While there are many 7mm short mags to choose from, Id like to point out and discuss a few that are worth looking into.
The three I'm comparing are; 7RSAUM the 7WSM and the 7SS (Sherman short) This basically is an on paper head to head battle for those looking into building or buying a hunting/ Long range precision rifle in any of these calibers.
All calibers mentioned will be compared using 180gr factory ammo with the exception of the Sherman wildcat using data from their website, there will not be any load data posted for liability reasons, velocity as advertised will be compared, all rifles and loads are different.
I'm not at all a subject matter expert, and there are many calibers to choose from, what I'm hoping to achieve is shortening the "shopping phase" for anyone getting into the market or undecided on this subject, and if this takes off I'll start posting articles on other calibers in "head to head" comparisons.
For starters the 7mm Remington Short Action Ultra Mag (RSAUM)
Remington introduced the 7Saum in 2002 to compete with the 7WSM (Winchester short magnum) and was intended for long rage use, the differences between the two cartridges as far as velocity differs by barely 50FPS with both calibers achieving optimal balistic ranges with 120-160gr bullets. Remington was a day late and a dollar short with this cartridge, resulting in the 7WSM being more popular with more options from the factory and reloading supplies becoming more available faster and cheaper this resulted in the 7SAUM becoming the more costly cartridge as of mid 2014 with the lower demand for factory ammunition. The 7 SAUM is a popular cartridge in F-class competitions and holds many records in this discipline, the 7SAUM is also a popular choice with long range shooting competitions inside the 1200 yard range but with experiments in hand-loading can be taken out further.
The 7 SAUM is a .532 bolt face rimless bottleneck cartridge that with load development and tuning can easily handle 180gr bullets at velocities around 2,850fps and still have room in the magazine without exceeding the maximum COAL. The biggest cons to the 7RSAUM are factory availability and price per round, while the pros are that with some tweaking you can get it to run heavy for caliber bullets with little to no issues and once you can find the components to reload its fairly easy to reload for.
Next we have the 7mm Winchester Short magnum (WSM)
As stated in the previous paragraph the 7wsm was released prior to the 7RSAUM in 2001 in a partnership with Browning arms company, of the original WSM family it was the least popular due to the shorter case neck making it difficult to load heavy for caliber bullets making it less suitable for large game, cost was another downfall for the 7WSM being that the 7RUM and 280 Rem had already gained a foothold ahead of it the 280 having a touch less muzzle velocity and the 7mag being about equal.
The 7WSM is a .532 bolt face bottle necked cartridge that serves its purpose for large game like Mule deer, Elk, Black bear ect, but prefers the shorter lighter bullets due to case design however it is capable of launching a 180gr bullet at velocities around 2,850fps like its Remington rival, but comes in much more cost effective at $40-60 lower in cost to the 7Saum per box of 20 rounds. The 7WSM also is more available with factory ammunition being found online and in some local stores where the 7SAUM is difficult to find even online.
And last but certainly not least the 7mm Sherman Short.
The 7SS was designed by Richard Sherman as a laser shooting 7mm short magnum with as much as 10 grains more of case capacity than its factory competition, the neck is lengthened and a 40 degree shoulder is formed while maintaining the same COAL with the 7SAUM at 1.920. The 7SS boast its ability to shoot 180gr bullets at velocities of 3,000fps and even sending the 195 EOL bullets at velocities over 2,900FPS. The biggest drawback to the 7SS is that while and incredible round it is a wild cat, with reloading components such as brass and dies only being available from ADG for brass and Hornady for dies both can be purchased from the Sherman wildcats website. The Sherman family of cartridges are fairly new to the market but hold impressive records in F-class and long range competitions competing with the best of them.
The 7SS is a .532 bolt face bottleneck cartridge that boast a tremendous ability to handle heavy for caliber bullets and handle them well with the cons being extremely limited components for it and a heavy price tag for brass/dies along with the only source for load data being published on their website in an "experimental" list
Published load data for the 7SS can also be found on the Sherman wildcat website and the discussion forums to see realistic results from those experimenting with the Sherman wildcat family.
Hope that assists in some way or another I did not get as deep into a comparison as I would've liked to but hopefully I've been able to assist in the decision making process....Thank You to all who took the time to read!
