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Post by deadeye on Mar 13, 2011 17:54:06 GMT -5
 4 almost within the nickel, #5- took us out to approx 1.2''  a barrel cleaning,change to new vent,small possible adjustment on powder.   rough day fighting it but it appears your gun does not like the heavy bullets,286gns,270gns this group was w/the norma 232gns @ es-2789,2763,2775,2739,2750 |
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Post by Savage Shooter on Mar 13, 2011 17:59:12 GMT -5
Good deal, that was the bullet I thought too.
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Post by jims on Mar 13, 2011 18:30:39 GMT -5
You are hard at work already. Nice outing. The 232s offer more speed and on light skinned game like whitetail may be the real ticket. Also less recoil. May have only been better if I had a slower twist. Looking good.
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Post by deadeye on Mar 13, 2011 19:13:12 GMT -5
i was taping up for the mz elusive 1-holer ;D,but of course did not happen. one thing to note the vent was measured just prior approx 10shots back & already was @ .035. when i see these groups taking that "round formation" i really start to get excited. better things to come i'm sure! btw it was a pleasure to shoot that 232gn,recoil was mild.
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Post by deadon on Mar 13, 2011 19:23:31 GMT -5
The 232 gr norma is a 9.3 mm if I am not mistaken. I guess you had to knurl it quite a bit?
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Post by deadeye on Mar 13, 2011 19:32:48 GMT -5
The 232 gr norma is a 9.3 mm if I am not mistaken. I guess you had to knurl it quite a bit? no not at all & i did not even mic those. i use what i think edge referred as a "tapered knurl" works great. i just removed jims brake & knurled slightly so the base of the bullet seats in the crown just a slight bit,then with a ball starter with medium friction in which i would guess approx 25lbs, it gets a little tighter as the bullet is knurled heavier at the shoulder,seems to be the most consistent in my experience |
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Post by jims on Mar 13, 2011 19:52:32 GMT -5
The 232 Normas are 9.3mms but are .365s in diameter. Most other 9.3 mms measure .366.
Once the bore is fouled a lightly knurled .365s may be the ticket, the .366s are too tight and would have to be sized somewhat smaller to work. Somewhere in between might be the magic size. The swinglock die may aid finding that.
I found the full .366s only worked if chilled and/or out of a clean barrel and that got old fully cleaning the barrel after every shot.
It appears deadeye is on to something. Good work.
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Post by deadeye on Mar 13, 2011 20:28:05 GMT -5
per jims notes his barrel .375=grooves,.366=lands.
i really wanted the 286 nosler partitions to work since he had quite a supply of those. i did not like the way the partitions resized,very inconsistent even w/swinglock die ran through 3 times a piece.
i then went to the hornady' 286-better consistency as far as sizing-still not impressed on the targets
then to the speer 270gn-very consistent sizing etc-but still not good target results
i was chasing-horizontal & vertical all day with most groups the 1st two touching & then 1.0'' or worse.
last chance of the day & in my mind i was thinking it wanted a lighter weight bullet & i think it does. i had to quick knurl a few as light was fading even though we were on a possibly very worn vent. the 232 norma /knurled looks to be the key.
per jims there is not much more bullet choice's out there in 9.3 etc.
jims goal was a "bugholer" in which he said he probably won't go much over 200yds/hunting. i think we eventually could go 500yds or more ;D ;D ;D
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Post by jims on Mar 13, 2011 21:35:53 GMT -5
It would take a much better trigger man than myself to shoot well at those long yardages, but it is already in hands capable of doing that.
For where I hunt 200 yards or a bit more would about be the limit I could shoot or really feel comfortable in shooting.
Deadeye gets to the problem/issues pretty quickly. That comes in part to alot of range experience, not his first rodeo.
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