Predator Masters using UBB.threads ™ Infopop Corporation.
PM Gear Moon & Weather

Welcome to the Predator Masters Forums
Be sure to visit the main Predator Master website at





PM Gear
PM Gear
PM Gear
The Official Predator Masters Search Engine
Search Predator Masters

Page 5 of 18 < 1 2 3 4 5 6 7 ... 17 18 >
Topic Options
#2181050 - 03/14/12 12:54 PM Re: 6x45 Load Question [Re: CatShooter]
pcammo Offline
Die Hard Member II

Registered: 01/03/05
Posts: 1686
Loc: Helena, MT
Originally Posted By: CatShooter
Originally Posted By: pcammo


"Step 4: Plate the bullets for 2 hours (1 hour 15 min. for Sierra Blitz), adding approximately 250mg HBN directly to the tumbler."




Why is there a different time for the Sierra BlitzKing??




Sierra and Berger jackets tend to get a nice even coat faster than Nosler or Hornady jackets (in my setup). You also need to really watch the tumbler when you are coating lead tip bullets. If they are getting deformed you either need to stop or add more mass to the tumbler. I should also specify that this is the 80gr. Sierra Blitz (a lead tipped bullet) and not one of the BlitzKings. I have not tried coating any of the BlitzKings....yet.
Thanks,
John


Edited by pcammo (03/14/12 12:55 PM)

Top
#2181058 - 03/14/12 01:09 PM Re: 6x45 Load Question [Re: MO1]
pcammo Offline
Die Hard Member II

Registered: 01/03/05
Posts: 1686
Loc: Helena, MT
Originally Posted By: MO1
What is an HBN coating, and why is it of benefit?


Hexagonal Boron nitride (HBN) is a binary refractory compound that possesses good lubricity and good chemical inertness. It is used in many industrial applications as well as some face powders and other cosmetics. Here we are using it as a way to mitigate copper fouling in high volume shooting conditions. Its application and purpose are very similar to molly coating bullets. I tend to like HBN better than molly simply because it is more chemically inert and cannot generate corrosive sulfides in the barrel under some storage conditions. Like all other bullet coating, it is not safe to assume that pressure will be reduced in a given load when changing from “naked” bullets to coated bullets; especially if you have a high quality smooth barrel to start with. Start low and work up.
John

Top
#2181559 - 03/15/12 12:49 AM Re: 6x45 Load Question [Re: pcammo]
venatic Offline
Retired Moderator

Registered: 06/11/03
Posts: 6992
Loc: In the right lane
John good to see you back in the neighborhood! thumbup1

Oh and I am jealous of you're shooting range too! Must be nice to shoot in the backyard. grin
_________________________
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

Jack O'Connor 1963


Top
#2181650 - 03/15/12 08:04 AM Re: 6x45 Load Question [Re: eneranch]
pcammo Offline
Die Hard Member II

Registered: 01/03/05
Posts: 1686
Loc: Helena, MT
Originally Posted By: eneranch
Originally Posted By: pcammo


Step 4: Plate the bullets for 2 hours (1 hour 15 min. for Sierra Blitz), adding approximately 250mg 7 &#956;m HBN directly to the tumbler.





Please explain what this means.





Sorry, that should have been "adding approx. 250mg of 7 micron HBN..."

Top
#2181653 - 03/15/12 08:12 AM Re: 6x45 Load Question [Re: venatic]
pcammo Offline
Die Hard Member II

Registered: 01/03/05
Posts: 1686
Loc: Helena, MT
Originally Posted By: venatic
John good to see you back in the neighborhood! thumbup1

Oh and I am jealous of you're shooting range too! Must be nice to shoot in the backyard. grin


It is nice to be back. I am not ever taking a job that far from home again.

It looks like I need to try some CFE 223 in the 6x45. smile

Top
#2182218 - 03/15/12 10:22 PM Re: 6x45 Load Question [Re: pcammo]
venatic Offline
Retired Moderator

Registered: 06/11/03
Posts: 6992
Loc: In the right lane
Yes you do !

After my little trial with it I ran home and loaded 20 more rounds but have not gotten to try it again on paper or on a critter YET.
_________________________
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

Jack O'Connor 1963


Top
#2182402 - 03/16/12 08:23 AM Re: 6x45 Load Question [Re: venatic]
MO1 Offline
Seasoned Member

Registered: 03/27/08
Posts: 343
Loc: NH
Anyone know if the CFE 223 is temperature insensitive like the Hodgdon Extreme powders?

I'm interested in trying it in the new 6x45 upper, but I always try to stick solely with the extreme powders because I hunt and shoot between 40 below zero and 80 above, and have had some bad experiences and wild velocity deviation with powders like BLC-2 and other non-extremes.
_________________________
Regards,
Chris

"Any fool can make a rule, and any fool will mind it." ~Henry David Thoreau
"If politics is the answer then it must be a very stupid question" ~Anonymous

Top
#2182426 - 03/16/12 09:13 AM Re: 6x45 Load Question [Re: MO1]
CatShooter Offline
PM senior

Registered: 01/24/02
Posts: 9094
Loc: The Socialist Republic of CT.
Originally Posted By: MO1
Anyone know if the CFE 223 is temperature insensitive like the Hodgdon Extreme powders?

I'm interested in trying it in the new 6x45 upper, but I always try to stick solely with the extreme powders because I hunt and shoot between 40 below zero and 80 above, and have had some bad experiences and wild velocity deviation with powders like BLC-2 and other non-extremes.


No... it is a ball powder and sensitive to temperature changes.
_________________________
CatShooter
Spring has sprung, da' creek has riz, I wonder where dem kitties is.

