Published load data for 7.5x55 Swiss?

[Krautguns]

Ive got three manuals. Speer, Hogdon, and Lyman. Not one has a single load for this cartridge. Anyone have a manual with 7.5x55 Loads in it? The thing takes a .308 dia bullet, so the possibilities are nearly endless. Someone has to publish data for this.

[sricciardelli]

http://stevespages.com/page8c.htm

[Krautguns]

Thats alot of load data. But...its pretty vague with some wide variations. Is this trustable data? I was looking or something more solid, from a manual.

[Abe Normal]

I’ve found Steve's load data pages to be an excellent resource!

That being said, for the most part, the max loads that he shows are just that MAX LOAD'S for a modern firearm! i.e. Steve shows this load for the 6.5 x 55 Swede "RL-22 from 39.7 grains to 49.0 grains Remington 9-1/2 Primer with a 140-grain bullet". I found that in my 1898 CG 46 grains was max. As with any load data "start low, work up slow"!

Again Streve's pages are, and should be, just one more piece of the puzzle on the way to developing the load for the firearm of choice.

It ain't gospel, it's just a resource!

[Krautguns]

Understood. Though the 89's and 1911's cant stand the loads a k31 can either. GP-11 cant be fired in either from what I read.

[Krautgunner]

@ Krautguns:

Hornady Handbook Of Cartridge Reloading fourth edition :

130 grain #3020 SP bullet
C.O.L.: 2,815"
Case: Swiss
Primer: Berdan 217B
Powder:
IMR 3031 35,5gr. - 43,0gr. (min. to max.)
IMR 4064 37,7gr. - 45,3gr.
H4895 38,0gr. - 46,0gr.
IMR 4320 40,4gr. - 47,6gr.
IMR 4350 45,6gr. - 53,0gr.

150grain #3011 SP (C.O.L.: 2,790"), #3033 BTSP (C.O.L.: 2,796"), #3035 RN (C.O.L.: 2,560"), #3037 FMJ-BT (C.O.L.: 2,818") bullets

IMR 3031 35,4gr. - 44,5gr.
IMR 4064 35,5gr. - 46,1gr.
H4895 36,6gr. - 46,7gr.
IMR 4320 38,6gr. - 47,6gr.
IMR 4350 44,8gr. - 52,8gr.

165grain '3040 SP (C.O.L.: 2,910"), #3045 BTSP
(C.O.L.: 2,910")
IMR 3031 32,4gr. - 42,4gr.
IMR 4064 33,7gr. - 43,2gr.
H4895 34.5gr. - 45,5gr.
IMR 4320 35,8gr. - 46,8gr.
IMR 4350 41,4gr. - 51,4gr.

168grain #3050 BTHP National Match (C.O.L.: 3,025")

IMR 3031 33,7gr. - 42,7gr.
IMR 4064 35,5gr. - 4306gr.
H4895 36,0gr. - 45,1gr.
IMR 4320 37,0gr. - 46,2gr.
IMR 4350 38,6gr. - 49,2gr.

180grain #3070 SP (C.O.L.: 2,900"), #3072 BTSP (C.O.L.: 2,900"), #3075 RN (C.O.L.: 2,865")

IMR 3031 33,5gr. - 39,8gr.
IMR 4064 34,7gr. - 41,5gr.
H4895 34,8gr. - 41,6gr.
IMR 4320 35,7gr. - 42,0gr.
IMR 4350 38,1gr. - 47,5gr.




