.  Sad alternative!  But can a virtuous man hesitate in his choice?" - George Washington - from a letter to a close friend after the events of April 19, 1775

"There is no nation on earth powerful enough to accomplish our (the United States) overthrow.  Our destruction, should it come at all, will be from another quarter.  From the inattention of the people to the concerns of their government, from their carelessness and negligence, I must confess that I do apprehend some danger.  I fear that they may place too implicit a confidence in their public servants, and fail properly to scrutinize their conduct; that in this way they may be made the dupes of designing men, and become the instruments of their own undoing." - Daniel Webster, June 1, 1837
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