new here ..need help 300 saum

[AR_deerslayer]

Hello to all ..looks ;like an interesting site ..Im new to reloading so will have lots of questions
can anyone give me some tips and load data on the 300 saum I just bought a rem mod 7 ss , shot 2 diff factory rem loads 150 and 165 corelokts , cool barrel, 9o degree day , 2 inch best it will shoot , gun has a 3lb trig Me and a friend have bought a new rcbs supreme loader and dies and everything we need ,hes fairly familiar with reloading ...Im not! I have 60 rem brass, and I got 180 nosler hunting tip/green and fed 215 large mag rifle primers , havent bought powder ...looking for any load suggestions or tips and a good powder , I got some tips from my gunsmith on the gun and last night checked bedding block for debris/dirt and torqued the trigg and holddown bolts to 60in. lbs .. he also recommended that I take 4 ought steel wool and make 20-30 passes to help barrel out . . I just wont this gun to shoot 1 inch and I thinks its capable of it with some help ...thanks in advance , Lance

 

[wildgene]

...w/ the 180's I'd start w/ IMR-4831 (61.5gr. min./ 65.5gr. max), COAL of 2.825 to start, magnum primers...

...don't know the manufactures specs, but 60 in. lbs. sounds a little excessive...

...since you've been shooting it, I'd suggest a good copper cleaner to see if you're getting excessive fouling...

 

[ROVERT]

he also recommended that I take 4 ought steel wool and make 20-30 passes to help barrel out

I think I'd consult with another gunsmith before sending steel wool down the barrel. He does know that this isn't a 100 year old gunked up surplus barrel, doesn't he?

Maybe this is an accepted practice in some circles, it would be a new one to me though.

 

[DrMike]

Lance,

Welcome to the forum. First, I wouldn't be too eager to run steel wool down the tube. A good copper cleaner would be a much better solution. Second, it is an unfortunate fact that the Model 7 action is not as stiff as the Model 700. This doesn't mean that they can't be made to shoot; it simply means they are a bit more fussy. I'd likely tend toward 165/168 grain bullets in that case, though 180s will certainly work. I just finished quite a bit of work with a 300 SAUM, and the upstart was that the owner opted to screw on a new tube. The owner had attempted to shoot Berger 168 grain VLDs. I was able to get 0.75 inch groups with Hodgdon SuperFormance, but he wanted better accuracy. He asked me to test Swift 165 grain Sciroccos and 165 grain SSTs. The SSTs didn't perform as we expected, but the Sciroccos gave what I thought was good performance with H4350. I actually had 0.6 inch performance and good velocity with 180 grain Sciroccos in his short barreled SAUM. I'd focus on the bullet chosen--if the 180 BT, then that'd be the bullet I focused on. You'll be limited by the magazine depth, so adjusting for accuracy will be a matter of attention to detail in technique and minute adjustment in charge. I'd focus on IMR4350 (or alternatively, H4350 or RL22) and set up a test from the Nosler Manual with two grain increments between minimum and maximum. Test these for accuracy (and if you have access to a chronograph for velocity paying especial attention to the standard deviation). Armed with this information, I'd be aware that the charges burned consistently, and it would provide me with a basis for changing one thing at a time. While the F215 primers will work very well in the 300 SAUM, I prefer the regular rifle primers in the short magnums. There is more than enough brisance to ignite the powder column, and especially in your climate.

 

[AR_deerslayer]

ok guys thanks a lot I will start this weekend I will be happy with 1inch out of this gun , Most my shots will be 0-300 ,the gun feels great its topped with a nikon buckmasters 4.5x14x40 silver ..some of the terms yall are using are spanish to me on the reloading . I dont know much at all about it but eager to learn .I will stay away from the steel wool , I have some good foaming copper deposit remover

 

[AR_deerslayer]

...w/ the 180's I'd start w/ IMR-4831 (61.5gr. min./ 65.5gr. max), COAL of 2.825 to start, magnum primers...

...don't know the manufactures specs, but 60 in. lbs. sounds a little excessive...

...since you've been shooting it, I'd suggest a good copper cleaner to see if you're getting excessive fouling...

what is the term COAL?

 

[OU812]

...w/ the 180's I'd start w/ IMR-4831 (61.5gr. min./ 65.5gr. max), COAL of 2.825 to start, magnum primers...

...don't know the manufactures specs, but 60 in. lbs. sounds a little excessive...

...since you've been shooting it, I'd suggest a good copper cleaner to see if you're getting excessive fouling...

what is the term COAL?

Cartridge Over All Length= coal

Is the barrel free floated? meaning can you slide a dollar bill under the barrel between the stck and have it go all the way to the action with out hanging up?