The three I'm comparing are; 7RSAUM the 7WSM and the 7SS (Sherman short) This basically is an on paper head to head battle for those looking into building or buying a hunting/ Long range precision rifle in any of these calibers.
All calibers mentioned will be compared using 180gr factory ammo with the exception of the Sherman wildcat using data from their website, there will not be any load data posted for liability reasons, velocity as advertised will be compared, all rifles and loads are different.
I'm not at all a subject matter expert, and there are many calibers to choose from, what I'm hoping to achieve is shortening the "shopping phase" for anyone getting into the market or undecided on this subject, and if this takes off I'll start posting articles on other calibers in "head to head" comparisons.
For starters the 7mm Remington Short Action Ultra Mag (RSAUM)
Remington introduced the 7Saum in 2002 to compete with the 7WSM (Winchester short magnum) and was intended for long rage use, the differences between the two cartridges as far as velocity differs by barely 50FPS with both calibers achieving optimal balistic ranges with 120-160gr bullets. Remington was a day late and a dollar short with this cartridge, resulting in the 7WSM being more popular with more options from the factory and reloading supplies becoming more available faster and cheaper this resulted in the 7SAUM becoming the more costly cartridge as of mid 2014 with the lower demand for factory ammunition. The 7 SAUM is a popular cartridge in F-class competitions and holds many records in this discipline, the 7SAUM is also a popular choice with long range shooting competitions inside the 1200 yard range but with experiments in hand-loading can be taken out further.
The 7 SAUM is a .532 bolt face rimless bottleneck cartridge that with load development and tuning can easily handle 180gr bullets at velocities around 2,850fps and still have room in the magazine without exceeding the maximum COAL. The biggest cons to the 7RSAUM are factory availability and price per round, while the pros are that with some tweaking you can get it to run heavy for caliber bullets with little to no issues and once you can find the components to reload its fairly easy to reload for.
Next we have the 7mm Winchester Short magnum (WSM)
As stated in the previous paragraph the 7wsm was released prior to the 7RSAUM in 2001 in a partnership with Browning arms company, of the original WSM family it was the least popular due to the shorter case neck making it difficult to load heavy for caliber bullets making it less suitable for large game, cost was another downfall for the 7WSM being that the 7RUM and 280 Rem had already gained a foothold ahead of it the 280 having a touch less muzzle velocity and the 7mag being about equal.
The 7WSM is a .532 bolt face bottle necked cartridge that serves its purpose for large game like Mule deer, Elk, Black bear ect, but prefers the shorter lighter bullets due to case design however it is capable of launching a 180gr bullet at velocities around 2,850fps like its Remington rival, but comes in much more cost effective at $40-60 lower in cost to the 7Saum per box of 20 rounds. The 7WSM also is more available with factory ammunition being found online and in some local stores where the 7SAUM is difficult to find even online.
And last but certainly not least the 7mm Sherman Short.
The 7SS was designed by Richard Sherman as a laser shooting 7mm short magnum with as much as 10 grains more of case capacity than its factory competition, the neck is lengthened and a 40 degree shoulder is formed while maintaining the same COAL with the 7SAUM at 1.920. The 7SS boast its ability to shoot 180gr bullets at velocities of 3,000fps and even sending the 195 EOL bullets at velocities over 2,900FPS. The biggest drawback to the 7SS is that while and incredible round it is a wild cat, with reloading components such as brass and dies only being available from ADG for brass and Hornady for dies both can be purchased from the Sherman wildcats website. The Sherman family of cartridges are fairly new to the market but hold impressive records in F-class and long range competitions competing with the best of them.
The 7SS is a .532 bolt face bottleneck cartridge that boast a tremendous ability to handle heavy for caliber bullets and handle them well with the cons being extremely limited components for it and a heavy price tag for brass/dies along with the only source for load data being published on their website in an "experimental" list
Published load data for the 7SS can also be found on the Sherman wildcat website and the discussion forums to see realistic results from those experimenting with the Sherman wildcat family.
Hope that assists in some way or another I did not get as deep into a comparison as I would've liked to but hopefully I've been able to assist in the decision making process....Thank You to all who took the time to read!
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a Norma shorted and necked down is about the most use
