HW/Weihrauch Pellet Weight for Beeman R7

I think you mean 7.33. Those and the sister pellet, JSB RS 7.33s usually work great in most R7/Hw30 guns. The accuracy with the JSB branding of the same 7.33 pellets can sometimes vary between tins. The Falcons are almost always great. It's worth the extra couple of bucks for the AA of you can afford it.
I've had the same experience - the AA Falcon is consistently excellent while its JSB sister design can vary. It's become a fave for my R7 and P1.

To expand on the notes above re: pellet fit, I've found the 7.3 Falcons are faster at the muzzle than the 6.9 gr RWS Hobby in many guns. The latter has a thicker, stiffer, and slightly larger-diameter skirt than the former.
 
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Thanks for your comments. I love the rifle and don’t want to tax it unnecessarily. I get excellent accuracy with RWS 7.0 grain wad cutters and H&N 8.2 gr. domed pellets. Tom
Mine is a .20 cal and I shoot JSB 13.73s, out to 75 yards and it still has the accuracy and power to hit and latch Crazy Eight paddles out there.
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You are thinking backwards as far a straining the powerplant. Light pellets will be closer to a dry fire. Heavier pellets should soften the impact for the piston.
Jim Maccari of ARH mentioned to me; heavy pellets in .177 cal. will diminish spring life.
He said this regarding a R1 in .177 caliber using greater than 9 grain pellets :unsure: .
Don’t go too heavy ….. as Ron said, listen to your shot cycle and look at FPE numbers.
 
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