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 Post subject: BT-99 ramped rib
PostPosted: Tue Aug 18, 2020 3:49 pm 
Field Grade

Joined: Tue May 12, 2020 10:17 am
Posts: 43
I just bought a BT-99. The model with adjustable butt and comb. I notice that the rib is ramped, i.e. not parallel to the barrel. It is higher at the back and ramp down towards the front.

What is the thinking with that? Seems most other shotguns have parallel ribs.




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 Post subject: Re: BT-99 ramped rib
PostPosted: Tue Aug 18, 2020 4:00 pm 
Crown Grade

Joined: Mon Jan 23, 2017 9:08 am
Posts: 2312
Location: Central NH
rhodesengr wrote:
I just bought a BT-99. The model with adjustable butt and comb. I notice that the rib is ramped, i.e. not parallel to the barrel. It is higher at the back and ramp down towards the front.

What is the thinking with that? Seems most other shotguns have parallel ribs.

It makes the gun shoot high to deal with rising targets.

You'll like it.


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 Post subject: Re: BT-99 ramped rib
PostPosted: Tue Aug 18, 2020 6:47 pm 
Limited Edition

Joined: Fri Sep 24, 2010 8:15 pm
Posts: 436
+1 to what painter* said above. Additionally . . .

rhodesengr wrote:
Seems most other shotguns have parallel ribs.


Not quite true for Trap guns, especially those intended for ATA-style trapshooting like your new BT-99. Check out the websites for other brands of Trap-specific shotguns such as Kolar, Krieghoff, Beretta, Caesar Guerini, Ljutic, and many others, and you'll see many models with sloping ribs (and adjustable-slope ribs too) . . . all designed (as painter* said) to configure the Point of Impact of your shot pattern to be some distance higher than your Point of Aim (which is highly beneficial for ATA-style Trapshooting). In fact, as you've discovered, Trap shotguns with a fixed rib that slopes downward have this feature intentionally built-in as part of its design.

Congrats on your new BT-99 . . . you've got a great gun for 16-yard and Handicap Trapshooting. It will serve you well for many, many years.

_________________
Author of:
- Understanding Shotgun Stocks for better shooting: Features, Fit, Fixes, Fables, and Facts,
- The Browning BT-99 Single Barrel Trap Shotgun.
both available direct from the publisher: http://www.gunshowbooks.com/


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 Post subject: Re: BT-99 ramped rib
PostPosted: Wed Aug 19, 2020 10:36 am 
Field Grade

Joined: Tue May 12, 2020 10:17 am
Posts: 43
OK, thanks guys. I read up on ribs so I understand now the idea is to shoot high. I will be shooting it tonight for the first time. So I guess point low :)


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 Post subject: Re: BT-99 ramped rib
PostPosted: Thu Aug 20, 2020 5:44 am 
Crown Grade

Joined: Mon Jan 23, 2017 9:08 am
Posts: 2312
Location: Central NH
rhodesengr wrote:
OK, thanks guys. I read up on ribs so I understand now the idea is to shoot high. I will be shooting it tonight for the first time. So I guess point low :)

The idea of a sloping rib is to allow you to see the bird and have the POI high enough to hit a rising bird. If you point low you'll likely shoot under the bird.

The way the gun fits you will determine the sight picture when it's time to pull the trigger. You'll figure that out through repetition.




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