 

[AR_deerslayer]

its not floated I havent tried to slide paper under it but it is factory and shouldnt be ...I can take it to a smith and have it accurized for 300.00 , but I would rather see what I can do without dropping that much into it

 

[OU812]

its not floated I havent tried to slide paper under it but it is factory and shouldnt be ...I can take it to a smith and have it accurized for 300.00 , but I would rather see what I can do without dropping that much into it

I don't know much about the remington 7 but with my 700's all I ever do is sand out the barrel channel, apply truoil to seal the wood and go forth with an accurate rifle. That is all I have done to my 8mm or 350 rem mag.

 

[Guest]

If you've got a pound handy, try some Varget in your 300SAUM. A good friend of mine has one in a 700 that performs very well with Varget and 165's.

Beyond that, the guys have you well covered. I'd back off to about 45in-lbs (and be sure you're using INCH pounds, not foot pounds - I've seen that mistake before) on the stock screws.

 

[AR_deerslayer]

I used a calibrated snap on in lb torque wrench . Im a tech for CAT . 60 in lbs is what all the local smiths told me to torque the large bolt , and 20 on the small bolt ..we have some varget and retumbo . . ready to try it !

 

[OU812]

I used a calibrated snap on in lb torque wrench . Im a tech for CAT . 60 in lbs is what all the local smiths told me to torque the large bolt , and 20 on the small bolt ..we have some varget and retumbo . . ready to try it !

If this is a wood stock I would think 30-35 inch lbs front screw and 20 on the rear screw would be about correct. 60 inch lbs on a wood seems a bit excessive to me and ya might end up having a stock or trigger gaurd that is as messed up as a soup sandwich. Just my .02

 

[AR_deerslayer]

its synthetic .

 

[OU812]

its synthetic .

That sounds better with 60/20 inch lbs.

 

[Antelope_Sniper]

I didn't see your barrel length, so I went with 24"

MagPro looks interesting to me:
12 rounds of 180gr NBT in a semi-auto at 3k. What's not to love?

Cartridge : .300 Rem SA Ultra Mag
Bullet : .308, 180, Nosler BalTip 30180
Useable Case Capaci: 64.157 grain H2O = 4.166 cm³
Cartridge O.A.L. L6: 2.825 inch = 71.76 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Accurate MAGPRO

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.714% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-07.1 103 65.00 2754 3032 47866 10571 91.2 1.288
-06.4 104 65.50 2779 3088 49198 10668 91.7 1.271
-05.7 105 66.00 2805 3144 50575 10763 92.2 1.255
-05.0 106 66.50 2830 3201 51998 10856 92.6 1.240
-04.3 107 67.00 2856 3259 53468 10947 93.1 1.224
-03.6 107 67.50 2881 3318 54987 11035 93.5 1.208
-02.9 108 68.00 2907 3377 56558 11121 93.9 1.193 ! Near Maximum !
-02.1 109 68.50 2933 3437 58181 11204 94.3 1.178 ! Near Maximum !
-01.4 110 69.00 2958 3498 59863 11285 94.7 1.163 ! Near Maximum !
-00.7 111 69.50 2984 3559 61603 11364 95.1 1.148 ! Near Maximum !
+00.0 111 70.00 3010 3621 63401 11439 95.4 1.134 ! Near Maximum !
+00.7 112 70.50 3036 3684 65269 11512 95.8 1.119 !DANGEROUS LOAD-DO NOT USE!
+01.4 113 71.00 3062 3747 67200 11581 96.1 1.105 !DANGEROUS LOAD-DO NOT USE!
+02.1 114 71.50 3088 3812 69202 11648 96.5 1.091 !DANGEROUS LOAD-DO NOT USE!
+02.9 115 72.00 3114 3876 71278 11711 96.8 1.077 !DANGEROUS LOAD-DO NOT USE!
+03.6 115 72.50 3140 3942 73430 11772 97.1 1.063 !DANGEROUS LOAD-DO NOT USE!

 

[OldMan]

I worked up a load for a model 700 300 saum that shot well under an inch with very little recoil. It was 66 gr of RL-22 and the 180 BT. Lots of deer and some elk have hit the ground with this rifle and load. I never chronographed it, but Nosler shows 2900.

 

[AR_deerslayer]

barrel is 22 inch ..thanks guys .really appreciate it ..keep any tips coming! what do I need to watch for in pressure? and also on case length and seating ?

 

[AR_deerslayer]

well we tried 59.5 gr. of 4350 and 60. of 4350 with the 180 gr. nosler bt , the 60 shot 1 inch average the 59.5 were real close , gonna try the sims barrel dampner and load some 61 gr and try again I am pleased with it now and will hunt with it maybe the 61 gr. will shoot even better

 

[JD338]

AR_deerslayer

Welcome to the forum, glad you are here and the fellas are getting you set up.

As mentioned, stay away from the 0000 steel wool down the bore. Use a good copper solvent like Sweets 7.62 and a good bore cleaner like Butche's Bore Shine or Shooters Choice MC 7. Any rough spots can be smoothed up with JB's Bore Paste.

Sounds like IMR 4350 is working well for you. Once you find the right powder and charge weight, you might be able to tweak your load by changing the COL. Keep us posted with your range results and we will help you get to where you want to be.

JD338