by B.B. Pelletier
Photos and testing by Earl “Mac” McDonald
Today, we’ll look at the power of this new Beeman R7 rifle. Boy, did you guys unload on the design changes made to this new airgun! Those ventings did not fall on deaf ears, either. The senior management at Pyramyd Air read what you said with interest, and I think the next time changes are made we may be consulted for input. This set of changes was made by the old guard at the Beeman company, just before they were sold to Shanghai.
Mac is testing a rifle that came with a 10-for-$10 test chrono ticket, so we have Pyramyd Air’s velocity numbers to start with. They were shot with RWS Hobby pellets and recorded an average velocity of 673 f.p.s. The spread went from 661 to 687, which is 26 f.p.s. The average muzzle energy was 7.04 foot-pounds.
Now, for Mac’s results. You may remember from the R1 test that his chronograph does not agree with the Pyramyd Air chronograph. Don’t let that upset you. It’s the way things work. There will always be some small disagreements and we’ll see more of them today.
JSB Exact 8.4 grain
Let’s begin the test with the JSB Exact 8.4-grain pellet. Mac got an average of 612 f.p.s. with a spread from 600 to 624 f.p.s. That works out to an average muzzle energy of 6.98 foot-pounds. He noticed a lot of dieseling during this test, so he then cleaned the barrel with J-B Non-Embedding Bore Cleaning Compound.
Following the cleaning, he chronographed the JSB pellet again and found it averaged 590 f.p.s. The spread was reduced from 24 f.p.s. to 19 f.p.s. The average muzzle energy was now 6.49 foot-pounds.
Next, he tried RWS Hobby pellets. They averaged 659 f.p.s. with a 17 foot/second spread from 649 to 666 f.p.s. The average muzzle energy was 6.74 foot-pounds. That’s lower than the Pyramyd Air reading, but it’s not as far apart as it was in the R1 test. So, these two chronographs are off by a percentage rather than by a fixed amount. Also, the Pyramyd Air reading was taken on a gun that we know was dieseling. The max velocity spread Pyramyd Air got was 26 f.p.s., while Mac saw only 17 f.p.s. That difference was probably due to the cleaned bore.
Crosman Premier lites
Crosman Premier 7.9-grain pellets averaged 604 f.p.s. with a 26 foot/second velocity spread from 587 to 613 f.p.s. The average muzzle energy was 6.4 foot-pounds.
RWS Superdomes averaged 612 f.p.s. with a 26 foot/second velocity spread from 587 to 613 f.p.s. Yes, they went exactly as fast as the Crosman Premier lites and had the exact same spread. Being heavier, though, they produced an average muzzle energy of 6.9 foot-pounds.
Only because he had it handy did Mac also test his personal R7 with the same RWS Superdomes. His rifle averaged 634 f.p.s. with a 15 foot/second spread from 628 to 644 f.p.s. The muzzle energy averaged 7.41 foot pounds. I think that’s useful to know, for it demonstrates what may well happen to the test rifle after it has a thousand shots run through it. And, remember…I tuned Mac’s rifle many years ago.
Our test of the latest R7 shows that the rifle is still there where it has always been, power-wise. The shorter barrel did not increase the velocity as some people might have predicted.
Next, Mac will test it for accuracy, and we’re hoping for some great results.