SIERRA RIFLE RELOADING HANDBOOK third edition:

Case: Norma
Primer:Winchester 8 1/2 - 120

110gr RN (C.O.L.: 2,650"), 110gr FMJ (C.O.L.: 2,650"), 110gr HP (C.O.L.: 2,750")

IMR 3031 38,7 - 44,7
IMR 4895 41,5 - 46,6
IMR 4064 44,4 - 47,8
IMR 4320 44,4 - 48,0
IMR 4350 53,3 - 55,0
Accuracy Load: IMR 4895 44,9
Hunting Load: IMR 4895 44,9

125gr Spitzer (C.O.L.: 2,800")

IMR 3031 36,0 - 44,0
IMR 4895 38,5 - 44,5
IMR 4064 40,0 - 45,0
IMR 4320 42,4 - 45,0
IMR 4350 52,2 - 53,7
IMR 4831 55,0 - 56,3
H4831 57,9 - 59,0
Accuracy Load: IMR 4064 43,3
Hunting Load: IMR 4064 43,3

150gr FMJBT (2,950"), 150gr Spitzer (2,950"), 150gr Spitzer BT (2,950"), 150gr Matchking HPBT (2,950"), 150gr RN (2,650")

IMR 3031 37,6 - 44,4
IMR 4895 38,5 - 46,5
IMR 4064 40,2 - 46,6
IMR 4320 40,4 - 47,6
IMR 4350 47,0 - 53,0
IMR 4831 53,0 - 55,1
H4831 56,0 - 58,0
Accuracy Load: IMR 4064 45,0gr
Hunting Load: IMR 4064 46,6gr

165gr Spitzer BT (3,060"), 165gr HPBT (3,060"), 168gr Matchkinh HPBT (3,060")

IMR 3031 35,8 - 43,0
IMR 4895 38,4 - 45,6
IMR 4064 38,2 - 45,8
IMR 4320 40,6 - 46,6
IMR 4350 46,8 - 51,0
IMR 4831 50,9 - 53,0
H4831 53,2 - 55,2
Accuracy Load: IMR 4064 43,9
Hunting Load: IMR 4064 45,8

180gr Spitzer (3,060"), 180gr Spitzer BT (3,060"), 180gr Matchking HPBT (3,060"), 180gr RN (2,850")

IMR 3031 32,5 - 38,5
IMR 4895 34,0 - 40,3
IMR 4064 34,2 - 42,6
IMR 4320 37,5 - 43,5
IMR 4350 44,0 - 47,6
IMR 4831 47,7 - 49,5
H4831 50,2 - 52,3
Accuracy Load: IMR 4350 45,8gr
Hunting Load: IMR 4350 47,6gr


200gr Spitzer BT (3,060"), 200gr Matchking HPBT (3,060")

IMR 3031 33,8 - 38,2
IMR 4895 35,9 - 40,3
IMR 4064 36,0 - 42,0
IMR 4320 36,5 - 42,5
IMR 4350 42,1 - 46,3
IMR 4831 46,0 - 48,2
H4831 49,0 - 51,2
Accuracy Load: IMR 4350 44,2gr
Hunting Load: IMR 4350 46,3gr


I have also excellent data of loads with the german RWS cases, primers and bullets and the german Dynamit Nobel Rottweil powders (R 901 - R 907).
But I doubt, that these components are imported into the USA.
If they should be available to you, let me know, and I'll post that data too. Some of these loads are pressure tested by the renowned firearms proof-house DEVA (HOT, but SAFE!).


Bye

[sricciardelli]

"Thats alot of load data. But...its pretty vague with some wide variations. Is this trustable data? I was looking or something more solid, from a manual."

The data on my pages is "trustable"...but evidently you have difficulty reading...

"YOU MUST READ THIS PAGE BEFORE CONTINUING TO THE DATA PAGES
Or ... Hey, I Gotta Protect My Ass!

Number One:

The information and data contained on the reloading pages is for informational purposes only. I do NOT assume, nor do I accept ANY responsibility, implied or expressed, for the accuracy of the material posted, nor do I assume or accept ANY liability or responsibility, implied or expressed, of the results you will obtain by using any of the data posted on these pages.

I have no control over variations in components, reloading tools or your procedures. YOU are solely responsible for EVERYTHING that may occur using this data.

Number Two:

The information listed for MAXIMUM loads may be safe only in modern firearms of current manufacture and in excellent condition! The age and condition of YOUR firearm is the determining factor! NEVER, EVER, START WITH ANY OF THE MAXIMUM LOADS!!!

