Wildcat ~ Proprietary Cartridges
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GNR wildcat or proprietary cartridges were
designed by Gary Reeder of Gary Reeder
Custom Guns, located in Flagstaff, Arizona.
The cartridges are used in Mr. Reeder's
custom revolvers and rifles.
Gary Reeders Custom Guns originally began
as a standard gun shop called "The Pistol
Parlor" approximately in 1980,  and is still
operated today by Gary's wife Colleen
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Gary and his son Kase still build beautiful
custom guns today in the large fully
equipped shop located near the Pistol Parlor.
Originally building full custom Remington
XP-100's and full custom Contenders, now
there are over four dozen custom revolvers
series, including cowboy guns and larger
caliber hunting handguns, full custom large
caliber hunting rifles and many one of a kind
specialty guns.
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310 GNR $ 6.75 per Cartridge
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Complete set of 10 cartridges: $ 44.95
includes 300 GNR(Save $9.35 over the single prices below)
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150 grain, .30 cal., 2855 F.P.S
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200grain, .338 cal., 2625 F.P.S.
338 GNR$ 7.75 per Cartridge
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356 GNR, $ 3.50 per Cartridge
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378 GNR $ 6.50 per
Cartridge
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41 GNR $ 2.95 per Cartridge
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410 GNR $ 3.50 per
Cartridge
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$ 6.50 per Cartridge
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510 GNR $ 3.95 per Cartridge
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8mm GNR $ 6.95 per Cartridge
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125 grain, .38 cal., 2,000 F.P.S.
260 grain, .375 cal., 2350  F.P.S.
170 grain, .41 cal., 1980 F.P.S.
210 grain, .41 cal., 1,800 F.P.S.
375 grain, .475 cal., F.P.S. is N/A
350 grain, .50 cal., 1250 F.P.S.
200 grain, 8mm cal., 2235 F.P.S.
310 GNR, developed in 2004, based on the
405
Winchester case necked down to .30 Caliber
338 GNR, developed in 1995, based on the
405
Winchester case necked down to .375 Caliber
356 GNR, developed in mid 1990's, based on
the 41 Rem. Mag case necked down to .38
Caliber
378 GNR, developed in late 1980's, based on
the 405 Bertram necked down to .375 Caliber
41 GNR, developed in 1978, based on the 44
Rem. Mag. case necked down to .41 Caliber
410 GNR, developed in 2001, based on the
454 Casull case necked down to .41 Caliber
475 GNR, developed in 1987, based on
the 45-70  case blown out to ..475 Caliber
510GNR, based on the 348 Winchester case,
shorten to 1.25" and  blown out to .510
Caliber, or basically a shortened 500
Linebaugh case to produce lighter loads.
8mm GNR, developed in 2005, based on the
405 Winchester case necked down to 8mm
caliber
Left to Right:
310 GNR, 338 GNR, 356
GNR, 378 GNR,
41 GNR, 410 GNR, 475
GNR, 510 GNR, 8mm GNR
Not shown in picture (Left)
300 GNR see below
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For more cartridge
details, please see
information below on
each caliber.
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300 GNR Wildcat
made from 30-30 Winchester
true wildcat, 30-30 headstamps
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110 grain, 30 cal.
30-30 Head Stamp
Rem. or Win.
300 GNR Wildcat
$ 5.95 per Cartridge
GNR Custom
Please note, very long page
Please note, very long page
Below please find single cartridges available
475 GNR ,Out of Stock
510 GNR ,Out of Stock
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510 GNR ,Out of Stock
410 GNR ,Out of Stock