Here kitty, kitty, kitty...

NRA Life member since 1965

Top
#2182471 - 03/16/12 10:29 AM Re: 6x45 Load Question [Re: CatShooter]
pcammo Offline
Die Hard Member II

Registered: 01/03/05
Posts: 1686
Loc: Helena, MT
CatShooter is correct, I would not expect CFE 223 to be as temp. stable as the extreme powders. I doubt there are enough rounds down range yet with it to say just how sensitive it is. BL-C(2) and H-335 have always been some of the worst offenders in my rifles. X-Terminator seems to not be quite as bad. It looks like we will be in the 50's tomorrow and in the low teens by early monday morning. If I am industrious enough, I will put some ammo and the rifle in the -30 freezer overnight and we will see what happens.

Top
#2188173 - 03/24/12 11:00 AM Re: 6x45 Load Question [Re: pcammo]
T3BEAR Offline
Junior Member

Registered: 12/25/11
Posts: 40
Loc: Texas
Great info. Just received my 6x45 barrel and I ready to test it. Thanks..

Top
#2195068 - 04/04/12 03:47 PM Re: 6x45 Load data [Re: pcammo]
MO1 Offline
Seasoned Member

Registered: 03/27/08
Posts: 343
Loc: NH
Here's some recent 6x45 data:

20" D-tech upper, avg. temp 50 deg, Win once fired brass, CCI 400 primers, seated to mag length of 2.260

bullet, powder, grains, avg. velocity, 4 shot groups, notes
75 grain V-max, H-4895, 25.6, 2726
75 grain V-max, H-4895, 25.8, 2726
75 grain V-max, H-4895, 26.0, 2732
75 grain V-max, H-4895, 26.2, 2777
75 grain V-max, H-4895, 26.4, 2818
75 grain V-max, H-4895, 26.5, 2789, .3", outstanding accuracy and velocity uniformity
75 grain V-max, H-4895, 26.6, 2801, .6"
75 grain V-max, H-4895, 26.7, 2818, .6", primer flattening starting here in some loads, but no cratering in any loads
75 grain V-max, H-4895, 26.8, 2807
75 grain V-max, H-4895, 27.0, 2818
(settled on 26.5 load for the 75 grain V-max)
---------
75 grain V-max, Benchmark, 24.0, 2666
75 grain V-max, Benchmark, 24.2, 2666
75 grain V-max, Benchmark, 24.4, 2732, started seeing slightly flat and cratered primers
75 grain V-max, Benchmark, 24.6, 2666
75 grain V-max, Benchmark, 24.8, 2749
75 grain V-max, Benchmark, 25.0, 2737
75 grain V-max, Benchmark, 25.2, 2760
75 grain V-max, Benchmark, 25.4, 2789
(abandoned Benchmark due to erratic velocity data and primer pressure signs)



Load data on 85 grain Sierra Gamemaster HPBT to follow in a week or so.
_________________________
Regards,
Chris

"Any fool can make a rule, and any fool will mind it." ~Henry David Thoreau
"If politics is the answer then it must be a very stupid question" ~Anonymous

Top
#2195925 - 04/06/12 08:50 AM Re: 6x45 Load data [Re: MO1]
EFR Offline
Predator Master

Registered: 03/22/11
Posts: 82
Loc: Western Ma
Thanks to everyone for all the 6x45 info here. I am (impatiently) waiting on a 6x45 barrel from Lothar Walther jump into this caliber as well. Looks like a winner.

Top
#2198845 - 04/11/12 12:37 PM Re: 6x45 Load data [Re: EFR]
IceAxe Offline
New Member

Registered: 01/22/12
Posts: 3
Loc: Colorado
First thanks to everyone who contributed to data I found here. What a wealth of info. By far the best I have found on the web.

I put together an upper with a 20" stainless Midway\Stoner barrel (6x45) 1-8 twist. The upper shoots great (1" or less/ w 4x Nikon) providing I use bullets of 75 grains or less. I would have thought with this twist rate I could stabilize at least the 87 or 90 gainers but that has not been the case. The groups for these "heavier" rounds open up to 3 or 4 inches. I wonder if other members using Ar style uppers in 6x45 have had similar results. If you have been successful with heavier bullets in a similar upper what recipe/combination was used? Thanks Bob

Top
#2201001 - 04/15/12 12:32 AM Re: 6x45 Load data [Re: IceAxe]
bubbabassin45 Offline
Junior Member

Registered: 01/22/05
Posts: 30
Loc: Wisconsin
Just shot my new 6x45 today. It is also a 1 in 8 twist but 24 inches. Only tried one load just to see how it ran. I loaded 87 grain v-maxes with h4895 and shot two groups at around 3/4 inch at 100 yards. One was 5 shots and the second was 4 shots as that was all the rounds I had left. This was shot prone over my buddies tool bag in his field. Very happy with it. I am sure off of a bench with a real rest I could have shrunk the groups in half. As far as the previous poster goes I had no problems stabilizing the 87 grain bullets.

Top
#2201449 - 04/15/12 07:28 PM Re: 6x45 Load data [Re: bubbabassin45]
IceAxe Offline
New Member

Registered: 01/22/12
Posts: 3
Loc: Colorado
[img]http://s1165.photobucket.com/albums/q594/blapalme/[/img]

What velocity / load are you getting with the 4895. Perhaps I am not slinging them fast enough.

Top
Page 5 of 18 < 1 2 3 4 5 6 7 ... 17 18 >



Moderator:  Matt1953 

© Predator Masters™, All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.