Remington 740, 742, 7400

R

RT

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Ok, whats the difference in these models. I know they are frequently referred to as jamomatics, but Id like to know the differences and preferred models.
 
The biggest functional difference was the change from a 18-or-19-lug bolt to a 4-lug bolt when they changed to the 7400 about 1980. There were some minor changes to the gas system IIRC, and cosmetic changes to the stock/forend.
 
I have used both the 740 and 742 a fair bit and never had a jamming problem. I have seen several that jammed and in every case a thorough cleaning and a new magazine fixed the problem. Most problems I have seen stemmed from deformed magazine lips. The four lug bolt on the 7400/4 simplified manufacture, didn't seem to work any better. In most matters concerning guns my feeling is condition being equal, older is better.
 
Mike Webb said:
I have used both the 740 and 742 a fair bit and never had a jamming problem. I have seen several that jammed and in every case a thorough cleaning and a new magazine fixed the problem. Most problems I have seen stemmed from deformed magazine lips. The four lug bolt on the 7400/4 simplified manufacture, didn't seem to work any better. In most matters concerning guns my feeling is condition being equal, older is better.
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Ain't that the truth.....
 
Mike Webb said:
I have used both the 740 and 742 a fair bit and never had a jamming problem. I have seen several that jammed and in every case a thorough cleaning and a new magazine fixed the problem. Most problems I have seen stemmed from deformed magazine lips. The four lug bolt on the 7400/4 simplified manufacture, didn't seem to work any better. In most matters concerning guns my feeling is condition being equal, older is better.
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:agree:

Before anyone should condemn a well designed autoloader, ensure there is no problem from neglect or damage with the MAGAZINE. One of the four tires is flat on your Monte Carlo.It's hard to run in NASCAR and be competitive as like that!:wave:
 
The 740 and 742 series would eventually chatter the inner receiver with the multible locking lugs. The 7400 is designed to stop this from happening. I have owned several 742's and a couple have developed into chattering. The gun is basically toast at that point. My 7400 just keeps on shooting and I will never get rid of it. Very reliable and pleasure to carry in the woods.

Darryl
 
My model 4 in 30:06 has jammed with Wincherster plated cartriges. They would not extract and ripped the rim off the case.

I handload Remington brass with Speer or Barnes bullets or use Rem. factory loads with no problems.

Keep it clean, don't over lubricate and it is one of the best deer guns for Ontario.

It is also available in a carbine version with an 18.5 inch barrel, great for thick bush carry.

Stan
 
Stan in Toronto said:
My model 4 in 30:06 has jammed with Wincherster plated cartriges. They would not extract and ripped the rim off the case.

I handload Remington brass with Speer or Barnes bullets or use Rem. factory loads with no problems.

Keep it clean, don't over lubricate and it is one of the best deer guns for Ontario.

It is also available in a carbine version with an 18.5 inch barrel, great for thick bush carry.

Stan
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Stan i still have a 7400 in .30-06, but i recall loading in the 1980s for a friend at work who purchased a Model 4 in '06 and i will say it was without question the most accurate production North American Semi i have ever had the pleasure of loading for. My .243 7400 wouldn't touch it and that was the best i ever loaded for in a semi auto sporter.
 
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