Number Three:

Always start out with the lightest powder load listed and work up GRADUALLY until signs of case failure or excessive pressure become evident! Or until the level of performance you desire is reached. WHICHEVER COMES FIRST!!

Number Four:

The data contained herein is NOT bounded by SAAMI limitations! Because of this fact, be ABSOLUTELY sure you understand numbers one, two and three above!!

The highlighted powder in the selection area is NOT sacred, truth, fact nor absolute. It is the powder and primer combination I chose as best when I was reloading that caliber, with that bullet. It is based on three simple facts:

1) A "gut feeling";
2) Over 40 years of experience;
3) They worked just fine in the firearm I was testing. "

[Krautguns]

I read just fine. I dont know the source of the info, and Ive never seen the source before. I hadnt intended on using it as gospel. It is however appreciated.

Kraut- lol thanks for the Hornady info.

[Johnny Guest]

A long standing by-word on this forum is Second Source. I think I first read it in a post by veteran member C.R.Sam, and I have shamelessly adopted the phrase for mine own. Even the best-recognized loading manuals have been known to have typographical/printing errors and transposed columns of data. Two sources, minimum! They can vary a bit, of course, but any large discrepancies must be carefully resolved by additional research.

Member sricciardelli has posted load information on his site for some time, and it is considered another valuable resource, especially to those of us who load a lot for Ruger rifles. Such of his information I have been able to verify through my own experience or through second- and third-sourcing has proven to be very, VERY close. Steve is meticulous in his cautions to the site visitors in use of his information.

This is about the best endorsement I can give another handloader, if I haven't personally looked over his shoulder while he was working. I have some of the same rifles he uses, and I'm STILL not gonna go directly to his max loads with MY valued firearms, not to mention my fingers and eyes.

Best,
Johnny

[riverdog]

http://www.swissrifles.com/ammo/ Links on the left point to reloading data

[Calfed]

"Understood. Though the 89's and 1911's cant stand the loads a k31 can either. GP-11 cant be fired in either from what I read."

Don't know where you got that idea. GP11 was developed for the 1911 rifles.

I've shot many hundreds of rounds of GP11 through my 1911 and 96/11 rifles. Never had a problem.

The 1889 rifle, of course, is a different animal. It is not desgned for GP11 ammo, but rather the old GP90 ammo.

[qajaq59]

The Lee manual has the 7.5 x 55 Swiss in it.

Modern Reloading
Second Edition
Richard Lee

[crowbeaner]

I believe the Hodgdon # 26 manual has data also.

[lonniemike]

As stated by Calfed "the 1889 rifle, of course, is a different animal. It is not designed for the GP-11 ammo,....". Also an 1896 rifle in the original issue chambering(not modified to a 96/11) is not designed for GP-11 use. Both rifle can cycle and fire GP-11, but the Swiss military is says not to use GP-11 in these SR rifle types except in a last stand effort if and only if no GP-90, GP-90/03, or GP-90/23 ammo is available.

308 and 7.62NATO(designed in the mid 1950's) are near equivalents to the GP-11(7.5X55)(designed in 1908). Check out Sierra's data for same bullet weights, powder types, and speeds, then look at the powder charges, they are scary close.

Steve's pages does have quite a bit of load recommendations for many types of ammo. Although I don't think he has actually loaded for the Swiss(I can be wrong), it is a good start and the biggest selection that I have seen. I like it. Like he says start low and work up. Be safe.

Crowbeaner is right. My Hodgdon# 26 does have some data for the 7.5X55. Which manual do you have? I like Sierra's data best as far as manuals go.

The older 11 type actions should handle 308 type velocities fine. The pressures will be a little lower because of the larger case capacity(almost the same as a 30'06). The 31 types are stronger yet but not meant to be pushed to magnum speeds.
You can find 308 data just about anywhere. Some people don't like chronographs. I am not in that crowd.best-o-luck