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9.3 muzzle diam.
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on a 9.3x62 or 375 h-h is a muzzle diam. of 650. aduqate.thanks
 
Posts: 315 | Registered: 16 March 2006Reply With Quote
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I suppose it would work, but pretty thin for me.
My 9.3 has a .725 muzzle, but I wanted a bit of weight and it's is 26" long. Merely subtract the bore diameter from the OD of the muzzle and you can determine wall thickness by halving that number. Had a Browning Safari 458WM while living in Alaska and it looked more like a .410 shotgun due to the very thin wall thickness at the muzzle. It served me well, but often wondered why they would do it that way??
 
Posts: 1328 | Location: West Virginia | Registered: 19 January 2009Reply With Quote
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My 1939,1940 Husqvarna 9.3s are .620
 
Posts: 1845 | Registered: 01 November 2009Reply With Quote
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.620 is plenty!

Ever look at a rifle barrel on a drilling or other combo gun? They are almost as thin as the shotgun barrels.

Husqvarna used the same barrel contour for the 30-06 and the 9,3s they chambered. My FN 98 Husqvarna shoots ragged holes from those thin barrels. Wink
 
Posts: 1765 | Location: Northern Nevada | Registered: 27 February 2004Reply With Quote
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Sure they are thin, but there are two of them. I find most barrels are too light for my taste, but I like short, heavy rifles.
 
Posts: 956 | Location: PNW | Registered: 27 April 2009Reply With Quote
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My Sauer S202 has 0,694" (17mm) muzzle diameter.
 
Posts: 510 | Location: Iceland | Registered: 15 May 2006Reply With Quote
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My wilson barrel is .575" at 20".
 
Posts: 323 | Location: Northeastern, PA | Registered: 21 June 2002Reply With Quote
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Mine is 0.700" at the muzzle.


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Ray
 
Posts: 1786 | Registered: 10 November 2004Reply With Quote
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Around 17 mm is ok

M
 
Posts: 413 | Location: Norway | Registered: 14 May 2009Reply With Quote
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Mine are 650



Doug Humbarger
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Posts: 8351 | Location: Jennings Louisiana, Arkansas by way of Alabama by way of South Carloina by way of County Antrim Irland by way of Lanarkshire Scotland. | Registered: 02 November 2001Reply With Quote
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Adequate for what?




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Posts: 4865 | Location: Lakewood, CO | Registered: 07 February 2002Reply With Quote
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quote:
Originally posted by vip:
My wilson barrel is .575" at 20".


Hey vip I have one of those too and I see no trouble with it. Mine turned out to be a real light rifle and kicks a bit with 64 grains of Ramshot Big Game and 286 bullets but it is accurate.
I'll post a target and rifle picture below......


 
Posts: 5604 | Location: Eastern plains of Colorado | Registered: 31 October 2005Reply With Quote
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I've had suggested to me that a minimum barrel thickness should be 0.150", and larger 0.180" for accuracy. By that rule of thumb, add 0.300" to your bore diameter to establish a benchmark.


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Posts: 1184 | Registered: 21 April 2007Reply With Quote
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Snellstrom,
That looks very practical. I just ordered in some of the privi 285's. Looks like you've have great success with them. Have you ever tried burning Reloader-15 in this caliber?
Paul.
 
Posts: 323 | Location: Northeastern, PA | Registered: 21 June 2002Reply With Quote
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quote:
Originally posted by vip:
Snellstrom,
That looks very practical. I just ordered in some of the privi 285's. Looks like you've have great success with them. Have you ever tried burning Reloader-15 in this caliber?
Paul.

No I haven't tried RL-15, I heard rave reviews about Ramshot Big Game powder and this caliber so I started with that and it is working pretty well. It shoots PRVI 285's and Norma Alaskan 286's to the same point of impact and same size groups. It also shoots Speer's 270 grainers very well just a smidge higher than the 285's. If I remember correctly burn rates of RL-15 is similar so I would give it a go if you have it on hand. I gleaned a lot of info off of AR about loads for the 9.3 so if you need some I can e-mail it to you.
The scope on my rifle is a 2-7 Nikon Monarch, maybe it would shoot smaller groups with more glass? Actually sub 1" suits me fine.
Sorry about hijacking the thread I just posted my pictures to show that you don't "have" to have a heavy, long barrel to get accuracy and acceptable velocity, thought some might appreciate the comparison as it differs from many popular opinions.
Good luck with yours.
 
