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Oklahoma Rebel
10-01-2017, 03:24 PM
I was reading through some older posts, and found one about bore riding nose style boolits, and not being any good for over 1800fps. when I do get my gun, I have a modified 37-285C mold at accurate that I am getting. it is the 37-286C. now, considering boolit fit is all good, is there any real reason why I shouldn't be able to get 2100- 2200 fps out of this boolit? the gun is a CZ550FS 9.3X62.

Rcmaveric
10-01-2017, 03:27 PM
I am pushing bore riders in my .270 winchester to 2100 fps. Your gun will have its own personality.

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Oklahoma Rebel
10-01-2017, 04:20 PM
I forgot to mention the barrel is a 1 in 14 twist. maverick, how do you nose size your boolits, just a slip in fit, a little over?

Rcmaveric
10-01-2017, 07:33 PM
I dont nose size. They are proper size as cast for a slip fit. I am thinking looking at nose sizing because if i powder coat then the nose is too large, forcing me to set deep. Thats also why i dont paper patch to the ojive.

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Oklahoma Rebel
10-01-2017, 09:41 PM
SO YOU GET GOOD ACCURACY FROM THE SLIP FITTING NOSE? SRY FOR CAPS- Travis

runfiverun
10-01-2017, 09:51 PM
try not supporting the nose and see what happens.
most HV guy's don't use bore riding projectiles.

Oklahoma Rebel
10-02-2017, 04:30 PM
is there a good 280gr+ non bore riding boolit mold available for the 9.3x62? if the crimp groove is up more than .35-.37 from the base, it will be in the case, in fact at those measurements the gas check is right below the neck, but no lead should be showing

Bama
10-02-2017, 06:15 PM
I was reading through some older posts, and found one about bore riding nose style boolits, and not being any good for over 1800fps. when I do get my gun, I have a modified 37-285C mold at accurate that I am getting. it is the 37-286C. now, considering boolit fit is all good, is there any real reason why I shouldn't be able to get 2100- 2200 fps out of this boolit? the gun is a CZ550FS 9.3X62.

You may have to add copper to keep it together. I have an 85 gr 6 mm that crooned just over 3000 fps using smokes Bacon Grease. Accuracy not the greatest but it sure didn't take long to get to target. A lot depends on gun--every one different.

Oklahoma Rebel
10-02-2017, 08:05 PM
I have a good copper alloy.

Oklahoma Rebel
10-02-2017, 08:05 PM
it should be around 3.5/3.5/.04cu

Thumbcocker
10-02-2017, 08:22 PM
Walt at NEI had what he called a DD band on the nose of some of his boolits. The band engaged the rifeling supposed to reduce friction or something. I have a few of those molds.

Oklahoma Rebel
10-03-2017, 10:36 PM
this boolit should have enough grip without using the nose for rifling engagement, I added .10 I think to the forward band ( accurate 37-286C [used to be 37-285c, I modified it]}

Bama
10-06-2017, 12:03 PM
SO YOU GET GOOD ACCURACY FROM THE SLIP FITTING NOSE? SRY FOR CAPS- Travis

I do. Recovered bullets show full rifling engagement from end to the ogee with NO indication of slippage or blow by, try it you may like it. Anything to improve fit and alignment seems to help accuracy.

Oklahoma Rebel
10-06-2017, 02:13 PM
so the nose does obturate a bit, so easy loading, then grips well when fired. sounds like I just need to measure carefully before I order the mold. I'm still trying to decide between this one or a none bore rider I designed