Author Topic: Rem. 7600 Bullet Size (Read 993 times)

fknipfer · « **on:** April 02, 2006, 05:10:05 PM »

Having just bought a new 7600 carbine in 30-06, I was wondering how big a bullet it would handle safely? I know a 150 or 180 grain is ok, but how about a 200, 220 or even a 250gr bullet? I know these rounds are ok in my FN Mauser 30-06 but how about the 7600?
Reason for question is, next year going hunting where there could possible be grizzlies and the old saying is if you hunt in grizzly bear country you carry a bear rifle. A 30-06 with a 220 or 250 grain bullet qualifies as a Grizzly bullet. A little small to some but if he leaves me alone I will leave him alone. I could carry a bigger rifle but I really do hate recoil of the .375 & .458 etc. etc.

fknipfer

old06 · « **Reply #1 on:** April 03, 2006, 03:19:59 PM »

Years ago I lived in Alaska and did handload some 220 RN for a old 760 and they shot and function find I never seen a reason to stick a 250 in a ought six case.

fknipfer · « **Reply #2 on:** April 04, 2006, 04:15:07 AM »

old06,
You think the 220gr is heavy enough for grizzlies in a pinch. I have never been around them and all the stories are to carry as big a rifle as possible. I haven't shot the 7600 yet but Remington says with the new floating barrel it will be as accurate as a bolt action. That is something I will have to see. How was the accuracy of your 760. Thanks for the info.

fknipfer

Daks · « **Reply #3 on:** April 04, 2006, 05:08:30 AM »

I hold sub MOA on my 7600 off a rest. 35 Whelen.

fknipfer · « **Reply #4 on:** April 04, 2006, 08:52:01 AM »

Shot mine today and I couldn't believe it, with a 6lb trigger shot a 1.0 group at 100yds. It really likes the Remington 150 Core Lokt. Get the trigger fixed to about 3lbs and use some jacket hollow points and I think it will shoot below MOA. I couldn't believe a pump gun would shoot this good but it does. Must be the 30-06 caliber or the gun. I am really impressed with this gun, I think it just became my no. 1 hunting rifle.

fknipfer

old06 · « **Reply #5 on:** April 04, 2006, 04:23:59 PM »

Several of the old timers I worked with that was there basic setup and they guy's were there in the 40's and 50's ought six and 220 RN and that was all the gun they need and yes they have taken more then there share of game includeing big bear's I seen the proof of it I would not think twice about it its time proven now befor someone points that we didn't the hi-tec bullets asnd med bore mags yep I know but in the hands of a good shot with a well placed 220 it will do what its done for lots of years befor you and I talked about it on the internet :wink:

fknipfer · « **Reply #6 on:** April 04, 2006, 09:36:43 PM »

I just did some calculations off of a formula Chuck Hawks has worked out, one of the foremost gun experts in the world and here are some of the results his and mine. Caution these are just reference numbers and no scientific data but they look real interesting. There are a killing power list and formula.
KP Number
30-06 Springfield 220grs @ 2410fps = 54.6
300 Winchester Mag 180grs @ 2960fps = 59.5
35 Whelen 200grs @ 2675fps = 56.4
444 Marlin 265grs @ 2325fps = 63.4
350 Rem Mag 200grs @ 2770fps = 60.9
30/30 Win 170grs @ 2200fps = 25.4
35 Rem 200grs @ 2080fps = 38.8
450 Marlin 350grs @ 2100fps = 88.9
375 H&H 270grs @ 2690fps = 106.2
458 Win Mag 500grs @ 2090fps = 217.3
45/70 Gov 405grs @ 2000fps = 125.8

This is calcuated by Energy @100yds X Sectional Density x bullet cross-sectional area (frontal areas) "Chuck Hawes".

So it looks like the old gal (30-06) who is a 100yrs old is still in there kicking. A lot of new ones in there but quite a few old ones too. I'm not sure we have improved that much. No one really outshines here much and if you take into consideration recoil of some of these loads no one does.

fknipfer

old06 · « **Reply #7 on:** April 05, 2006, 06:11:28 PM »

I for one am not surprised the ought six is the one modern rounds are judge by how much better they are than the ought six. Well if youre still the bench mark and your 100 years old you have put many in the history books and still kicking. It could never be a bad choice it may not have all that glitz like it did in its younger days but it does the job at hand what ever it may be.

tanoose · « **Reply #8 on:** May 06, 2006, 02:04:12 AM »

FK i am using the 220 grain Hornady RN in a 760 pump great accuracy with 54.0 of IMR4831 Haven't put it through a chrony to give you velocity.Iposted a chart some time ago if i can find it i'll end it to you it was am penitration test for big bears in alaska and it was done many years ago with only factory ammo . the 458 wm and the 460 wby were the only two rounds to penetrate deeper than the 30/06 with remington 220 sp this included all the 30 cal magnums and even the 338. I think the velocity was around 2300 or so . Ill try and find it and post it

Lone Star · « **Reply #9 on:** May 06, 2006, 03:54:05 AM »

Expect the recoil from any 220s to unlock the 7600's action at each shot. Not a bad thing, but a reality with heavy bullets.

Do you need 220-250 grain bullets for grizzly bear? As one who has shot coastal brown bear and who hunted Alaska for 27 Falls, I say absolutelty not, premium 180s will do as well. Jack O'Connor shot right through inland grizzlys with 180 Noslers in his '06, how could a heavier bullet do any better?

60 years ago we didn't have the assortment of high quality bullets we have now, and the old timer's trick was to use the heaviest bullet available for heavy game - that's what their grandfathers did and it was all they could do. Today we live in a more enlightened hunting world (albeit with more armchair experts who've never seen a bear in the woods), and realize that 19th century thinking doesn't apply in the 21st century. Load up some 180 X-bullets and don't worry about it.

BTW, the M760/M7600 has had a floating barrel for ca. 50 years, it is certainly nothing "new".

tanoose · « **Reply #10 on:** May 06, 2006, 11:55:09 AM »

Fk if i were to use the 30/06 on grizzlies i would probibly go with a 180 or 200 grain swift a-frame or even a nosler partition but if your set on a 220 or 250 go for it, like i said i use the 220 in a 760 with never a problem . Good luck Tanoose I wanted to add Lonestar mentioned Jack O conner who once said if there was any need for the 220 grain bullet in the 30/06 it would be for Lions as he has shot clean through many grizzlys with the 180 grain bullets . so dont be afraid to use the 180's

fknipfer · « **Reply #11 on:** May 10, 2006, 06:00:53 PM »

I couldn't find any 250gr bullets but I found some 240gr PP from Woodleigh. The PP stands for Protected Point. I loaded 40 rounds up with (20ea) 52grs of 4831sc, and (20ea) with 54grs of 4831sc MV should be around 2350 to 2400fps. I am waiting for my FN Mauser to come back from the gunsmith as the stock dried out and split on me and I replaced with a synthethic stock.

I would feel a little safer with the Mauser the first time I fired these heavy rounds. The analysis of the 240gr round is really good. After I try it with the Mauser and no complications I will try it on the 7600. I guess I am not afraid of shooting a grizzly with a 220gr round from ambush or tracking, but stopping a charging grizzly would be another story. The biggest and baddest round I can have with me is what I think.

fknipfer

qajaq59 · « **Reply #12 on:** May 11, 2006, 01:50:48 AM »

I remember hearing that "Pumps wont shoot as good as bolts" story back in the 60s. Well, don't bet the farm on that story being true because I had one that certainly did, so long as I did my part.