16ga.com ~ View topic - Roster's ridiculous statement in Shooting Sportsman

Joined: 04 Mar 2019 Posts: 1841 Location: Central ND

I have a subscription to Shooting Sporstman for one reason, to read the articles by Wyochukar.....that's it.

In the January/February 2023 edition, Tom Roster states that putting a 2 3/4" load into a 2 1/2" hull and roll crimping will put the PSI over SAAMI max. First of all many of us have actually tried this, and no one that I know of has ever recorded higher pressures. I've seen them close to the same chamber pressure to about 500 PSI lower than a fold crimped load of the identical components, but never higher. He goes on to say it's because you have reduced the volume of the hull???? Really??? Total BS. This guy should know better than that and he produces reloading manuals??? He must consult with BPI.

This article is a perfect example of why I don't read magazines any more.

A finished 2 3/4" 12 gauge fold crimped hull is 2.330" plus or minus, depending on the hull, load,etc.

A finished 2 3/4" 16 gauge fold crimped hull is 2.360" plus or minus, depending on the hull, load,etc.

That leaves a fair amount of hull to roll over, after cutting it down to 2 1/2".

Sorry for the rant, but this kind of stuff is just uncalled for, especially from Roster. He obviously doesn't know what he thinks he knows.

I won't even start to comment on the keeping shells warm nonsense later in his article(article is being generous), he must only hunt in Mexico.

Joined: 04 Mar 2019 Posts: 1841 Location: Central ND

After further review.....

In Sept. 2021, I just happened to have reloaded 2 boxes of:

Remington RGL hull
Winchester 209
21.0 Grains 800-X
Claybuster CB0100-16 wad
1 oz. #7 magnum.

This load is right off the Hodgdon website. The difference between the two boxes one was fold crimped. The other box was roll crimped.

The OAL....fold crimped loads were 2.340" the roll crimped loads were 2.360". Basically they are crimped to the same OAL. Which means that the contents of the load take up the same amount of room in the hull.

How in the world is a roll crimp using a thin overshot card going to increase pressure over the fold crimped load......especially to be over SAAMI MAP??? With the exact same amount of room for the load in the shell? Kinda blows the volume argument right out of the water......where it belongs in the first place.

All I can do is sit here and shake my head.

Joined: 09 Feb 2015 Posts: 821

Actually Rosters comments lacks common sense.
If the content of the load is the same in roll crimp 2 1/2" or 2 3/4 fold crimp. Between the two will make little difference. Which could be couple of tenths ×/- 2 tenths in most all load will change somewhat.

Joined: 22 May 2020 Posts: 268 Location: Ky

I had to read what he wrote,expecting to see some data or quote about some testing from Tom. Instead to my surprise he just threw out some garbage internet like statement, you would expect from some goof( which I didn’t expect he was). Hopefully word gets to him that his credibility is at stake and he puts some data where his mouth is.

I like that Mag , and a few of Mr Rosters articles caught my eye . He did an article on long range 28ga loads . In the article he mention CCI M primers and Feds . He proceeded thru the article leaving out the Fed primer results . I sent him an email about this as I had Feds and had to borrow the CCI's . The response was : if you need further results , contact my office and have a credit card handy as it's 85 bucks an hr plus a fee for the result wanted . End of contact with that guy !!

Joined: 04 Mar 2019 Posts: 1841 Location: Central ND

I dealt with Mr. Roster, many years ago.....this is kinda like the pot calling the kettle black, but he isn't Mr. Congeniality and Precision was selling his manuals back then!!

Jta5er said something about his credibility, not sure he cares.

Roster has actually had some decent articles recently, but this last one has got me wondering.

Never cared one bit for roster.
Always seemed like a pompous azz.

Joined: 04 Mar 2019 Posts: 1841 Location: Central ND

DUKFVR,

You have obviously dealt with Mr. Roster!! Laughing

Joined: 30 Sep 2020 Posts: 185 Location: ont canada

Joined: 09 Mar 2016 Posts: 754 Location: Mn.

Joined: 28 Mar 2008 Posts: 1460 Location: Eagle, Nebraska

Roster is the smartest guy he ever met...

Joined: 14 Apr 2020 Posts: 144 Location: Boise,Idaho

Funny. I find that to be true more often than not!

Bob

Joined: 12 May 2022 Posts: 12 Location: Texas & New Mexico

Joined: 12 May 2022 Posts: 12 Location: Texas & New Mexico

Joined: 12 May 2022 Posts: 12 Location: Texas & New Mexico

sorry fellows, i tried sending this message mulitiple times because i keep getting error messages when i tried to submit....and there was no provision for correcting what ever was malfunctioning.

revisited today and discovered that (unknown to me) the system had accepted every one of the previous attempts to submit....i don't understand whats going on here.

best regards,

tom