Posts: 5604 | Location: Eastern plains of Colorado | Registered: 31 October 2005Reply With Quote
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FN-Browning CCS25 9,3x74R. Muzzle .510


Blaser R93 9,3x62. Muzzle .671


K98 "Scout" 9,3x62. Muzzle .614


André
DRSS
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3 shots do not make a group, they show a point of aim or impact.
5 shots are a group.
 
Posts: 2420 | Location: Belgium | Registered: 25 August 2001Reply With Quote
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My Ruger tang safety 9.3x62 (bored out from a 30-06) has a barrel dia of 0.560. Light? You bet ya... Kick, yep. Pleasure to carry around all day, priceless. The rifle holds 5 down and one in and if you empty the rifle at a target on a warm day the barrel get very hot. However; accuracy does not suffer as much as one might expect.

The rifle likes Ramshot Big Game a lot, I've found that 65gr works very well with just about any weight or make of bullet. More interesting is that bullets from 232 to 286 will group within 3 inches vertically and group size is consistantly around 1.5 inches(3 shots) at 100 yds.

I have an older, discontinued naturally, Burris 1x to 4x shotgun scope on the rifle. Eye relief is a stunning; 20 plus inches at 1x and about 5 inches at 4x. (Makes shooting this rifle prone a fairly happy task since I don't have to worry about a "scope kiss".) I liked the scope and desided to buy another, just in case, found out they were discontinued!!! Found a dealer, through Burris, that still had some in stock and bought 3 more. Gave one to PH in Namibia, my wife has one on her 270 (don't ask, women, guns, scopes, whatever) and one sits in reserve. Obviously, nothing will ever go wrong with the scope I have on the rifle since have a replacement ...
 
Posts: 763 | Location: Montana | Registered: 28 November 2004Reply With Quote
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quote:
Originally posted by luv2safari:
.620 is plenty!

Ever look at a rifle barrel on a drilling or other combo gun? They are almost as thin as the shotgun barrels.

Husqvarna used the same barrel contour for the 30-06 and the 9,3s they chambered. My FN 98 Husqvarna shoots ragged holes from those thin barrels. Wink


FWIW, My little petite 9.3X72 DR has a muzzle diameter of .480.. That's thin!


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Posts: 4096 | Location: Cherkasy Ukraine  | Registered: 19 November 2005Reply With Quote
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quote:
Originally posted by Snellstrom:
quote:
Originally posted by vip:
My wilson barrel is .575" at 20".


Hey vip I have one of those too and I see no trouble with it. Mine turned out to be a real light rifle and kicks a bit with 64 grains of Ramshot Big Game and 286 bullets but it is accurate.


Snell,

I also found the 285 Prvis to be accurate. I use the prvis to develop my reloads for 286 NPTs. Development was much less expensive doing it with $0.22 bullets than it would have been with the NPTs at $0.80 per shot! I my rifle, they were completely interchangable as far I could tell on velocity and pressure!

I never shot any game (just targets) with the 285 PPs, but the 268 NPTs on game are impressive!


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Ray
 
Posts: 1786 | Registered: 10 November 2004Reply With Quote
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100/1000 on each side is generally considered fine at the muzzle.

Therefore, .575 is plenty from a saftey standpoint. Pressure drops way off down at the muzzle.

Now as far as feel and balance...personal preference is the rule.


Mike

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Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue.




What I have learned on AR, since 2001:
1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken.
2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps.
3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges.
4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down.
5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine.
6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle.
7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions.
8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA.
9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not.
10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact.
11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores.
12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence.
13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances.
 
Posts: 10163 | Location: Loving retirement in Boise, ID | Registered: 16 December 2003Reply With Quote
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Hey Ray
I shoot the speer 270 grainers and the 285 PRVI's (I laid in a stock of them quite awhile back), I also shoot 286 grain Norma Alaskans.
The PRVI's and Norma's shoot to the same place and I've shot 3 shot groups at .5 and .6" with both of them.
I have not killed an animal with my 9.3 yet but will even if I have t use it on a deer or antelope.
 
Posts: 5604 | Location: Eastern plains of Colorado | Registered: 31 October 2005Reply With Quote
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